About Ivo Kostov

Ivo Kostov (IvoKo®, Dr Kostov®) is a certified valuer, a member of the American Society of Appraisers (ASA), the Polish Real Estate Scientific Society, and a founder member of the Chamber of Independent Appraisers in Bulgaria. He has 21 years of professional valuation experience in business enterprises, claims, financial assets and institutions, real estate, machinery and equipment. He is PhD and Associate Professor of Real Estate and Valuation of Assets and Businesses at the University of Economics – Varna, Department of Business, Investment, Real Estate. He offers valuation services, technical expertise and consulting, and follows the principles of integrity, speed of execution and respect towards clients.

Additional information

Education:
Type: A degree in Economics.
Educational Establishment: University of Economics - Varna.
Programme: "Economics of Construction".
Student internship: United Kingdom (2001), USA (2002, 2003).
Higher Education degree: "Bachelor's" (2002), "Master's" (2004).
Acquired a university degree in the relevant scientific area: "PhD" (2009).

He has defended a dissertation in front of HAC (Higher Attestation Commission which is part Council of Ministers of the Republic of Bulgaria) on the subject of "Investment in Real Estate in the Republic of Bulgaria".

Public registry of independent appraisers (valuers) of the Chamber of Independent Appraisers in Bulgaria:
- Included with № 926 (by the second quarter of 2025).

Professional experience in the valuation field:
- 2004-2005 – broker, manager of "Imoti i investicii" /"Real Estate and Investment" (an intermediary company that deals with real estate transactions, licensed valuations and construction entrepreneurship).
- 2005-2006 – regional valuer and an employee of "ProCredit Bank (Bulgaria)".
- from 2007 – present – member and manager of "N&K" (consulting/valuation company with the priority associate set as "Eurobank Bulgaria" /"Postbank"/ for the period of 2007-2012).
- 2008-2020 – valuations for "Expressbank" ("Societe Generale Expressbank").
- 2008-2015, 2023-2025 – valuer of "Аllianz Bank Bulgaria".
- 2009-2011, from 2018 – present – valuer of Varna Municipality.
- 2010-2014 – valuer of "Credit Agricole Bulgaria" ("Emporiki Bank – Bulgaria").
- 2010-2014 – valuer of "BDZ Group".
- from 2010 – present – valuer of the Ministry of the Interior.
- from 2010 – present – valuer of the National Revenue Agency (Ministry of Finance).
- from 2010 – present – valuer of the Registry Agency (Ministry of Justice).
- 2011-2023 – expert of Varna District Court (Ministry of Justice).
- 2011-2023 – expert of Varna Administrative Court (Ministry of Justice).
- 2011-2023 – expert of Varna Regional Court (Ministry of Justice).
- 2012-2022 – valuations for "Reiffeisenbank (Bulgaria)".
- from 2014 – present – valuations for "D Commerce Bank".
- from 2015 – present – valuations for "First Investment Bank" (Fibank).
- from 2017 – present – valuations/expertise for Private bailiffs.
- from 2018 – valuations/expertise for Insolvency representatives.
- from 2018 – valuations/expertise for Law firms.
- from 2019 – present – valuations for "Bulgarian Development Bank".
- from 2019 – valuations/expertise for Liability companies with special investment purposes (REITs).
- from 2019 – valuations/expertise for State bailiffs.
- from 2020 – valuations for Insurance companies.
- from 2021 – valuations for Pension security companies.
- from 2023 – valuations for Regional Administrations.
- from 2023 – valuations for "United Bulgarian Bank" (UBB, part of KBC Group).
- valuations/expertise for Accounting firms.
- valuations/expertise for Construction and investment companies.
- valuations/expertise for Real Estate Agencies.
- Other valuation/consulting activity/services (from 2004 – present) – self-employed, commissioned by different natural or legal persons regarding mortgage, consultations, sales/purchases, barters, divisions/segregations, inheritance, liquidations, lease, insurance, settling litigations and out-of-court disputes (resolving judicial and extrajudicial disputes), information for owner's need, investment analysis and projects, business development, reorganization, mergers and acquisitions of enterprises, bankruptcy and liquidation of companies, accounting needs, tax procedures and others.

Valuation reports:
- From 2004 to 2025, the number of valuation reports produced constitutes over 3300 expert valuations of subjects (tens of thousands) of different variations, which include: business enterprises, financial assets, hotel complexes, residential complexes, detached buildings in residential complexes, villa areas, landed estates, business buildings, office premises, warehouses, industrial estates, medical centres, machinery, equipment, facilities, installations and others.

Other professional experience:
- from 2008 – present – part of the academic staff of the Department of Business, Investment, Real Estate of the University of Economics – Varna (Assistant Professor, Chief Assistant Professor, Associate Professor); subjects that are taught (by 2025, a total of 24 subjects/courses for bachelors and/or masters) in programmes Economics of Construction/Construction Business and Entrepreneurship/Entrepreneurship and Investment Management, Economics of Real Estate/Real Estate and Investment, Construction Entrepreneurship and Real Property, Business Economics, Tourism, Management, Business Information Systems, Erasmus+ programme: Business Valuation (including to students from Aix-Marseille University, France, Seinajoki University of Applied Sciences, Finland, UTP University of Science and Technology in Bydgoszcz, Poland, Wroclaw University of Economics, Poland, Universite du Maine, France, Hochschule Aschaffenburg, Germany, University of Vigo, Spain, University of Granada, Spain, University of Limerick, Ireland, University of Economics in Bratislava, Slovakia, Turan University, Kazakhstan, Poznan University of Economics and Business, Poland, Anhalt University of Applied Sciences, Roma Tre University, Italy, Condorcet - Hainaut Provincial High School, Belgium, Sapienza University of Rome, Italy, University Paris Cite, France, formed by the merger of two universities originating from the historic University of Paris (La Sorbonne), University of Applied Sciences Osnabruck, Germany, Baden-Wuerttemberg Cooperative State University, Germany, Latvia University of Life Sciences and Technologies, Latvia – under the Erasmus+ programme), Real Estate Management and Valuation (to students from University of Applied Sciences Bonn-Rhein-Sieg, Germany, Anhalt University of Applied Sciences, Germany, International School of Management, Germany, Universite du Maine, France, Fontys University of Applied Sciences, Netherlands, Wroclaw University of Economics, Poland, UTP University of Science and Technology in Bydgoszcz, Calisia University – Kalisz (The President Stanislaw Wojciechowski State University of Applied Sciences in Kalisz), Poland, Ignacy Moscicki University of Applied Sciences in Ciechanow, Poland, Kyev National University of Trade and Economics, Ukraine, Kharkiv State University of Food Technology and Trade, Fan Noly University, Albania, University of Montenegro, Montenegro, University of Maribor, Slovenia, Cracow University of Economics, Poland, University of Gdansk, Poland, FHWien of WKW, Austria, University of Economics in Katowice, Poland, Roma Tre University, Italy, University of Huelva, Spain, University of Vigo, Spain – under the Erasmus+ programme), Insights into Consumer Behaviour (to students from University of Applied Science Worms, Germany, Baden-Wuerttemberg Cooperative State University, Germany, University of Applied Sciences Bonn-Rhein-Sieg, Germany, Ludwigshafen University of Business and Society, Germany, Sapienza University of Rome, Italy, University of Cadiz, Spain, Karel de Grote University College, Belgium, Fontys University of Applied Sciences, the Netherlands, Bucharest University of Economic Studies, Romania, Izmir Katip Celebi University, Turkiye – under the Erasmus+ programme), Asset Valuation, Tangible Assets Valuation, Management of Real Estate, Management of Real Estate in Tourism, Management of Gated Community Properties, Business Planning, Management of Human Resources, Management of Real Estate Sales, Economic Basics of Real Estate, International Business with Real Estate, Management of Construction Business, Enterprise Economics, Pricing in Construction, Organisation of Construction, Internet in Construction, Business Contacts, Real Estate Marketing, Investment and Construction, Real Estate Investment, Communications in Entrepreneurial Activity.

- Investor in real estate and other assets, property and other asset management, consulting services, drafting opinions on the offer, sales or rental prices of businesses, tangible, intangible and financial assets, preparation of technical expertise, plotting of residential and business properties, assistance in lending, negotiation of discounts/price reductions on sale or rental prices of various types of assets.

Scientific papers produced:
- Over 45 publications in Bulgaria and abroad (which includes articles published in the USA, Russia, Italy, Spain, and Poland /5 of which are indexed in Scopus – the largest abstract and citation database of peer-reviewed literature, 2 of which are also indexed in Web of Science/, monograph on the subject "Contemporary practices in the valuation of assets and businesses in Bulgaria", studies on the subject "Development in the area of valuation of real estate in Bulgaria" and participation in four collective (co-authored) monographs, three of which on the theme of "Property in the space" and one on the topic "Tendencje rozwoju wspolczesnego rynku nieruchomosci mieszkaniowych" which were published in Poland).

Large scale sites that were valued as requested by the following contracting entities as well as for the purposes of "Texim Bank", "POK Saglasie", "ZZK Saglasie", "ZD Saglasie", "Petrol Holding", "PONS Holding", "Lidl Bulgaria EOOD & Co", "Grand Hotel Varna", "Riviera", "Astera I", "Ambassador Tour", "Perla Holidays", "Cliff Golf Holliday Club", "Landmark Properties Bulgaria", "Iri Trade", "Yavor", "CBA Targoviya", "Ficosota Holding", "Eldominvest 1", "Patno stroitelstvo", "Transtriumph Holding", "Ekspres garantsion komers", Palace of Culture and Sports (Varna), "Address Bulgaria Holding", "Stephens Scown Solicitors" (Court – Truro, Cornwall, UK), the judicial system in Germany, tax purposes in the United Kingdom, liquidation processes in Denmark, clients from Izrael and others:
- POK "Saglasie" – the business.
- ZZK "Saglasie" – the business.
- ZD "Saglasie" – the business.
- "Grand Hotel Varna" – the business.
- "Green Park" Hotel (Golden Sands resort).
- "Erma" Hotel (Golden Sands resort).
- "Astera" Hotel (Golden Sands resort).
- "Bellevue" Hotel (Golden Sands resort).
- "Sunrise" Hotel (Golden Sands resort).
- "Oazis" Hotel (v.c. Riviera).
- "Riviera Beach 1" Hotel (v.c. Riviera).
- "Koraba" Hotel (Chaika resort).
- "Glicinia" Hotel (Chaika resort).
- "Sirius" Hotel (St. St. Konstantin and Helena resort).
- "Perla" Hotel (Slanchev bryag resort/Sunny Beach).
- "Bor" Hotel (Slanchev bryag resort/Sunny Beach).
- Part of "LTI Berlin Golden Beach" Hotel (Golden Sands resort).
- Holiday Centre "Tihiyat kat" (Balchik).
- Holiday Centre "Golden hills" (General Kantardjievo).
- Holiday Centre "Zhivata voda" (Varna).
- Holiday Centre "Diamond residence – Golf club" (Varna).
- Part of "Lighthouse golf resort" golf resort (Balchik).
- Residential Complex "Korona" (Varna).
- Resort and residential complex "Byala Beach Resort" (Byala).
- Commercial and Repair Auto Complex "City auto centre" ("Kia Motors", Varna).
- Automotive Centre "Varna Cars" (BMW, Varna).
- Commercial Administrative Complex "Ekspirian" (Varna).
- Multifunctional building "Opera building" (former building of Tax Office in Varna).
- Repair and reconstruction of the Palace of Culture and Sports (Varna).
- Unique worldwide test system for producing products related to agriculture, created through funding from European programs.
- Restaurants with Asian and Japanese cuisine (Sofia) and top chef on the Balkan Peninsula in this category.
- American vintage cars, rarely seen on the European market.

The main region of activity:
- District Varna (including Golden Sands, Sts. Konstantin and Helena, Byala).
- District Burgas (including Sunny Beach, Nessebar, Pomorie, Sozopol, Primorsko, Kiten, Tzarevo, Obzor).
- District Dobrich (including Balchik, Albena, Kavarna).
- District Shumen.
- District Targovishte.
- District Razgrad.
- District Silistra.
- District Ruse.
- District Yambol.
- District Sliven.
- District Sofia (Capitol).
- District Sofia.
- District Plovdiv and others.

Membership in professional organizations:
- from 2009 – present – one of the founding members of the Chamber of Independent Appraisers in Bulgaria (CIAB).
- from 2010 – present – one of the founding members of the Chamber of Independent Appraisers in Bulgaria – Regional College – Varna.
- 2010-2013 – a member of the Council of the Regional College – Varna, which is part of CIAB.
- 2014-2017 – a member of the Management Board of the Chamber of Independent Appraisers in Bulgaria.
- 2015-2017 – a member of the Council of studies and methodology of the Chamber of Independent Appraisers in Bulgaria.
- from 2015 – present – a member of the Polish Real Estate Scientific Society (TNN – Poland), which publishes Scopus and Web of Science indexed journal Real Estate Management and Valuation.
- from 2019 – present – a member of the Union of Scientists in Bulgaria (Varna Branch).
- from 2021 – present – a member of the American Society of Appraisers (ASA) /First Bulgarian Membership; a member of the International Virtual Chapter, a member of the European Chapter, and a member of the NorCal Chapter/; The American Society of Appraisers is a world-renowned and respected international organization devoted to the appraisal profession. As the oldest (created in 1936) and only major appraisal organization representing all appraisal specialists, ASA is dedicated to providing the highest possible standards in ethics, professionalism, education and designation criteria.

Other Memberships:
- from 2008 – present – Member of the Organizational Committee of the international scientific and practical conference "Construction entrepreneurship and real estate" in University of Economics – Varna.
- 2015-2016 – Member of the Organizational Committee and Editorial college included in the annual national conference of the Independent Appraiser in Bulgaria "Relevant subjects in regards to valuation practices" in relation to CIAB.
- 2015-2016, from 2018 – present – a member of the Editorial college in relation to the international scientific-practical conference "Construction entrepreneurship and real estate" in University of Economics – Varna.
- from 2016 – present – Member of the Scientific Council of Journal of the Greater Poland association of valuers of real estate (SRMWW) Poland.
- from 2016 – present – Member of the Scientific Council of the International Scientific Conference "Property in the space", Poland.
- from 2016 – present – Member of the Editorial Board (Reviewer) of Journal of Economics and Management in affiliation to the Economics University in Katowice, Poland, indexed in Scopus.
- from 2018 – present – Member of the Editorial Team (Reviewer) of Journal of the Polish Real Estate Scientific Society REAL ESTATE MANAGEMENT AND VALUATION (REMV), indexed in Scopus and Web of Science.
- from 2020 – present – Reviewer for JOURNAL OF HOUSING AND THE BUILD ENVIRONMENT (Springer – Springer Nature Switzerland AG), indexed in Scopus.
- from 2020 – present – Reviewer for Journal GEOMATICS AND ENVIRONMENTAL ENGINEERING (Journal of AGH University of Science and Technology, Krakow, Poland), indexed in Scopus.
- 2020-2023 – Member of the Academic Council of University of Economics – Varna.
- from 2024 – present – Member of the Faculty Council of Faculty of Economics of University of Economics – Varna.
- from 2021 – present – Reviewer for Journal ACTA SCIENTIARUM POLONORUM /SERIES ADMINISTRATIO LOCORUM – LAND ADMINISTRATION/ (Journal of University of Warmia and Masury in Olsztyn, Poland), indexed in Scopus.
- from 2022 – present – Reviewer for Journal ORGANIZATION & MANAGEMENT (Journal of Silesian University of Technology, Poland).
- from 2022 – present – Reviewer for Journal LAND (Journal from the MDPI group, a pioneer in open-access scholarly publishing and based in Basel, Switzerland, operating through offices in China, Spain, Serbia, the United Kingdom, Japan, Romania, Canada, Poland, Singapore, Thailand), indexed in Scopus and Web of Science.
- from 2023 – present – Reviewer for Journal SUSTAINABILITY (Journal from the MDPI group, a pioneer in open-access scholarly publishing and based in Basel, Switzerland, operating through offices in China, Spain, Serbia, the United Kingdom, Japan, Romania, Canada, Poland, Singapore, Thailand), indexed in Scopus and Web of Science.
- from 2023 – present – Reviewer for Journal BUILDINGS (Journal from the MDPI group, a pioneer in open-access scholarly publishing and based in Basel, Switzerland, operating through offices in China, Spain, Serbia, the United Kingdom, Japan, Romania, Canada, Poland, Singapore, Thailand), indexed in Scopus and Web of Science.
- from 2023 – present – Reviewer for Journal INFORMATION SCIENCES (Springer), indexed in Scopus and Web of Science.
- from 2024 – present – Reviewer for INTERNATIONAL JOURNAL OF GEO-INFORMATION (Journal from the MDPI group, a pioneer in open-access scholarly publishing and based in Basel, Switzerland, operating through offices in China, Spain, Serbia, the United Kingdom, Japan, Romania, Canada, Poland, Singapore, Thailand), indexed in Scopus and Web of Science.
- from 2025 – present – Reviewer for Journal APPLIED SCIENCES (Journal from the MDPI group, a pioneer in open-access scholarly publishing and based in Basel, Switzerland, operating through offices in China, Spain, Serbia, the United Kingdom, Japan, Romania, Canada, Poland, Singapore, Thailand), indexed in Scopus and Web of Science.

Participation in events of substantial significance:
- A speaker (on-site) at the 86th International Conference of the American Society of Appraisers (ASA, USA), held in New Orleans (Louisiana), with a presentation on "The Beginning and Evolution of Valuation Around the World", representing the introductory (first) part in the Personal Property section (discipline) of the event, in which 622 professionals from all over the world are participating (including over 450 on-site and the rest online).
- A delegate (from CIAB’s side) in the Annual general meeting of the International Valuation Standards Council (IVSC), held in Paris (France).
- A seminar on the subject "Influence of Europe’s Regulations framework and European valuation standards" with Krzysztof Grzesik as a lecturer who is also president of TEGoVA.
- A representative (from CIAB’s side) in the workshop of the international "Valuation Vocational Training project", held in London (United Kingdom) – the project is also related to the Erasmus programme and is led by the Institute of Revenues Rating and Valuation /IRRV/ (United Kingdom).
- A webinar on the subject "The Price of Risk: Looking Backward and Forward" with Professor Dr Aswath Damodaran (New York University) as a lecturer organized by the Financial Executives International (FEI) San Francisco Bay Area Chapter (USA) and the American Society of Appraisers NorCal Chapter (USA).
- A virtual meeting with Professor Dr Aswath Damodaran (New York University) on the subject "A Conversation About Valuation and Market Uncertainty" organized by the American Society of Appraisers International Virtual Chapter (USA).
- A webinar on the subject "Topical Valuation Issues" with Professor Dr Aswath Damodaran (New York University) as a lecturer organized by the Business Valuation Institute UK (BVIUK).
- A webinar on the subject "Behind the Music: A Deep Dive Into Spotify’s Intrinsic Value-with Prof. Damodaran and Graham Antrobus" organized by the Business Valuation Institute UK (BVIUK); other regular webinars on the appraisal practice organized by the BVIUK, including with the participation of Roger Grabowski (co-author of Shannon Pratt in the book Cost of Capital: Applications and Examples).
- A webinar on the subject "The Key Differences Between Price vs. Value" with Professor Dr Aswath Damodaran (New York University) as a lecturer organized by Financial Executives International (FEI) San Francisco Bay Area Chapter (USA) and the American Society of Appraisers NorCal Chapter (USA); other regular webinars organized by the FEI San Francisco Bay Area Chapter.
- A webinar on the subject "Impact of COVID-19 to Global Business Valuation and Appraisal" organized by the American Society of Appraisers (ASA, USA) and the National Association of Certified Valuators and Analysts (NACVA, USA), as well as with the collaboration with Chartered Business Valuation Institute (CBV Institute, Canada), the Global Association of Certified Valuators and Analysts (GACVA), the European Association of Certified Valuators and Analysts (EACVA, Germany), the Royal Institution of Chartered Surveyors (RICS, UK).
- ASAI Symposium (event about the artificial intelligence) organized by the American Society of Appraisers (ASA, USA) and a panel discussion with Michelle Czekalski Bradley (Chair of the Appraisal Standards Board of the Appraisal Foundation, USA), Barry Shea (Past Chair of the Appraisal Standards Board of the Appraisal Foundation, USA), Charles Rosoff (President of the Appraisal Research Associates), Jay Fishman (Managing Director of the Financial Research Associates, author of books, and co-author of Shannon Pratt in the book Standards of Value: Theory and Applications) and others.
- A webinar on the subject "Kickin' it with the Appraisal Coach: 1-on-1 with Dustin Harris" organized by Anow (USA).
- A webinar on the subject "The Listing Side of the NAR Settlement" organized by TomFerry (USA), with Tom Ferry as a speaker and over 22000 other professionals.
- A webinar on the subject "Advanced Mediation Tips and the ABC's of Mediating" organized by the American Society of Appraisers (USA).
- Series of five webinars on the subjects "COVID19 and Valuation: Assessing the global outlook", "Valuation and the rise of alternative investments", "Operating leases under IFRS and U.S. GAAP - Valuation considerations", "Putting value at the core of ESG", "What will IBOR reform mean for valuation?" organized by the International Valuation Standards Council (IVSC, London); other regular webinars on the appraisal practice organized by the IVSC.
- A webinar on the subject "USPAP/IVS Compliance in the Appraisal Reports" organized by the American Society of Appraisers (USA); other regular webinars on the appraisal practice organized by the ASA, including with moderator Johnnie White - Chief Executive Officer of ASA, a webinar with Roger Grabowski, as well as well a webinar on the subject "Transforming Appraisals with ChatGPT: A Practical Guide".
- A webinar on the subject "Potential Areas of Change for the 2023 USPAP – Discussion Draft)" organized by the Appraisal Foundation (USA) /Authorized by the Congress as the Source of Appraisal Standards and Appraiser Qualifications/.
- A webinar on the subject "Introducing ANSI: New Requirements for Appraisers" presented by Richard Hagar and organized by the OREP – Organization of Real Estate Professionals (USA).
- A webinar on the subject "Emerging Topics in Appraisal Bias" organized by the American Society of Appraisers (ASA, USA), the Appraisal Institute (AI, USA), the American Society of Farm Managers and Rural Appraisers (ASFMRA, USA), the International Association of Assessing Officers (IAAO, USA), the Massachusetts Board of Real Estate Appraisers (MBREA, USA), the National Society of Real Estate Appraisers (NSREA, USA).
- A webinar on the subject "What you need to know about wine collecting, evaluation and appraising. Learn to identify "red flags" with fake bottles and understand value characteristics" with Bill Edgerton as a lecturer organized by the American Society of Appraisers NorCal Chapter (USA).
- A webinar on the subject "The Future of World's Valuation Profession" organized by the International Real Estate Federation FIABCI Thailand; other regular webinars on the appraisal practice organized by the FIABCI Thailand.
- A webinar on the subject "Cost of Capital in the Current Environment" organized by the leading independent provider of risk and financial advisory solutions Kroll (New York); оther regular webinars on the appraisal practice organized by Kroll.
- A large-scale webinar (with approximately 2000 participants) on the subject "State of the Profession: A Discussion with the Appraisal Foundation and Appraisal Subcommittee" organized by the American Society of Appraisers (ASA, USA), the Appraisal Institute (AI, USA), the American Society of Farm Managers and Rural Appraisers (ASFMRA, USA), the International Association of Assessing Officers (IAAO, USA), the Massachusetts Board of Real Estate Appraisers (MBREA, USA), the National Society of Real Estate Appraisers (NSREA, USA).
- A webinar on the subject "Beyond USPAP Confidentiality: Best practices for appraisers in a high-tech world" organized by the Appraisal Institute (AI, USA); оther regular webinars on the appraisal practice organized by the Appraisal Institute (AI, USA).
- Hearing on Appraisal Bias organized by the Appraisal Subcommittee (ASC, USA) with the participation in the event Marcia Fudge – 18th United States Secretary of Housing and Urban Development; Second Hearing on Appraisal Bias organized by the Appraisal Subcommittee (ASC, USA).
- Third national conference of the Independent Appraisers in Bulgaria on the theme of "Current Issues of the Valuation Practice" (participation as a lecturer) – participants in the event include TEGoVA’s president as well as valuers from RICS (United Kingdom).
- Eight national conference of the Independent Appraisers in Bulgaria on the theme of "Current Issues of the Valuation Practice" (participation as a lecturer) – as lecturers also participate Johnnie White (CEO of the American Society of Appraisers, ASA, USA), Krzysztof Grzesik (Chairman of the Board of Directors of the European Group of Valuers' Associations, TEGOVA), Plamen Danailov (Deputy Minister of Energy of the Republic of Bulgaria), Georgi Georgiev (Chairman of the Management Board of the Chamber of Independent Appraisers in Bulgaria), Assoc. Prof. Dr Manyu Moravenov (Member of the Board of Directors and CEO of Bulgarian Stock Exchange), Assoc. Prof. Dr Maria Stanimirova (University of Economics - Varna), Assoc. Prof. Dr Dragomir Stefanov (University of National and World Economy), Dr Kalina Kavaldjieva (University of National and World Economy), Raycho Dyankov (former Chairman of the Board of Directors and former CEO of FairPlay Properties REIT).
- Scientific conferences of the Polish Real Estate Scientific Society (TNN) organized in Katowice, Lodz and Krakow (Poland).
- International scientific conferences on the topic of "Property in the space", set up in Poznan, Bydgoszcz, and Kalisz (Poland) – participations as a lecturer.
- International scientific conference on the topic of "Real Estate: A Search for the Boundaries ", set up in Poznan (Poland) and dedicated to the 50th anniversary of establishing the Department of Investment and Real Estate at Poznan University of Economics and Business (Poland) – participation with a presentation.
- Head of summer practice of students studying at the University of Economics - Varna at the hosting institution St. Petersburg University of Engineering and Economics, Russia.
- International scientific conferences held in Saint Petersburg (Russia) – participation with publications.
- Working visit in relation to the United Arab Emirates’ Infrastructural development (Dubai, Abu Dabi, Sharjah).
- Working visit with the purpose of studying the real estate market in Barcelona (Spain).
- Working visits of Romania, Greece, Turkey, Cyprus, Austria, Hungary, Serbia, Croatia, Slovenia, Germany, and Belgium.
- 25th-anniversary Geographic Information Systems (GIS) conference, held in Perugia (Italy) and organized by the Croatian Information Technology Society – participation with a publication.
- Visiting lecturer at Poznan University of Economics and Business as well as at the Calisia University - Kalisz (Poland) – under the Erasmus+ programme.
- Lecturer (along with George Dogarescu, PhD, Romania) in the international seminar on the topic of "Return on investments in Rental Real Estate – apartments. Application of the method of extracting residual value during the valuation of the granted building lease", which was coordinated by the Chamber of Independent Appraisers in Bulgaria, Regional College – Varna; Lecturer in other courses of the Chamber of Independent Appraisers in Bulgaria (incl. lecturer and moderator of interactive learning on the topic "Actualities in the Valuation Practice", with more than 170 participants).
- Lecturer in courses of the National Real Estate Association.
- The first speaker at a business forum of the Landlords Association in Bulgaria ("How to turn your property into a profitable business – seven steps to success").

Participation in projects:
- Registered participation in two university scientific projects, annual participation in projects for the organization of scientific events, professional guild projects, an international project (managed by the Institute of Revenues, Rating and Valuation, United Kingdom) with the involvement of professional evaluation organizations from five EU Member States, an international project with entrepreneurial orientation (managed by the European Institute of Innovation & Technology, Germany) as well as many other projects with practical orientation funded under European programs.

Ivo Kostov on YouTube:
- 2025: The real estate market and the valuation of assets and businesses in the current conditions (Bulgarian language and partly English language).

- 2024 (full version): Valuations (appraisals), investments, yields (ROIs), banks and other current topics and issues related to the real estate market (participation in Premier Podcast Ep 3, Premier Media - YouTube, Premier Real Estate) (Bulgarian language).

- 2024 (short version): Valuations (appraisals), investments, yields (ROIs), banks and other current topics and issues related to the real estate market (participation in Premier Podcast Ep 3, Premier Media - YouTube, Premier Real Estate) (Bulgarian language).

- 2024: The real estate market and the valuation of assets and businesses in the current conditions (Bulgarian language and partly English language).

- 2023: The real estate market and the valuation of assets and businesses in an uncertain global environment (Bulgarian language and partly English language).

- 2022: The real estate market and the business valuation during a pandemic and global environment (Bulgarian language and partly English language).

- 2021: The real estate market and the business valuation during a pandemic (Bulgarian language and partly English language).

- Investment in real estate – what are the alternatives? (Bulgarian language).

- Presenting the Real Management and Valuation course for Erasmus+ students.

- Presenting the Business Valuation course for Erasmus+ students.

- Business Valuation (Appraisal) in Bulgaria, Business Valuer (Appraiser).
- Valuations (Appraisal) of Financial Assets and Institutions in Bulgaria, Valuer (Appraiser) of Financial Assets and Institutions.
- Real Estate (Property) Valuation (Appraisal) in Bulgaria, Real Estate (Property) Valuer (Appraiser).
- Valuation (Appraisal) of Machines and Equipment in Bulgaria, Valuer (Appraiser) of Machines and Equipment.

Information from mass media:
- SMOLYAN NEWS: For the first time, a Bulgarian valuer was a speaker at a conference in the USA (Bulgarian language).
- BTV: Secure investment: Significant growth of real estate transactions in Varna (increased demand leads to higher house prices) (Bulgarian language).
- BTV: Record housing construction in 2021 (Bulgarian language).
- NOVAVARNA: Will the rise in the main interest rate affect residential real estate prices? Read what the experts say (Bulgarian language).
- SMOLYAN NEWS: In the Dobruja area, the net income per 1/10 ha of owned agricultural land reaches levels above BGN 200, and the market price is above BGN 5000 per 1/10 ha (Bulgarian language).
- BULGARIAN NEWS AGENCY (BTA): University of Economics – Varna held a meeting-discussion dedicated to the real estate market (Bulgarian language).
- BULGARIAN NEWS AGENCY (BTA): The real estate market and business valuation during a pandemic (Bulgarian language).