Theodoros Fessas

Founder at QUEST HOLDINGS S.A.

Net worth: 525 M $ as of 30/05/2026

Utilities

Technology Services

Finance

Profile

Theodoros Dimitriou Fessas founded Quest Holdings SA in 1981, where he is working as Chairman.
Mr. Fessas also currently works at Amalia SA, as Chairman, Rainbow Advanced Technological Products & Services Ltd., as Chairman, Intercontinental International REIC, as Chairman from 2025, and various other companies.
Mr. Fessas also formerly worked at Sev Hellenic Federation of Enterprises, as Chairman from 2014 to 2020, International Chamber of Commerce Hellas, as Director, and Hellenic Corporate Governance Council, as Director.
Mr. Fessas received his graduate degree from the University of Birmingham and undergraduate degree from National Technical University of Athens.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
QUEST HOLDINGS SA 50.02%	30/12/2024	53,634,195 ( 50.02% )	478 M $	30/05/2026
BRIQ PROPERTIES REAL ESTATE INVESTMENT COMPANY 27.91%	31/01/2025	13,444,093 ( 27.91% )	48 M $	30/05/2026

Theodoros Fessas active positions

Companies	Position	Start
QUEST HOLDINGS S.A.	Founder	31/12/1980
BRIQ PROPERTIES REAL ESTATE INVESTMENT COMPANY	Chairman	27/09/2017
INTERCONTINENTAL INTERNATIONAL REAL ESTATE INVESTMENT COMPANY	Chairman	31/12/2024
Energy Markopoulou 2 S A	Director/Board Member	18/11/2018
Beta Synenergia Karvali S A	Director/Board Member	18/11/2018
Megalo Plai S A	Director/Board Member	-
Wind Zieben Energy A E	Director/Board Member	-
Kynigos SA Kynigos SA Alternative Power GenerationUtilities Owns photovoltaic power plant	Director/Board Member	22/07/2019
Clima Quest Sole Shareholder SA	Director/Board Member	-
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All active positions of Theodoros Fessas

Former positions of Theodoros Fessas

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See the detail of Theodoros Fessas's experience

Training of Theodoros Fessas

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Theodoros Fessas's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	33
Quest Holdings SA Quest Holdings SA Information Technology ServicesTechnology Services Provides information technology and telecommunications services	Technology Services
Amalia SA
UniSystems Information Technology Systems SA UniSystems Information Technology Systems SA Packaged SoftwareTechnology Services Develops software and provides systems integration services	Technology Services
Info-Quest Technologies SA Info-Quest Technologies SA Information Technology ServicesTechnology Services Provides information technology services	Technology Services
ACS International Transport & Facilities Commercial Co. SA ACS International Transport & Facilities Commercial Co. SA Air Freight/CouriersTransportation Provides parcel carrier services	Transportation
University of Birmingham University of Birmingham Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
National Technical University of Athens National Technical University of Athens Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Rainbow Advanced Technological Products & Services Ltd. Rainbow Advanced Technological Products & Services Ltd. Electronics DistributorsDistribution Services Provides computers and computer peripheral equipment and software	Distribution Services
Sev Hellenic Federation of Enterprises Sev Hellenic Federation of Enterprises Miscellaneous Commercial ServicesCommercial Services Operates as a business association	Commercial Services
Foundation for Economic & Industrial Research Foundation for Economic & Industrial Research Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment	Miscellaneous
Quest Energy SA Quest Energy SA Alternative Power GenerationUtilities Operates photovoltaic power stations	Utilities
IOBE Enterpreneurship Club
International Chamber of Commerce Hellas International Chamber of Commerce Hellas Miscellaneous Commercial ServicesCommercial Services Chamber of Commerce	Commercial Services
Hellenic Corporate Governance Council
Cardlink SA Cardlink SA Internet RetailRetail Trade Provides point-of-sales network services for electronic transactions with cards	Retail Trade
Kynigos SA Kynigos SA Alternative Power GenerationUtilities Owns photovoltaic power plant	Utilities
Intercontinental International REIC Intercontinental International REIC Real Estate Investment TrustsFinance Invests and leases commercial REIT, office and shopping properties	Finance
BriQ Properties REIC BriQ Properties REIC Real Estate Investment TrustsFinance Operates as a real estate investment company specializes in office, mixed, logistics and hotel properties	Finance
Alternative Energy Alpener SA Alternative Energy Alpener SA Alternative Energy Alpener SA operates as part of the Quest Holdings Group, a Greek conglomerate with diversified activities in information technology, postal and courier services, air conditioning, and green energy under the Quest Energy brand. The company is based in Kallithea, Greece. The Greek company contributes to the group's green energy segment and aligns with its strategic focus on sustainable and innovative business development.
Questonline SA
Isquare SA Isquare SA Electronics DistributorsDistribution Services Distributes apple brand products	Distribution Services
Megalo Plai S A
Xylades Energy S A Xylades Energy S A Electric UtilitiesUtilities Provides energy services	Utilities
Fos Energeia Kavala S A
Mylopotamos Fos 2 S A Mylopotamos Fos 2 S A Financial ConglomeratesFinance Provides investment services	Finance
Nuovo Kavala Phottopower S A Nuovo Kavala Phottopower S A Electric UtilitiesUtilities Provides electricity generation services	Utilities
Petrox Solar Power S A Petrox Solar Power S A Alternative Power GenerationUtilities Generates solar electric power	Utilities
Phottopower Evmirio Beta S A Phottopower Evmirio Beta S A Alternative Power GenerationUtilities Generates, distributes and transmits electric power	Utilities
Energeia Fotos Vita Xanthis S A
Energy Markopoulou 2 S A
Wind Zieben Energy A E
Beta Synenergia Karvali S A
Clima Quest Sole Shareholder SA