Country ranking

Top B2B Companies in Greece

TrustList ranks 195 companies in Greece across 7 categories. The biggest lists are IT service providers (81), IT product companies (41) and digital marketing companies (25). Each list below is the top of its full ranking, ordered by rating, review volume and listing quality; no one pays for a position.

The businesses here list work in Athens. 192 of them have written a profile you can read before you get in touch.

What to check before you hire in Greece

Which legal entity signs, and which country's courts the contract names, since the office you met may not be the company on the invoice
Where your data will actually be stored and processed, and whether that is allowed under the rules you are bound by
Who owns the work: intellectual property assignment has to be valid under the law of the supplier's country, not only yours
The overlap in working hours you will really get, and who is reachable when something breaks at your end of the day
The currency you are billed in, who carries the exchange-rate movement, and what the payment fees add
References from clients in your own market, not only in the supplier's: the ones who had to manage the distance
How the relationship ends: notice, handover of code, credentials and data, and what happens to staff assigned to you

Each section below is the top of that category's own ranking for Greece, so the two pages can never disagree. At the top of the largest of them, IT service providers, right now: Existanze #connectingdots, Atcom S.A. and Eworx S.A..

Top IT service providers in Greece

Top 5 of 81 ranked

See all 81

Existanze #connectingdots
Custom Software Development · Software Development · Web Development
Existanze #connectingdots is an information technology company founded in 2005. It builds bespoke software and links separate business systems together for Greek businesses.
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Why #1: Address in Greece · Founded 2005 · ISO 27001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Atcom S.A.
Software Development · Web Development · IT Services
Atcom S.A. is a Greek digital business company founded in 2000. It provides consulting and builds web projects that join technology with creative work.
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Why #2: Based in Greece · Founded 2000 · Team of 120+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Eworx S.A.
Mobile App Development · Software Development · Web Development
Eworx S.A. is a digital agency headquartered in Athens, working with clients worldwide.
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Why #3: Based in Athens, Greece · Founded 2001 · Team of 40+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Pavla S.A.
Mobile App Development · Software Development · Web Development
Pavla S.A. is a Greek company that began in 1965 supplying ticketing and validation systems.
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Why #4: Based in Greece · Founded 1965, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Info Quest Technologies
Software Development · Web Development · IT Services
Info Quest Technologies is a Greek company, part of the Quest company family, that brings information technology and communications products to the Greek market.
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Why #5: Based in Greece · In business 39+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top IT product companies in Greece

Top 5 of 41 ranked

See all 41

ANIXE
Software Development · Web Development · IT Services · Also in Poland
Travel technology company building booking engines and hotel distribution systems for airlines, tour operators and agencies
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Why #1: Based in Wrocław, Poland, and Athens, Greece · Founded 1997 · Client numbers stated on its own website, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Epsilon Net
Software Development · Web Development · IT Services
Epsilon Net is a Greek group of companies founded in 1999. It works in business software, digital content and vocational education.
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Why #2: Based in Athens and Thessaloniki · Founded 1999 · Team of 1,700+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
PS
Profile Software
Profile Software, founded in 1990, builds systems for banks, wealth and asset managers and other financial institutions.
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Why #3: Based in Athens, Greece · Founded 1990, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Relational SA
Software Development · Web Development · IT Services
Relational SA is an international software developer started in Athens in 1995.
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Why #4: Based in Athens, Greece · Founded 1995, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
e-On Integration S.A.
Software Development · Web Development · IT Services
e-On Integration S.A. develops web products that help companies automate business processes. It was founded in 1999.
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Why #5: Based in Athens, Greece · Founded 1999, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top digital marketing companies in Greece

Top 5 of 25 ranked

See all 25

Globe One Digital
Consumer Products & Services · Hospitality & Leisure · Financial Services
Globe One Digital runs digital marketing campaigns and business consultancy from offices listed in Athens and Bucharest.
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Why #1: Based in Athens and Bucharest · In business 25+ years · Google partner, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
DigitalUp
Social Media Marketing · Software Development · Web Development
DigitalUp is a digital marketing company in Athens, founded in 2014. It builds websites and online shops for clients and then promotes them.
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Why #2: Based in Athens, Greece · Founded 2014 · Google partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Hellenic Research House
Hellenic Research House is a market and public opinion research company based in Athens.
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Why #3: Based in Athens, Greece · Founded 1992, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Green Olive Films
Production
Green Olive Films is a production services company with offices in Athens and Nicosia.
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Why #4: Based in Athens, Greece and Nicosia, Cyprus · Founded 1996, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
eproductions
Search Engine Optimization · Advertising & Marketing · Hospitality & Leisure
eproductions is a web development and digital marketing agency run from Athens, Greece.
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Why #5: Based in Athens, Greece · Founded 1997, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Top advertising companies in Greece

Top 5 of 19 ranked

See all 19

Global Touch
Global Touch runs digital marketing for businesses from its base in Athens, Greece.
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Why #1: Based in Athens, Greece · Founded 2015 · ISO 9001, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
SH
Solid Havas
Social Media Marketing · Search Engine Optimization · Software Development
Solid Havas is an independent communication agency in Greece that offers advertising, public relations, digital, below-the-line and corporate social responsibility services.
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Why #2: Based in Greece · Founded 1991 · Team of 70+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
GBC
GBC trades today as Globus Branding Co, a design studio centred on packaging and brand identity.
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Why #3: Based in 4 Anapafseos ave., Vrilissia, A1, GR, 152 38 · In business 30+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Blissprojects
Non Profit · eCommerce · Video · Also in Bahrain, Saudi Arabia
Independent creative agency in Athens handling branding, packaging, web design and digital marketing for clients in 18 countries
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Why #4: Based in Athens, Greece · Founded 2006, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Humble Digital Agency
Social Media Marketing · Mobile App Development · Search Engine Optimization
Humble Digital Agency, known simply as Humble, is a creative agency working across digital, social media and public relations.
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Why #5: Based in Agia Paraskevi, Attica · Google partner, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Top software development companies in Greece

Top 5 of 12 ranked

See all 12

Software Competitiveness International S.A.
Software Development · Web Development · IT Services
Software Competitiveness International S.A., known as SoftCom International, is a software company based in Greece, founded in 2010.
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Why #1: Based in Greece, with offices in Athens and Crete · Founded 2010 · ISO 9001, ISO 27001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Orco Organization & Computing SA
Software Development · Web Development · UI/UX Design
Orco Organization & Computing SA describes itself as the oldest software development company in northern Greece.
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Why #2: Based in northern Greece · In business 40+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
SL
Synnous Ltd
Software Development · Web Development · IT Services · Also in United Kingdom
Synnous Ltd is a product development and engineering company working from London and Athens.
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Why #3: Based in London, UK, and Athens, Greece · Founded 2008, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Dot by Dot Business & Technology Solutions
Software Development · Web Development · IT Services
Dot by Dot Business & Technology Solutions is a software house based in Athens, Greece.
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Why #4: Based in Athens, Greece · Founded 2012, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Indev Software SA
Custom Software Development · Software Development · Web Development
Indev Software SA develops enterprise software for banks, fintech firms and multinational companies.
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On record: In business 20+ years · ISO 27001, professional accreditation, as stated on its own website, read 5 Oct 2026

Top web development agencies in Greece

Top 5 of 10 ranked

See all 10

deZitech dynamics
Software Development · Web Development · IT Services
deZitech dynamics is a web design and development agency in Greece, with offices in Athens and Thessaloniki.
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Why #1: Based in Greece, with offices in Athens and Thessaloniki · Founded 2004, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
itBiz Digital Agency
Software Development · Web Development · IT Services
itBiz Digital Agency is an independent web development agency headquartered in Larissa, Greece. It works with clients internationally and has been active since 2005.
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Why #2: Based in Larissa, Greece · Founded 2005, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
9AM Labs
Social Media Marketing · Software Development · Web Development
9AM Labs is a boutique web agency in Athens. It designs and builds websites and web applications for businesses of different sizes, and says it has done so for about 20 years.
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Why #3: Based in Athens · In business 20+ years · Boutique, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
PSDgator
Software Development · Web Development · IT Services
PSDgator is a small web development business, active since 2007, that now concentrates on WooCommerce and WordPress work for digital agencies.
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Why #4: Based in Aeroporias 1, Thermi, Thessaloniki, GR · Founded 2007, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Stonewave
Software Development · Web Development · IT Services
Stonewave is a software development company with many years of experience in websites, online shops and applications.
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On record: Founded 2010, as stated on its own website, read 5 Oct 2026

Top ecommerce development companies in Greece

Top 5 of 7 ranked

See all 7

gladd
Software Development · Web Development · IT Services
gladd is a web development company that specialises in e-commerce solutions. It also builds web applications and Android apps for its clients.
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ArtAbout eCommerce Agency
Social Media Marketing · Search Engine Optimization · Software Development
ArtAbout is an ecommerce agency based in Thessaloniki, Greece. It builds online shops and websites, designs company identities and promotes businesses through digital channels.
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Lighthouse SA
Software Development · IT Services · E-Commerce Development
Lighthouse SA delivers e-commerce platforms together with growth consulting and performance marketing. It was formed in 2000.
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DWHITE
Mobile App Development · Software Development · Web Development
DWHITE is an IT company based in Thessaloniki, Greece. It specialises in custom online shops for consumers and for trade buyers.
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MageGuide
Custom Software Development · Software Development · UI/UX Design
MageGuide is an Athens-based technology company, founded in 2016, that builds services around the Magento platform.
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For vendors

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How is this ranking worked out?

A position here is earned, never bought. It is worked out from what a firm publishes and what has been verified about it:

Profile completeness: the details a buyer needs to judge a firm: what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Be clear about the third one: client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

No firm can pay for a position. Sponsored listings are labelled and shown apart from this list. How rankings work

Where else can I look in Greece?

Every category ranked here has its own full list: IT service providers (80), IT product companies (37) and digital marketing companies (23). Or compare countries from the country index.

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