Finding the right digital marketing agency can be tricky, especially when so many seem to offer the same services and promise similar results. You want to know that your money is being well spent and that the people you’re working with genuinely understand your business.
Some agencies are better suited to e-commerce businesses, while others specialise in SEO, paid advertising or social media. It really comes down to what you’re trying to achieve.
To help reduce your options, we’ve picked five digital marketing agencies worth considering in Greece in 2026, listed in no particular order. Google ratings were checked in October 2026.
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Subscribe1) Opium Works
Opium Works is a full-service digital agency founded in 2011 and based in Nicosia, Cyprus and Athens, Greece. The agency has worked with brands including EY Cyprus, Weetabix, Pizza Hut Cyprus, Pralina and Nicosia Race Club, covering digital marketing, creative work, branding and web development.
It has also received recognition at the Digital Marketing Awards in Cyprus, including a gold and bronze award in 2021. Its combination of creative, marketing and development services allows businesses to cover several areas of their digital presence with one agency.
Its services include performance marketing, SEO, social media marketing, content creation, branding, web development, UI/UX design, video production and multimedia. Opium Works also manages paid campaigns across Google, Facebook, Instagram and YouTube, with its portfolio covering businesses in different industries.
Opium Works has a 4.5-star Google rating. As it is based in Cyprus, it may suit businesses looking for a regional agency with experience across Cyprus and international markets.
2) DMSS Marketing Agency
DMSS Marketing Agency is an Athens-based digital marketing agency founded by Michalis Botas. The agency has particular experience in healthcare, hospitality and pharmaceuticals, while its wider client work covers different industries.
DMSS also focuses heavily on search visibility, with services now extending into AI SEO, GEO, and AEO. The agency reports more than 17 years of medical marketing experience, over 200 active clients and more than 10,000 first-page Google keyword rankings across its projects.
Its services include SEO, Google Ads, performance marketing, social media, influencer marketing, email marketing, content creation, website development and e-commerce. It also provides specialist marketing for medical businesses and hotels, covering search optimisation, online advertising, reputation management, digital PR and content.
DMSS Marketing Agency has a 5-star Google rating. Its focus on search, paid advertising and specialist industry marketing makes it worth considering for businesses with specific digital acquisition goals.
3) Relevance Digital Agency
Relevance Digital Agency was founded in 2013 and has offices in Athens and Thessaloniki. The agency has grown to more than 190 specialists and reports working with over 300 clients across more than 20 countries.
Its portfolio includes GAP, Coral, BOX NOW and Novibet, while its award history includes Google, TikTok and industry recognition. In 2025, Relevance won 13 awards and the Grand Winner title at the PEAK Awards, along with Google’s Data Innovation Award. Its combination of data, performance marketing and creative work sets it apart.
Relevance provides performance marketing, SEO, business intelligence and data analytics, creative activation, CRM and email marketing, and digital transformation services. It also partners with Google, Microsoft Advertising and TikTok, and says it holds all six Google Marketing Platform certifications.
Relevance Digital Agency has a 4.9-star Google rating. Its platform partnerships, international client work and award record may suit larger businesses looking for a data-led marketing approach.
4) Kovald
Kovald is an Athens-based digital agency that combines marketing services with business consulting and strategy. Established in 2015, the agency has worked with brands including Beyond Meat, Toyo Tires, Panathinaikos BC, TÜV Hellas, EKO and Mediterranean College.
Kovald was also recognised by Ad World Masters in 2022, receiving a Bronze Medal among digital marketing agencies in Greece. Its consulting-led approach sets it apart from agencies focused mainly on individual marketing channels.
Its services cover digital consulting, business development, sales growth, brand awareness, marketing strategy, and digital transformation. The agency works with established companies and startups, helping businesses develop digital plans and connect online activity with wider business goals.
Kovald has a 4.9-star Google rating. Its combination of consulting and digital marketing could suit businesses reviewing their wider digital strategy.
5) Lithos Digital
Lithos Digital is an Athens-based digital marketing agency with over 15 years of experience and offices in Greece, Spain, and the UK. The agency has received several industry awards, including Digital Marketing Firm of the Year at the Greece Prestige Awards in 2022/23 and Best Global SEO Campaign at the Netty Awards in 2024.
It was also named SEO Agency of the Year at the London & South East Prestige Awards for 2024/25 and 2025/26, before receiving the Legacy Award for SEO & GEO Agency of the Year in 2026/27.
Lithos Digital offers SEO, paid advertising, website design and development, branding, content marketing, social media management, and AI consultancy. One of its key specialities is Generative Engine Optimisation (GEO), which focuses on helping brands appear in AI-powered search results.
Lithos Digital has a 4.9-star Google rating. Its experience in SEO and AI search makes it a good option for businesses that want to rank higher on Google and get noticed in AI search results.
Top 5 Digital Marketing Agencies Comparison
The table below gives you a quick comparison of the five agencies, including their location, main areas of expertise, and Google rating.
| # | Agency | Location | Main Specialties | Google Rating |
| 1 | Opium Works | Nicosia, Cyprus | Digital marketing, performance marketing, SEO, creative, web development | 4.5 |
| 2 | DMSS Marketing Agency | Athens, Greece | SEO, Google Ads, performance marketing, medical and hotel marketing | 5.0 |
| 3 | Relevance Digital Agency | Athens & Thessaloniki, Greece | Performance marketing, SEO, data analytics, creative, digital transformation | 4.9 |
| 4 | Kovald | Athens, Greece | Digital consulting, strategy, business development, marketing | 4.9 |
| 5 | Lithos Digital | Athens, Greece | SEO, Google Ads, web development, branding, content marketing, AI search visibility | 4.9 |
Best Digital Marketing Agencies in Greece (2026)
There are plenty of digital marketing agencies to choose from in Greece, but these five offer different services and areas of expertise. DMSS focuses on SEO, advertising, and AI search, while Relevance combines performance marketing with data, creative work, and platform partnerships.
Kovald takes a consultancy-led approach, while Lithos Digital specialises in SEO, web development, and AI search visibility. Opium Works offers a broad range of digital services, including performance marketing, social media, SEO, branding, and web development.
Compare each agency’s services and previous work to find a team that understands your needs and can help you reach your targets.
