About
Two Consultants, One Clear Brief
We started DOUBL. after a decade of leading complex, high-stakes work for Greece's biggest brands. We don't take on small neighbourhood jobs — we help serious marketing teams solve hard measurement and growth problems, and we leave them more capable than they were before us.
Markos leads media & performance at enterprise scale. Most recently Head of Media & Digital Performance at PeopleCert, after running the Biddable Performance Hub for Toyota & Lexus Europe (€25M+ in annual media) and four years as Director of Performance Marketing at Ogilvy Greece, where he was also internal Training Lead for Web Analytics & Tagging. A Google Partners Digital Champion in Smart Bidding, he is a regular instructor at Athens University of Economics and Business (AUEB) and the University of Piraeus (UNIPI), and has trained agency and brand teams across Greece.
Vasilis is Growth & Innovation Lead at Ogilvy One, after leading Ogilvy Greece's performance, analytics and SEO team as Performance Marketing Director. He builds the experimentation frameworks, GA4/GTM implementations and reporting systems behind some of Greece's largest eshops and brands. Featured in the BOUSSIAS Digital Marketing 100 Powerlist 2025, he also teaches seminars and training programmes for agencies and universities (including AUEB and UNIPI).
How We Work
- 1.Diagnose first. We audit before we act, so recommendations are grounded in reality.
- 2.Build for decisions. Every report, model, and tag is designed to change how the team spends money.
- 3.Transfer the skill. We leave your team better equipped, not dependent on us.
Where We've Worked
Between us we've spent 10+ years inside top-tier clients — leading measurement, performance and growth for large retailers, airlines, eshops and financial services in Greece and Cyprus. We have worked client-side, agency-side and as independent advisors, always on complex projects with real P&L impact.
Work with usCertifications & Platform Credentials
Verified by the Platforms You Run On
Our team holds current platform certifications across the full paid and measurement stack. We don't just know the theory — we are certified by the same platforms that manage your budgets.
Google Ads
Certified professionals across Search, Display, Video, Shopping and Performance Max.
Google Analytics 4
Certified measurement specialists in GA4 implementation, reporting and advanced analysis.
Meta Blueprint
Blueprint-certified individuals in Meta advertising, measurement and business messaging.
TikTok for Business
Certified in TikTok Ads strategy, creative best practice and campaign optimisation.