Gediminas Blažys
Gediminas Blažys
Vilnius, Lithuania

The Short Version

I'm an independent programmatic advertising consultant with over 12 years of experience in digital media and ad tech. I've been a CEO, a Media Director, an ad ops specialist, and an IAB board member. I've worked with publishers, agencies, and advertisers—on both the sell-side and buy-side.

Today, I help publishers understand what's really happening with their ad stack. No revenue shares. No hidden agendas. Just honest analysis and actionable recommendations.


The Full Story

From Ad Ops to CEO

I started in 2013 as an Ad Operations Specialist at Digital Matter, a regional ad tech company connecting publishers with media agencies and advertisers. Over the next 11 years, I worked my way up through Media Project Manager, Media Director, and finally CEO.

As Media Director, I led monetization strategy for our entire publisher portfolio. I designed and implemented header bidding architecture, introduced our first supply path optimization (SPO) framework, and managed pricing and packaging for premium display and video inventory. This is where I learned how the money actually flows—and where it gets lost.

Scaling as CEO

In 2018, I became CEO. Over the next six years, I led a full-scale transformation:

  • Scaled revenue from €3.9M to €8.1M
  • Grew EBITDA from €247K to €559K
  • Managed a 30+ person team across ad ops, tech, sales, and analytics
  • Oversaw 200+ publisher relationships and major agency partnerships
  • Developed a proprietary bid analytics platform processing billions of data points
  • Full P&L responsibility for the main company plus two subsidiaries

I navigated GDPR, COVID, and cookie deprecation while maintaining revenue growth. I introduced OKRs, restructured teams, led a company rebrand, and deployed a €220K data management platform across four companies with 600+ employees.

Shaping the Industry

In 2022, I co-founded IAB Baltics—the regional branch of the global IAB network representing publishers, agencies, and ad tech players across Lithuania, Latvia, and Estonia. As a founding board member, I:

  • Helped define the association's structure, mission, and stakeholder outreach
  • Initiated adoption of best practices from leading IAB organizations (e.g., IAB UK's Gold Standard)
  • Contributed thought leadership through articles, public panels, and conference lectures

Why I Consult

After 11 years on the inside, I know how ad networks structure their margins. I know what agencies don't tell their clients. I know where the money leaks and why nobody mentions it.

Now I work independently—without revenue shares, without partnerships to protect, without any reason to tell you anything except the truth. When I audit your setup, the only person I'm working for is you.


How I Work

Data Over Opinions

Every recommendation is backed by numbers. If I can't prove it, I won't say it.

Direct Communication

No jargon for jargon's sake. I explain things clearly, even when the news is bad.

No Conflicts

I don't take referral fees. I don't have "preferred partners." My only incentive is your success.

Actionable Output

You'll get specific recommendations you can implement immediately—not vague suggestions.


Background

2024–Present
Independent Consultant

Strategy & programmatic consulting for publishers and agencies

2022–2024
IAB Baltics · Founding Board Member

Co-founded regional IAB chapter for the Baltic states

2018–2024
Digital Matter · CEO

Scaled revenue 2x, led 30+ person team, full P&L responsibility

2014–2018
Digital Matter · Media Director

Led monetization strategy, implemented header bidding, introduced SPO

2013–2014
Digital Matter · Ad Ops → Project Manager

Started in ad operations, learned the technical foundations

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