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Lein Digital

Who We Are

Lein Digital: Istanbul’s 360° Digital Marketing and GEO Agency

Türkiye’s first GEO agency. Since 2016, we have grown 100+ global brands.

Founder

Founded by Can Doğan in 2016

Today, Can Doğan combines more than 10 years of experience in international markets with new technology and creative strategy to give brands a stronger path to growth. He has run successful campaigns across Europe, the Middle East, the Americas and Oceania.

Born in Istanbul in 1996, Can Doğan is a graduate of Acıbadem University. Drawn to technology, communication and brand strategy from an early age, he was already making his mark internationally in his early twenties, earning certificates of achievement and industry certifications along the way.

“A campaign that doesn’t deliver results is not a success.”

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Who Is Lein Digital?

Lein Digital is a 360° digital marketing agency founded in Istanbul in 2016 by Can Doğan, and Türkiye’s first GEO (Generative Engine Optimization) agency. Working with more than 100 global brands, it delivers SEO, GEO, web design, social media management, Google and Meta advertising, influencer marketing and production under one roof.

Certifications and Partnerships: OpenAI, Anthropic, Google, Meta

Lein Digital is an official partner in the OpenAI Select Partner, Claude Partner Network (Anthropic), Google Partner, Meta Business Partner and Semrush Agency Partner programs. It is Türkiye’s first OpenAI Select Partner agency and the first agency in Türkiye to join Anthropic’s Claude Partner Network. Its total ad spend managed across Google and Meta exceeds $400 million.

Partner Programs

  • OpenAI Select Partner

    OpenAI Partner Network

  • Claude Partner Network

    Anthropic

  • Google Partner

    Google

  • Meta Business Partner

    Meta

  • Lein Digital Semrush Agency Partner badge

    Semrush Agency Partner

    View Certificate

Ad Platforms We Manage

  • Google Ads
  • Meta Ads
  • TikTok for Business
  • ChatGPT Ads

Lein Digital’s Vision

Lein Digital’s vision is to become Türkiye’s largest digital holding and to build a strong technology group that expands from Türkiye to the world, through the brands it develops in artificial intelligence, technology, media, digital marketing, education and next-generation digital products.

The brands operating under the Lein Digital umbrella, Yapay Zeka Firması, İstanbul Reklam Ajansı, GEO Akademi, Sheltron, GEO Builder, House of Lein, AI Haber Ajansı and En İyi Yapay Zeka, and the new ventures to be launched in the future work in different fields, but they grow around a shared vision:

To turn ideas, technologies, brands and business models born in Türkiye into businesses that compete on a global scale.

Türkiye is our starting point, but our target market is the world.

We believe that in the coming years artificial intelligence will become one of the core infrastructures of business, media, communication, marketing, software and everyday life. That is why artificial intelligence sits at the center of the investments Lein Digital makes and the ventures it develops.

Our aim is not only to be a holding that follows technological transformation, but to be a group that creates new categories, develops new business models, exports technology and know-how to global markets and sets the standards in the fields where it operates.

Our long-term goal is to turn Lein Digital into a technology holding that comes out of Türkiye, is recognized worldwide in artificial intelligence and digital technologies, and produces brands that lead their own categories.

Lein Digital’s Mission

Lein Digital’s mission, with a focus on artificial intelligence and digital technologies, is to develop scalable brands, products, platforms and companies, grow them in Türkiye and take them to global markets.

Every brand under the Lein Digital umbrella solves a specific problem, serves a specific market and specializes in its own field. But all of them share the same working principle:

See the right technology early, move fast, solve a real need and turn it into a sustainable business model.

To that end, our mission is to:

  • develop new products and technologies centered on artificial intelligence,
  • invest in new digital business models,
  • build strong and independent brands,
  • lead companies’ digital and AI transformation,
  • take the technology and expertise developed in Türkiye to global markets,
  • bring media, software, education, marketing and technology together in a shared ecosystem,
  • produce work that raises the industry standard in the fields where we operate.

For Lein Digital, growth is not just about increasing the number of companies.

For us, real growth means creating new markets, developing products used on a global scale, building brands that lead their fields and taking a technology group from Türkiye to the world stage.

Artificial intelligence is not one department of this group; it is the center of Lein Digital’s future strategy.

Lein Digital’s Journey: 2016 to Today

  1. 2016

    Lein Digital Is Founded

    Founded in Istanbul as a digital marketing agency

  2. 2017

    First International Campaign

    Expanded into European and Middle Eastern markets

  3. 2019

    Yapay Zeka Firması

    Launched Yapay Zeka Firması for AI solutions and automation

  4. 2020

    Medical Tourism Breakthrough

    Began delivering multilingual patient acquisition for clinics in the global medical tourism market

  5. 2023

    GEO Pioneer in Türkiye

    Became the first agency in Türkiye to practice GEO systematically

  6. 2025

    İstanbul Reklam Ajansı

    Launched İstanbul Reklam Ajansı, focused on performance and creative advertising

  7. 2026

    GEO Akademi and AI Merkezi

    Launched GEO Akademi for GEO training, and AI Merkezi for AI news and trend reports

  8. Today

    100+ Global Brands

    Sustainable growth with more than 100 global brands

The Numbers Behind Lein Digital

Global brands
100+
Years of experience
10+
Specialists
25+
Industries
13
ROAS
4.2x
Client retention
94%

The Lein Digital Team: 25+ Digital Marketing Specialists

Our specialist departments build 360° digital solutions for your brand.

  • SEO & GEO Team

    We move brands up in search engines and AI platforms with organic growth, technical SEO and AI visibility strategy.
  • Advertising Team

    We reach your audience as efficiently as possible with Google Ads, Meta Ads and programmatic campaigns.
  • Creative & Production Team

    We amplify your brand’s voice with video production, social media content and brand communication.
  • Technology & Web Team

    We prepare your digital infrastructure for the future with modern web technology, automation and data analysis.

Our Offices: Etiler and Ataşehir, Istanbul

  • Etiler Office

    Akat Mah. Nispetiye Cad. Kervan Apt. No: 37 D: 8, 34335 Beşiktaş/İstanbul
  • Ataşehir Office

    Küçükbakkalköy Mah. Nergiz Sk. No: 12/24, 34750 Ataşehir/İstanbul

Let’s Grow Together

Ready to Be the Brand AI Recommends?

Tell us where you want to grow. In a free strategy call, we’ll show you where your brand stands in search, ads and AI answers, and what to fix first.