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SOSEI
Investors

Rebuilding the pre-AI web, one subscription at a time

Most of the web was written for a search engine that no longer works the way it used to. SOSEI takes an outdated website and rebuilds it — modern, fast, AI-discoverable, GDPR-ready — then keeps it current for as long as the customer stays. The product is live and paying customers are on it.

Why now

Discovery moved to assistants faster than any platform shift since mobile — and the websites underneath it didn't move at all.

300M+
ChatGPT weekly users

Search behaviour shifted in 18 months. People ask an assistant before they open a results page.

1B+
Google AI Overviews per day

Answers are assembled above the links. A site that AI can't read is a site that stops being cited.

~70%
Of the web is pre-AI legacy

WordPress, Wix and hand-built static HTML, written for a search engine that no longer works that way.

What's already shipped

Not a prototype and not a waitlist — a production platform that scrapes, rebuilds, hosts and maintains real customer sites today.

Live
Product in production

sosei.site is shipped and serving paying customers across multiple industries.

161
Industries supported

Design and copy are grounded in a per-industry catalog — from legal to e-commerce — not generic AI output.

~2 min
Average rebuild

An outdated URL in, a modern multi-page AI-ready site out — hosted, on the customer's own domain.

Subscription, on our own hosting

No one-time builds and no WordPress export. The site lives on our platform, which is what makes the ongoing relationship real rather than contractual.

The upgrade treadmill is the product

Algorithms, AI crawlers and regulation keep moving. We move the customer's site with them — replacing the costly redesign every 18 months.

AI chat editor, guardrails in code

Owners edit by chatting. Accessibility, contrast, consent and legal pages are enforced by the pipeline, so a customer cannot break compliance by editing.

Built lean, by design

A small core team plus AI tooling ships the whole product. Capital goes to growth rather than to an engineering headcount.

The market

Every one of those legacy sites is a rebuild waiting to happen — and a rebuild is the start of a subscription, not the end of a project.

$250B+
Global website market
Growing 10%+ annually
1.1B
Websites worldwide
70%+ need modernisation
45,000
Websites in Estonia
Phase-1 home market
Phase 1

Estonia

A 45,000-website home market, targeting 10% over two years — small enough to win outright, real enough to prove the motion.

Phase 2

EU expansion

International from month seven. The product is English-first and language-aware by construction, so a new market is distribution work, not a rebuild.

Phase 3

Global & partners

Agency partnerships and white-label hosting — the segments that turn one relationship into a portfolio of sites.

Pitch deck

13 slides — the whole story

Problem, solution, product, traction, roadmap, competition, market, go-to-market, unit economics, financials, team and the ask. It opens in the browser, runs from the keyboard, and exports to PDF from the toolbar.

  • 1Sosei
  • 2Problem
  • 3Solution
  • 4Products
  • 5Traction
  • 6Roadmap
  • 7Competition
  • 8Market
  • 9GTM
  • 10Unit Econ
  • 11Financials
  • 12Team
  • 13The Ask
Open the deck

The team

A lean core that has spent years on the web, SEO and AI — with experience from Wise, Pipedrive, LHV, Inbank, Eesti Energia, Change, Fleep, Western Union and Paxful.

Founded in Estonia

A country of 1.4 million people that has produced Skype, Wise, Bolt and Pipedrive — more unicorns per capita than anywhere else in Europe. It's a small market that forces you to build for the world from day one, and our team has worked inside two of those companies.

Meiko Neuman
Founder
LinkedIn
Martti Mäger
Co-Founder
LinkedIn
Madis Mark
Developer
LinkedIn

Finance, marketing, design and security are covered by a CFO and named partners — the Team slide in the deck has the full picture, including the five-year hiring plan. More about SOSEI.

Let's talk

We're raising to accelerate the AI editor, launch e-commerce support and push international growth. If that's a thesis you recognise, we'd like to hear from you.

This page and the linked deck are for information only. They are not an offer to sell, or a solicitation of an offer to buy, any security. Market figures are drawn from third-party sources, and any forward-looking statements — plans, projections and targets — are estimates that involve risk and may not be achieved.