We’re not another lead gen agency. We’re the last partner you’ll ever need to build your own growth machine.

At The Inhouse Accelerator, we help founders and sales teams who’ve been burned by agencies build client acquisition systems in-house — systems that consistently book 5+ clients a month and add 2–3x to your business’ valuation.

We’ve worked with over 100 B2B companies and agencies. Most came to us after trying ads, SEO, outsourced lead gen — and getting nowhere. What they needed wasn’t another service. They needed control. A system they own. One that runs without hand-holding, freelancers, or inflated retainers.

That’s where we come in.

Who’s Behind TIA?

Marcin Buryn – Co-Founder

Growth engineer and systems thinker. Marcin has helped agencies and tech companies scale outbound systems that consistently generate meetings, opportunities, and revenue. He’s built teams, campaigns, and strategies that just work — without the fluff.

Oliver Ingemann – Co-Founder

Sales strategist and operator. Oliver’s strength lies in turning systems into results. He’s obsessed with helping founders get out of the client-drought cycle and into predictable growth by combining copy, targeting, and sales development that converts.

Together, we built TIA to replace lead gen agencies — not compete with them.

We install the same outbound infrastructure the top agencies use for themselves — and we give it to you. So your team is finally in charge of growth. So you never have to rely on outside help again. So you build something that lasts.

What We Believe

• Growth should be in your control

• You should never be dependent on agencies or freelancers

• If it’s not generating clients and revenue, it’s not worth doing

• Speed matters – you can launch in days, not months

We don’t do fluff.
We don’t sell theory.
We build the engine with you — step by step.

Want to see how it works?