Janik Deimann — Founder, Deimann Com
Software entrepreneur and founder of Deimann Com GmbH. Co-founded and built Leantree into a recruiting company working for Vodafone, Unilever, and TUI, sold it in 2026, and started over with a thesis: a company can scale through software, automation and specialist expertise long before it needs to scale headcount.
The Path to Deimann Com
Janik Deimann is a software entrepreneur and the founder and CEO of Deimann Com GmbH. He started building digital products at 19, co-founded and grew the recruiting company Leantree to seven-figure annual revenue, and sold it in early 2026 to start again without the overhead of a conventional organization.
Deimann Com is the result: a privately held operating company that develops and runs B2B software products on autonomous AI systems rather than a traditional workforce. There are no outside investors, only the work and its compounding returns.
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Career Path
The most important professional milestones that have shaped me.
Self-Taught Marketing & First Revenue
- Promoting third-party (mostly digital) products through affiliate deals
- Learned performance marketing from scratch: paid ads, conversion funnels, traffic arbitrage
- Built campaigns end-to-end, from ad creative to checkout optimization
- Generated first real income without a team, office, or formal education
This phase built the instinct to figure things out on my own and measure everything.
Leading Teams & Managing Scale
- Ran performance marketing for a growing startup over two years
- Managed paid acquisition across multiple channels at scale
- Built and led a marketing team — first real leadership experience
This phase shifted the perspective from execution to systems: how teams work, how budgets scale, and where structure breaks.
Building a Real Company
- Co-founded Leantree — a recruiting service that took over the entire hiring function for small businesses and global market leaders alike
- Grew the company to ~15 people and multi-million annual revenue, consistently, over several years
- Full P&L responsibility: product, operations, sales, team, clients
- Sold the company in early 2026 to start over — on his own terms
This phase proved I could build, scale and run a real business, and it showed what came next: doing it again without the overhead.
Founder-led, with specialists on demand and systems doing the recurring work.
- Founded Deimann Com as a privately held operating company for B2B software products
- Replaced traditional teams with autonomous AI systems — from development to operations
- Launched Leadscraper, a GDPR-compliant B2B lead generation tool, as the first product
- Runs product, marketing, strategy, and infrastructure without a permanent team, supported by autonomous AI systems and specialists from around the world who bring the best know-how to each problem.
This phase is the thesis in practice: one person with the right architecture can build what used to require an entire organization.
Janik Deimann has worked with
Janik in the Press
“Thirty messages written by a human beat three thousand automatic variants.”
French B2B outlet on AI in sales: real value upstream in prospecting and prioritisation, clear limits in industrialised personalisation.
“Be honest with yourself about what you are genuinely good at, then build around that.”
Q&A with Janik Deimann on real-time data in B2B sales, adaptive targeting, and building a company around what you are genuinely good at.
“AI is strong when a task repeats, runs on a lot of data and needs to scale.”
Guest article by Janik Deimann on where AI actually helps in social media marketing, where it fails, and why human judgment stays in the loop.
“A good message sent to the wrong person is still a bad message.”
Spanish business outlet on B2B prospecting: why the contact base, not the copywriting, decides results, with Leadscraper as the reference.
“Copywriting can’t fix a targeting mistake.”
Guest essay by Janik Deimann for the French marketing outlet: B2B prospecting fails on the list, not on the copy, and a contact file is a perishable product.
“Instead of permanent staff, I work with the best experts in their respective fields.”
StartupMag interview on Leadscraper and on running a company with specialists on demand rather than a fixed team.
“Leadscraper goes a different way and searches for the data in real time with AI.”
Hamburg Startups profiles the founder and the Leadscraper launch: AI that researches B2B contacts from public sources in real time.
“The lever for more B2B revenue isn’t how many calls you make. It’s who you contact.”
Founder interview with StartupValley on Leadscraper and why AI agents that search in real time beat static B2B databases.
Deimann Com is a privately held software company from Hamburg that builds, acquires, and operates digital products on autonomous AI systems.
