# Björn Jopen (slim)

> Björn Jopen is original co-founder; historical pre-acquisition team. registercheck.de API on Anchor Terminal, with grades, an about and public profiles.

- Full: https://www.anchorterminal.com/people/bjorn-jopen/index.md (~1,150 tokens) · this version ~930 tokens · JSON https://www.anchorterminal.com/people/bjorn-jopen/index.json · canonical https://www.anchorterminal.com/people/bjorn-jopen/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Original co-founder; historical pre-acquisition team.

- LinkedIn: https://de.linkedin.com/in/bjoernjopen/en

## What Björn builds

- [registercheck.de API](https://www.anchorterminal.com/tools/registercheck.md), graded D, 52.4/100, in Data providers. Credit-priced REST API and remote MCP server for the German commercial register, with company records, managing directors, shareholders, ownership trees, filed accounts, register events and change monitoring. Run by Openlaw GmbH since September 2026. Original co-founder; historical pre-acquisition team, researched 2026-10-28.

## Works with

- [Alexander Sporenberg](https://www.anchorterminal.com/people/alexander-sporenberg/), Founder and CEO, Openlaw
- [David Korn](https://www.anchorterminal.com/people/david-korn/), Original co-founder; historical pre-acquisition team
- [Dominik Scherm](https://www.anchorterminal.com/people/dominik-scherm/), Original co-founder; historical pre-acquisition team
- [Felix Gerlach](https://www.anchorterminal.com/people/felix-gerlach/), Co-founder, Openlaw
- [Jackson Ly](https://www.anchorterminal.com/people/jackson-ly/), Lead engineer, Registercheck, since September 2026
- [Robert Schröder](https://www.anchorterminal.com/people/robert-schroder/), Original co-founder; historical pre-acquisition team

## Backed by

- [Y Combinator](https://www.anchorterminal.com/investors/y-combinator/)
- [Y Ventures](https://www.anchorterminal.com/investors/y-ventures/)
- [Moonfire Ventures](https://www.anchorterminal.com/investors/moonfire-ventures/)
- [Zeno Ventures](https://www.anchorterminal.com/investors/zeno-ventures/)
- [Combination Ventures](https://www.anchorterminal.com/investors/combination-ventures/)
- [Orange Collective](https://www.anchorterminal.com/investors/orange-collective/)

## Questions

### Who is Björn Jopen?

Björn Jopen is original co-founder; historical pre-acquisition team.

### What does Openlaw GmbH make?

Anchor Terminal lists registercheck.de API from Openlaw GmbH.

### Who has invested in Openlaw GmbH?

The sources our research read name Y Combinator, Y Ventures, Moonfire Ventures, Zeno Ventures, Combination Ventures and Orange Collective.

### How are Björn's tools graded?

registercheck.de API is graded D, 52.4 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://jacksonly.xyz/about
- https://jacksonly.xyz/projects/registercheck
- https://www.linkedin.com/in/jackson-ly
- https://x.com/jacksnxly
- https://x.com/FelixGerlach
- https://www.registercheck.de/unternehmen/ueber-uns
- https://de.linkedin.com/posts/bjoernjopen_%F0%9D%97%AA%F0%9D%97%B2-%F0%9D%97%AE%F0%9D%97%BF%F0%9D%97%B2-%F0%9D%97%B9%F0%9D%97%B6%F0%9D%98%83%F0%9D%97%B2-und-schon-mittendrin-activity-7344243778066571264-icJc
- https://www.linkedin.com/in/dominik-thomas-scherm
- https://www.linkedin.com/in/korn-david
- https://de.linkedin.com/in/dasistrobert
- https://de.linkedin.com/in/bjoernjopen/en
- https://www.linkedin.com/company/registercheck
- https://www.registercheck.de/
- https://www.registercheck.de/support/kontakt

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched.