An honest comparison for teams weighing OpenRegister (openregister.de) against Prometiam. These two products barely overlap. OpenRegister is a Germany-only company-data API built on the Handelsregister, Bundesanzeiger and Transparenzregister — 4M+ German companies, statutory UBO extracts, structured financial statements, and on-demand official documents. Prometiam is a six-country EU + UK registry API covering Spain, France, the UK, Ireland, Poland and Norway — and no German commercial register at all. If you need Germany, OpenRegister is the right tool and Prometiam is not a substitute.
Two places. First, corporate insolvency: Prometiam serves German corporate insolvency notices from the official Insolvenzbekanntmachungen (78,000+ servable corporate notices as at 28 July 2026, current to the previous day) even though it holds no German registry. Second, sanctions screening, which Prometiam includes and which is not part of OpenRegister's published product.
One schema over official registries — Spain (BORME), France (BODACC), the UK (Companies House, including PSC beneficial owners), Norway (Brønnøysundregistrene), plus Ireland (CRO) and Poland (KRS) at company level. Daily updates, corporate-event data, and sanctions plus US export-control screening across five sanctions lists (EU, UN, OFAC, UK OFSI, French gels) and 11 US export-control lists — 44,000+ active designations, refreshed daily. No German registry. PEP screening is beta and Spain-only. UBO is real only for the UK (PSC).
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Two derived signals on the Prometiam side, neither of them a rating: registry_compliance, which marks companies still on the register that stopped meeting their filing duties (Spain, the United Kingdom, Ireland and Norway), and public procurement — Spanish contract awards by supplier, buyer, tax id, CPV code and date, plus a beta score for the contracting body itself in Spain and France. Both are dated facts with their source, on the published price and in the free tier; a score is a prompt to look, never a finding of wrongdoing. Public-buyer risk · Procurement screening
| Prometiam | OpenRegister | |
|---|---|---|
| Registry coverage | ES, FR, GB, IE, PL, NO — no Germany | Germany only — 4M+ companies, all 16 states |
| Sources | BORME, BODACC, Companies House, CRO, KRS, Brønnøysundregistrene | Handelsregister, Bundesanzeiger, Transparenzregister |
| Sanctions screening | Included — 5 sanctions + 11 US export-control lists, 44K+ active | Not in the published product |
| UBO / beneficial owners | UK PSC only | Statutory Transparenzregister extracts (DE) |
| Financial statements | No | Yes — Bundesanzeiger, updated daily |
| Official documents | No — structured data only | Yes — extracts, shareholder lists, articles of association |
| Corporate insolvency | 9 markets: FR, FI, DE, GB, AT, NO, CH, US, NL | Germany, with full proceeding lifecycle |
| Pricing | Public — €0 / €9.99 / €29.99 / €99.99 / custom, per call | Public — credit-based, €0.01/credit overage |
| Free tier | 1,000 calls/month, no credit card | 500 credits/month, no credit card |
| MCP server | Yes — prometiam-risk-mcp, 28 tools | Yes — hosted + npm package |