Where UK fund portfolios overlap
Of the mapped company records, 323 appear in more than one portfolio. The table shows the strongest repeated pairs with at least three shared company numbers. Overlap can reflect co-investment, follow-on rounds, platform listings or source-history differences; verify the underlying fund pages before drawing a conclusion.
Companies mapped to the most portfolios
This is an identity-overlap view, not a popularity or quality ranking. Every row uses the exact company number in the curated snapshot.
Coverage and status across all mapped funds
Status uses the live daily projection when available and falls back to the dated portfolio snapshot. Raw active rates are strongly affected by portfolio age, so use the vintage-adjusted survival report before comparing them.
How to use this SEIS/EIS fund comparison
- Open each fund page and confirm the mapped companies are relevant to your question.
- Use exact Companies House numbers to distinguish similarly named businesses.
- Separate historic portfolio membership from today's legal status.
- Check portfolio vintage before comparing raw active rates.
- Use the fund's own current documents for mandate, eligibility, availability, fees and performance.
Browse all SEIS and EIS fund portfolio trackers · Read the source and date methodology