How we verify every row
The November 2026 edition of The Investor Database holds 4,178 startup investors. Every row was checked between 4 Nov 2026 and 9 Nov 2026 and keeps that date. 4,176 of 4,178 rows also keep the pages or filings we used.
Sources we use
- SEC filings: Form D, Form ADV and 13F: cited on 3,022 rows
- The ESMA register of EuVECA funds: cited on 149 rows
- HMRC scheme information for SEIS and EIS funds, and national venture capital association directories in Europe
- Each organization's own website: team, portfolio, pitch and contact pages
Sources we never use
Other investor databases, scraped contact lists, or sales-data tools whose terms ban resale.
Column by column
These are the columns of the paid file, grouped by where their values come from, with how many of the 4,178 rows have one. A blank cell means we found no public source, not that we guessed.
| Column | Where the value comes from | Rows that have it |
|---|---|---|
| Name, type and country File columns: Name, Type, Country, UK presence | The register or filing that lists the firm, checked against its own website. | 4,178 of 4,178 (100%) |
| City File columns: State or region, City | The office address on the filing, the register or the firm's own site. | 3,884 of 4,178 (93%) |
| Website | The firm's own site. We record whether it answered on the day we checked. | 3,111 of 4,178 (74%) |
| Description | Written by us from the firm's own website and filings. | 2,832 of 4,178 (68%) |
| Stages | Our research, from what the firm says about itself and the companies it has backed. Not SEC data. | 2,510 of 4,178 (60%) |
| Check size File column: Cheque size | Our research: recorded only where the firm states a range itself. Not SEC data. | 618 of 4,178 (15%) |
| Sectors | Our research, from the firm's stated focus and its portfolio. Not SEC data. | 2,865 of 4,178 (69%) |
| Backs and does not back File columns: Backs, Does not back | Our research. For 1,397 firms it is the mix we counted across the portfolio the firm publishes, for 422 it is the focus the firm states. | 1,777 of 4,178 (43%) |
| SEIS and EIS File columns: SEIS, EIS | UK rows only: HMRC scheme information and the fund's own documents. | 108 of 416 (26%) |
| How to pitch | The route the firm publishes on its own site: a pitch form, an application page or a contact page. | 869 of 4,178 (21%) |
| Firm email File columns: Firm email, Email domain check | The firm's own published contact address, never a personal address for a UK or EU person. We test that the domain has a mail server (1,283 pass); we do not test the mailbox. | 1,290 of 4,178 (31%) |
| Decision-makers | People the firm names on its own site, or a regulator filing names: 14,148 people across 3,520 rows. | 3,520 of 4,178 (84%) |
| The firm's own company page. | 1,707 of 4,178 (41%) | |
| Notable investments | The firm's portfolio page or its own announcements. | 2,185 of 4,178 (52%) |
| Fund size or AUM | The first figure on the row: 2,086 from SEC Form D, 539 from SEC Form ADV, 359 from the firm's own published figure. A row whose filing gives no figure is left blank. | 2,984 of 4,178 (71%) |
| Latest fund or filing | The date of the newest fund we hold for the firm. 1,332 firms are matched to a fund's SEC Form D filing, where it is the filing date; otherwise it is the date given by the source listed on the row. | 2,428 of 4,178 (58%) |
| Activity File columns: Activity, Last activity date, Activity type, Activity evidence | Our rule, with the evidence link kept on the row. Active (1,812): a dated new investment in the last 12 months, or a new fund in the last 24 months. Likely active (1,110): the latest fund is still inside its investment period, or new portfolio companies have appeared. Slowing (109): the latest evidence is 2 to 4 years old. Not yet confirmed (1,147): no dated evidence found, so never counted as active. | 3,031 of 4,178 (73%) |
| Sources and last verified File columns: Sources, Last verified | Every row keeps the date we last checked it. 4,176 of 4,178 keep the pages and filings we used; the other 2 have no source link on file. | 4,176 of 4,178 (over 99%) |
The file has 30 columns. Their headers, in order: Name, Type, Country, UK presence, State or region, City, Website, Description, Stages, Cheque size, Sectors, Backs, Does not back, SEIS, EIS, How to pitch, Firm email, Email domain check, Decision-makers, LinkedIn, Notable investments, Fund size or AUM, Latest fund or filing, Activity, Last activity date, Activity type, Activity evidence, Sources, Last verified, Profile page. Not in the table: Profile page (the link to the row's page on this site).
What each row records
The date we last checked it and, on 4,176 of 4,178 rows, the exact page or filing we used. Not every row has a filing: US venture firms start from SEC filings, while UK and European investors start from registers and their own websites. Filing date and fund size are SEC data; stage, sector and check size are our research. Decision-makers are only listed when the organization names them itself or a regulator does.
What is missing
1,067 rows have no website; 2,888 rows have no firm email; 658 rows have no named decision-maker. Each list page states its own fill rates, so you can see the gaps before you buy. We do not fill them from sources we cannot show you.
Personal data
For UK and EU people we publish names, roles and the firm's own published contact address, never personal email addresses. Anyone listed can ask us to correct or remove their details on the correction form.
Update cycle
The whole file is re-verified twice a year, and corrections reported to us are fixed within 5 working days. A purchase includes 12 months of updates.
Who runs this site: about The Investor Database. Questions about a row: hello@theinvestordatabase.com.