Ad tech Series A investors
This slice of our investor database holds 232 Ad tech Series A investors. They sit in 66 cities across 14 countries, most of them in San Francisco (45), New York (43) and Menlo Park (20). The sectors they back most often here are Ad tech (232), SaaS (205) and Marketing tech (190). The median firm in this slice has made 115 investments; across the slice the total is 58,838. The median number of exits is 20. By stage: Pre-seed (156), Seed (231), Series A (232), Series B (155) and Growth (107). The largest portfolios in this slice belong to Y Combinator, SOSV and Accel. Every row below is shown in full except the contact details, which are the paid part of the dataset. The numbers on this page are recomputed from the database, so they change when the data does.
- 232 firms in this slice.
- Most concentrated in San Francisco (45).
- Median investments per firm: 115.
- Leading sector: Ad tech (232).
- 232 rows carry a contact address; those are the paid part.
| By stage | Investors |
|---|---|
| Pre-seed | 156 |
| Seed | 231 |
| Series A | 232 |
| Series B | 155 |
| Growth | 107 |
| By sector | Investors |
|---|---|
| adtech | 232 |
| saas | 205 |
| martech | 190 |
| enterprise | 167 |
| data-analytics | 164 |
| ai | 162 |
| mobile | 150 |
| ecommerce | 149 |
| healthtech | 145 |
| fintech | 140 |
| By city | Investors |
|---|---|
| San Francisco | 45 |
| New York | 43 |
| Menlo Park | 20 |
| Palo Alto | 18 |
| Boston | 11 |
| Los Angeles | 6 |
| Cambridge | 4 |
| Washington | 3 |
| By type | Investors |
|---|---|
| Venture funds | 210 |
| Corporate VC | 9 |
| Accelerators | 6 |
| Angel networks | 4 |
| Family offices | 3 |
Number of investments made, by firm.
| Portfolio size | Investors |
|---|---|
| 0–10 | 10 |
| 10–25 | 13 |
| 25–50 | 29 |
| 50–100 | 48 |
| 100+ | 131 |
Preview — 15 of 232
| Investor | Type | Location | Stages | Investments | Contact |
|---|---|---|---|---|---|
| Y Combinator | Accelerators | Mountain View, US | Series B, Seed, Series A | — | |
| SOSV | Venture funds | Princeton, US | Seed, Pre-seed, Series A | — | |
| Accel | Venture funds | Palo Alto, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| SV Angel | Venture funds | San Francisco, US | Series B, Seed, Series A | — | |
| Bessemer Venture Partners | Venture funds | Redwood City, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Andreessen Horowitz | Venture funds | Menlo Park, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Lightspeed Venture Partners | Venture funds | Menlo Park, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Alumni Ventures | Venture funds | Chicago, US | Series B, Seed, Growth, Series A | — | |
| General Catalyst | Venture funds | New York, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| GV | Venture funds | Mountain View, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Norwest Venture Partners | Venture funds | Palo Alto, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Greylock | Venture funds | Menlo Park, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Battery Ventures | Venture funds | Boston, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Founders Fund | Venture funds | San Francisco, US | Series B, Seed, Growth, Pre-seed, Series A | — | |
| Venrock | Venture funds | Palo Alto, US | Series B, Seed, Growth, Pre-seed, Series A | — |
Questions
What is free here?
Name, type, stages, sectors, city and country, website, investment and exit counts — as aggregates across all 232 rows and row by row for the first fifteen. Contact addresses are not part of the free view and are physically absent from this page.
What does buying add?
The full export of all 232 rows in XLSX and CSV, including contact email (232 rows have one). Access follows the list, not a file: the export is rebuilt and you always download the current version.
Where does the data come from?
Source and method are described on the investor data sources page. We do not claim verification that did not happen — each row carries a confidence level. An investor who asks to be excluded is removed from both the preview and the export.
Where this data comes from · updated 9/5/2026