The short answer
Our database lists 1,918 startup investors based in Massachusetts, concentrated in Boston (1,365), Cambridge (288), Marion (25). 230 are angels or syndicates and 408 list pre-seed as a stage they invest in. (Zalarma investor database, as of 2026-11-01.)
Where they are in Massachusetts
Cities with at least 10 startup investors listed in our database.
| City | Startup investors |
|---|---|
| Boston | 1,365 |
| Cambridge | 288 |
| Marion | 25 |
| Beverly | 23 |
| Waltham | 21 |
What stages they back
Of the 1,612 records in Massachusetts that list a stage, here is how many invest at each one (investors often list several).
Investors by stage
Who they are
The mix of investor types tells you where your first checks are most likely to come from.
Investors by type
Sectors they focus on
Sector focus as listed on each record. Generalists who list many sectors are counted in each.
Investors by sector focus
Typical check sizes
Based on the 1,594 records that list a check size (we use the low end of a stated range).
Investors by typical check size
Firms with the most investors listed in Massachusetts
Firms ranked by how many of their investors in Massachusetts appear in our database with a stage listed. A useful starting map of who is active locally, not a ranking of quality.
| Firm | Main stages | Listed |
|---|---|---|
| Bain Capital Ventures | Seed, Series A, Series B+ | 99 |
| Flagship Pioneering | Seed, Series A | 30 |
| Bain Capital | Seed, Series A, Series B+ | 27 |
| RA Capital Management | Seed, Series A, Series B+ | 23 |
| Third Rock Ventures | Seed, Series A, Series B+ | 20 |
| Silversmith Capital Partners | Series B+ | 20 |
| F-Prime Capital (formerly Fidelity Biosciences) | Seed, Series A | 19 |
| Battery Ventures | Seed, Series A | 16 |
| Mendoza Ventures | Pre-seed, Seed | 15 |
| Summit Partners | Series B+ | 13 |
| Breakthrough Energy Ventures | Seed, Series A, Series B+ | 13 |
| Flare Capital Partners | Seed, Series A, Series B+ | 12 |
How to raise in Massachusetts
- Start local. Boston has the deepest bench in the state, followed by Cambridge. Local investors can meet you in person, check references fast and introduce you to the next check.
- Angels are a big part of the picture (230 in our Massachusetts data). Angel groups and syndicates pool smaller checks, so one group yes can fill a meaningful part of a pre-seed round.
- Use a warm-intro plan for the top 25 names and a short cold email for the rest.
About this data
Counts are records in the Zalarma investor database, as of 2026-11-01: angels, venture firms and their partners, micro-VCs, family offices, corporate VCs and accelerators that list startup investing. One investor can appear in several stage or sector rows. Stage, sector and check size come from what each record lists, so not every record has every field. Counts under 10 are not shown. Firm names are listed; we do not publish personal contact details on this site. Read how we build and check the data.
Frequently asked questions
How many startup investors are in Massachusetts?
The Zalarma investor database lists 1,918 startup investors based in Massachusetts as of 2026-11-01, including angels, venture firms and their partners, family offices, corporate VCs and accelerators.
Which Massachusetts cities have the most startup investors?
In our data: Boston (1,365), Cambridge (288), Marion (25), Beverly (23).
Are there pre-seed investors in Massachusetts?
Yes. 408 startup investors in Massachusetts list pre-seed as a stage they invest in, and 1,439 list seed.
Do Massachusetts investors only fund Massachusetts companies?
No. Many invest regionally or nationally, but local investors are often the fastest first checks because they can meet you and check references in person. Check each investor's focus before reaching out.
How do I get introduced to these investors?
Shortlist the 20 to 30 investors whose stage, sector and check size fit your round, then look for a warm path through founders they backed, local angel groups, lawyers and accelerators. Zalarma can build that shortlist for you.