15 B2B investors in Massachusetts
We list 15 B2B investors in Massachusetts as of November 2026: each has an SEC filing on file, and its rows were last checked between 4 Nov 2026 and 10 Nov 2026. The cities with the most head offices on this list are Boston (6), Cambridge (3) and Wellesley Hills (2).
Top 5 B2B investors in Massachusetts, ranked by our activity score
Among firms with a published profile and dated activity in the last 24 months. The rule: Activity score out of 100: recency of the latest dated activity, which is a fund filing or announcement, a deal or portfolio news (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns. The same rule orders the whole list; it is repeated in the method box.
NextView Ventures
Type: VC firm · HQ: Boston, MA · Stages: Pre-seed, Seed · Focus: B2B, AI, Marketing Tech, Robotics · Latest activity: New deal, Oct 2026 · Fund size on file: $135M (largest main fund, SEC Form D, 2025)
Dated new deal in Oct 2026; $135M fund on file (SEC Form D, 2025); states B2B as a focus; names the US as where it invests; 6 named decision-makers on file.
Tectonic Ventures
Type: VC firm · HQ: Newton, MA · Stages: Pre-seed · Focus: B2B, AI, SaaS · Latest activity: Form D filing, Aug 2026 · Fund size on file: $87M (largest main fund, SEC Form D, 2021)
Latest Form D filing dated Aug 2026; $87M fund on file (SEC Form D, 2021); states B2B as a focus; names the US as where it invests; 2 named decision-makers on file.
January Ventures
Type: VC firm · HQ: Wellesley Hills, MA · Stages: Pre-seed · Focus: B2B, Healthtech, AI, Future of Work · Latest activity: Form D filing, Jun 2026 · Fund size on file: $15M (largest main fund, SEC Form D, 2021)
Latest Form D filing dated Jun 2026; $15M fund on file (SEC Form D, 2021); states B2B as a focus; names the US as where it invests; 7 named decision-makers on file.
Oui Capital
Type: VC firm · HQ: Millbury, MA · Stages: Pre-seed, Seed · Focus: B2B, Fintech, Mobility, Ecommerce · Latest activity: Portfolio news, Sep 2026 · Fund size on file: $9M (largest main fund, SEC Form D, 2022)
Portfolio news dated Sep 2026; $9M fund on file (SEC Form D, 2022); states B2B as a focus; 7 named decision-makers on file.
Glasswing Ventures
Type: VC firm · HQ: Boston, MA · Stages: Pre-seed · Focus: B2B, AI, Future of Work, Cybersecurity · Latest activity: New deal, Jun 2026 · Fund size on file: $203M (largest main fund, SEC Form D, 2024)
Dated new deal in Jun 2026; $203M fund on file (SEC Form D, 2024); states B2B as a focus; 8 named decision-makers on file.
First 10 of 15 B2B investors in Massachusetts
| Investor | Stagesour research | Focusour research | Latest dated activity | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|
| NextView VenturesVC firm · Boston, MA | Pre-seedSeed | B2BAIMarketing TechRobotics | New dealOct 2026 | $135Mlargest main fund, SEC Form D, 2025 | 4 Nov 2026 | 6 names · Unlock |
| Tectonic VenturesVC firm · Newton, MA | Pre-seed | B2BAISaaS | Form D filingAug 2026 | $87Mlargest main fund, SEC Form D, 2021 | 4 Nov 2026 | 2 names · Unlock |
| January VenturesVC firm · Wellesley Hills, MA | Pre-seed | B2BHealthtechAIFuture of Work | Form D filingJun 2026 | $15Mlargest main fund, SEC Form D, 2021 | 4 Nov 2026 | 7 names, firm email · Unlock |
| Oui CapitalVC firm · Millbury, MA | Pre-seedSeed | B2BFintechMobilityEcommerce | Portfolio newsSep 2026 | $9Mlargest main fund, SEC Form D, 2022 | 5 Nov 2026 | 7 names · Unlock |
| Glasswing VenturesVC firm · Boston, MA | Pre-seed | B2BAIFuture of WorkCybersecurity | New dealJun 2026 | $203Mlargest main fund, SEC Form D, 2024 | 4 Nov 2026 | 8 names, firm email · Unlock |
| Boston SeedVC firm · Wellesley Hills, MA | Pre-seedSeed | B2BAIDeveloper ToolsFintech | New dealJul 2025 | $60Mlargest main fund, SEC Form D, 2024 | 5 Nov 2026 | 6 names · Unlock |
| Stage 2 CapitalVC firm · Lincoln, MA | Pre-seedSeedSeries A | B2BAIFintechSaaS | Form D filingJul 2024 | $134Mlargest main fund, SEC Form D, 2022 | 5 Nov 2026 | 8 names, firm email · Unlock |
| Companyon VenturesVC firm · Boston, MA | Seed | B2BAIFuture of WorkFintech | Form D filingMar 2026 | $100Mlargest main fund, SEC Form D, 2026 | 4 Nov 2026 | 8 names · Unlock |
| Bramalea PartnersVC firm · Medfield, MA | Series BGrowth | B2BHealthtechAIFintech | Portfolio newsMar 2026 | $78Mlargest main fund, SEC Form D, 2021 | 5 Nov 2026 | 2 names · Unlock |
| Wavecrest Growth PartnersVC firm · Boston, MA | Growth | B2BAISaaSData | Form D filingJul 2025 | $450Mlargest main fund, SEC Form D, 2025 | 4 Nov 2026 | 2 names · Unlock |
You are seeing 10 of 15. The full list adds 5 more investors and 82 named decision-makers.
One-time payment. No subscription. No account.
Or get the free sample.
How these 15 break down
By city
| City | On this list | Share |
|---|---|---|
| Boston | 6 | 40% |
| Cambridge | 3 | 20% |
| Wellesley Hills | 2 | 13% |
By stage
| Stage | On this list | Share |
|---|---|---|
| Pre-seed | 8 | 53% |
| Seed | 9 | 60% |
| Series A | 4 | 27% |
| Series B | 2 | 13% |
| Growth | 2 | 13% |
Stage is our research. A firm can back more than one stage, and each share is of all 15 rows.
Method and limits
- Source
- All 15 rows carry an SEC filing (Form D or Form ADV). All 15 have a website we checked. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research.
- Inclusion rule
- Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Sector: the firm states B2B as a focus on its own site, or we observed it in the firm's portfolio. Place: head office in Massachusetts.
- Order
- Firms with a published profile come first. Activity score out of 100: recency of the latest dated activity, which is a fund filing or announcement, a deal or portfolio news (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Last refreshed
- November 2026. Rows on this list were checked between 4 Nov 2026 and 10 Nov 2026.
- Fill rates
- Of 15 rows: stage 14, sector 15, fund size 14, website 15. In the paid file: named decision-makers on 15 rows, firm email on 4, LinkedIn page on 9, check size on 1.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many B2B investors in Massachusetts are there?
We list 15 as of November 2026. 7 of the 15 have dated activity in the last 12 months. The newest item on the row is a fund filing for 3, a new deal for 2 and portfolio news for 2. The cities with the most are Boston (6), Cambridge (3) and Wellesley Hills (2).
Which B2B investors in Massachusetts have a fund filing dated in the last 12 months?
5 of the 15 have a fund filing dated in the last 12 months, a first Form D notice or the yearly amendment of an older fund. The most recent on this list are Tectonic Ventures (Aug 2026), January Ventures (Jun 2026) and Companyon Ventures (Mar 2026).
What is the typical fund size of B2B investors in Massachusetts?
The median fund size on file for this list is $94M, across the 14 firms with a size on an SEC Form D. The fund on file is the firm's largest main fund on our record or, where no main fund states a size, its largest side vehicle such as a feeder or an opportunity fund. It is not always the firm's newest. The other 1 has no size on a Form D.
How do I contact B2B investors in Massachusetts?
The paid file holds 82 named decision-makers across 15 of these 15 and a firm email for 4. We publish the address a firm lists itself, never a personal email. Each free row links to a profile with the firm's website.
Where does the data on B2B investors in Massachusetts come from?
All 15 rows have an SEC filing on file (Form D or Form ADV). Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were checked between 4 Nov 2026 and 10 Nov 2026. The whole file is due a recheck twice a year, and every row shows the date it was last checked.
Related lists
B2B investors in California (115)AI investors in Massachusetts (65)Healthtech investors in Massachusetts (62)SaaS investors in Massachusetts (58)Medtech investors in Massachusetts (38)Biotech investors in Massachusetts (38)B2B investors in New York (35)Fintech investors in Massachusetts (28)Industrial tech investors in Massachusetts (24)Deep tech investors in Massachusetts (20)Climate tech investors in Massachusetts (19)Hardware investors in Massachusetts (16)Energy investors in Massachusetts (15)
Not sure this is the right list? Describe your raise in the investor matching tool and get a shortlist. The link opens it set to B2B and Massachusetts. Guide: venture fund filings and fund sizes by state. Markdown version of this page.
Check the quality first
A free sample of 100 investors, every column, with sources and dates.