---
title: "15 B2B Investors in Massachusetts (Nov 2026)"
last_updated: "2026-11-10"
rows: "15"
free_rows: "10"
source: "SEC filings"
canonical: "https://theinvestordatabase.com/lists/b2b-investors-in-massachusetts/"
---

# 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).

- 15 investors
- 7 with dated activity in the last 12 months (fund, deal or portfolio news)
- $94M median fund size on file (SEC Form D, 14 firms)
- 82 named decision-makers on file

## First 10 of 15 B2B investors in Massachusetts

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest dated activity | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| NextView Ventures | VC firm | Boston, MA | Pre-seed, Seed | B2B, AI, Marketing Tech, Robotics | New deal, Oct 2026 | $135M (largest main fund, SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/nextview-ventures/ |
| Tectonic Ventures | VC firm | Newton, MA | Pre-seed | B2B, AI, SaaS | Form D filing, Aug 2026 | $87M (largest main fund, SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/tectonic-ventures/ |
| January Ventures | VC firm | Wellesley Hills, MA | Pre-seed | B2B, Healthtech, AI, Future of Work | Form D filing, Jun 2026 | $15M (largest main fund, SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/january-ventures/ |
| Oui Capital | VC firm | Millbury, MA | Pre-seed, Seed | B2B, Fintech, Mobility, Ecommerce | Portfolio news, Sep 2026 | $9M (largest main fund, SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/oui-capital/ |
| Glasswing Ventures | VC firm | Boston, MA | Pre-seed | B2B, AI, Future of Work, Cybersecurity | New deal, Jun 2026 | $203M (largest main fund, SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/glasswing-ventures/ |
| Boston Seed | VC firm | Wellesley Hills, MA | Pre-seed, Seed | B2B, AI, Developer Tools, Fintech | New deal, Jul 2025 | $60M (largest main fund, SEC Form D, 2024) | 2026-11-05 | https://theinvestordatabase.com/investors/boston-seed/ |
| Stage 2 Capital | VC firm | Lincoln, MA | Pre-seed, Seed, Series A | B2B, AI, Fintech, SaaS | Form D filing, Jul 2024 | $134M (largest main fund, SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/stage-2-capital/ |
| Companyon Ventures | VC firm | Boston, MA | Seed | B2B, AI, Future of Work, Fintech | Form D filing, Mar 2026 | $100M (largest main fund, SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/companyon-ventures/ |
| Bramalea Partners | VC firm | Medfield, MA | Series B, Growth | B2B, Healthtech, AI, Fintech | Portfolio news, Mar 2026 | $78M (largest main fund, SEC Form D, 2021) | 2026-11-05 | https://theinvestordatabase.com/investors/bramalea-partners/ |
| Wavecrest Growth Partners | VC firm | Boston, MA | Growth | B2B, AI, SaaS, Data | Form D filing, Jul 2025 | $450M (largest main fund, SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/wavecrest-growth-partners/ |

You are seeing 10 of 15. The full list adds 5 more investors and 82 named decision-makers.

Get all 15 investors and 82 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/b2b-investors-in-massachusetts
This page: https://theinvestordatabase.com/lists/b2b-investors-in-massachusetts/

## 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: 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.
- 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.

## 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.