17 seed investors in Connecticut, including 16 in Fairfield County
We list 17 seed investors in Connecticut as of November 2026: each has an SEC filing on file, and the list was last checked on 6 Nov 2026. The cities with the most head offices on this list are Westport (8), Greenwich (2) and Stamford (2). 16 of the 17 are in Fairfield County, so this page is also our list of seed investors in Fairfield County.
Top 5 seed investors in Connecticut, ranked by recent fund activity
Among firms with a published profile and a dated fund or deal in the last 24 months. The rule: Activity score out of 100: recency of the latest fund filing or dated deal (40: full marks within 3 months, then stepping down at 6, 12 and 24 months), stage focus (15: all of it when seed is the only stage the firm states, split evenly when it states more), 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 (20) and completeness of the public record (10). Stage and regional focus are 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.
NSV
Type: VC firm · HQ: Greenwich, CT · Stages: Seed, Late stage · Focus: Healthtech, AI, Semiconductor, Mobility · Latest activity: Portfolio news, Oct 2026 · Private fund assets: $990M (SEC Form ADV)
Portfolio news dated Oct 2026; $990M on file (SEC Form ADV); backs seed, late stage; names the US as where it invests; 5 named decision-makers on file.
Altai Ventures
Type: VC firm · HQ: Westport, CT · Stages: Seed, Series A · Focus: Insurtech, Fintech, AI, SaaS · Latest activity: New fund, Oct 2026 · Fund size on file: $100M (SEC Form D, 2025)
Latest fund filing dated Oct 2026; $100M fund on file (SEC Form D, 2025); backs seed, Series A; 8 named decision-makers on file.
Samaritan Partners
Type: VC firm · HQ: Darien, CT · Stages: Seed · Focus: Impact, Healthtech · Latest activity: New fund, Aug 2026 · Fund size on file: $10M (SEC Form D, 2023)
Latest fund filing dated Aug 2026; $10M fund on file (SEC Form D, 2023); backs seed; 1 named decision-maker on file.
Outsiders Fund
Type: VC firm · HQ: Norwalk, CT · Stages: Seed, Series A · Focus: AI, Cybersecurity, Industrial Tech, Mobility · Latest activity: New fund, Jan 2026 · Fund size on file: $150M (SEC Form D, 2025)
Latest fund filing dated Jan 2026; $150M fund on file (SEC Form D, 2025); backs seed, Series A; 8 named decision-makers on file.
Vesey Ventures
Type: VC firm · HQ: Westport, CT · Stages: Pre-seed, Seed, Series A · Focus: Fintech, AI, Cybersecurity, SaaS · Latest activity: New fund, May 2026 · Fund size on file: $77M (SEC Form D, 2021)
Latest fund filing dated May 2026; $77M fund on file (SEC Form D, 2021); backs pre-seed, seed, Series A; 3 named decision-makers on file.
First 10 of 17 seed investors in Connecticut
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| NSV | VC firm | Greenwich, CT | Seed, Late stage | Healthtech, AI, Semiconductor, Mobility | Portfolio news, Oct 2026 | $990M (SEC Form ADV) | 5 Nov 2026 | 5 names · Unlock |
| Altai Ventures | VC firm | Westport, CT | Seed, Series A | Insurtech, Fintech, AI, SaaS | New fund, Oct 2026 | $100M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| Samaritan Partners | VC firm | Darien, CT | Seed | Impact, Healthtech | New fund, Aug 2026 | $10M (SEC Form D, 2023) | 4 Nov 2026 | 1 name · Unlock |
| Outsiders Fund | VC firm | Norwalk, CT | Seed, Series A | AI, Cybersecurity, Industrial Tech, Mobility | New fund, Jan 2026 | $150M (SEC Form D, 2025) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Vesey Ventures | VC firm | Westport, CT | Pre-seed, Seed, Series A | Fintech, AI, Cybersecurity, SaaS | New fund, May 2026 | $77M (SEC Form D, 2021) | 5 Nov 2026 | 3 names, firm email · Unlock |
| Hash3 | VC firm | Ridgefield, CT | Pre-seed, Seed | Crypto and Web3, Fintech, AI, SaaS | New fund, Dec 2025 | $28M (SEC Form D, 2022) | 4 Nov 2026 | 2 names, firm email · Unlock |
| Max Ventures | VC firm | Old Greenwich, CT | Pre-seed, Seed | New fund, Sep 2024 | $50M (SEC Form D, 2023) | 5 Nov 2026 | 3 names · Unlock | |
| Red Beard Ventures | VC firm | Westport, CT | Seed | Crypto and Web3, Gaming, Media, Robotics | New fund, Sep 2025 | $26M (SEC Form D, 2022) | 4 Nov 2026 | 4 names · Unlock |
| Oak HC/FT | VC firm | Stamford, CT | Seed, Series A, Series B, Growth | Fintech, Healthtech, AI, Insurtech | New fund, Jul 2025 | 4 Nov 2026 | 5 names, firm email · Unlock | |
| 6th Man Ventures | VC firm | Westport, CT | Seed, Series A | Crypto and Web3, Fintech, Developer Tools, AI | New deal, Jan 2026 | 4 Nov 2026 | 2 names, firm email · Unlock |
You are seeing 10 of 17. The full list adds 7 more investors and 68 named decision-makers.
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16 seed investors in Fairfield County
7 of the 16 have a fund filing or a dated deal in the last 12 months; the median fund size on file is $27M (SEC Form D, 10 firms); the most recent fund filings are from Altai Ventures (Oct 2026), Samaritan Partners (Aug 2026) and Outsiders Fund (Jan 2026); of the 16 with a stage on file, seed (16), pre-seed (7) and Series A (6); the count covers the metro area, by city: Westport (8), Greenwich (2) and Stamford (2); the paid file holds 60 named decision-makers for them.
The first 5 in list order: NSV, Altai Ventures, Samaritan Partners, Outsiders Fund and Vesey Ventures. They are ranked with the rest of the list, by the same rule.
How these 17 break down
By city
| City | On this list | Share |
|---|---|---|
| Westport | 8 | 47% |
| Greenwich | 2 | 12% |
| Stamford | 2 | 12% |
By sector
| Sector | On this list | Share |
|---|---|---|
| AI | 13 | 76% |
| SaaS | 12 | 71% |
| Healthtech | 8 | 47% |
| Fintech | 7 | 41% |
| Deep Tech | 4 | 24% |
| Cybersecurity | 3 | 18% |
| Crypto and Web3 | 3 | 18% |
| Medtech | 3 | 18% |
| Mobility | 2 | 12% |
| Biotech | 2 | 12% |
| Insurtech | 2 | 12% |
| Consumer | 2 | 12% |
Sector is our research. A firm can carry more than one sector.
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 15 | 88% |
| Accelerator | 1 | 6% |
| Corporate VC | 1 | 6% |
Method and limits
- Source
- All 17 rows carry an SEC filing (Form D or Form ADV). All 17 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. Stage: the firm states that it invests at seed. Place: head office in Connecticut.
- Order
- Firms with a published profile come first. Activity score out of 100: recency of the latest fund filing or dated deal (40: full marks within 3 months, then stepping down at 6, 12 and 24 months), stage focus (15: all of it when seed is the only stage the firm states, split evenly when it states more), 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 (20) and completeness of the public record (10). Stage and regional focus are 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 6 Nov 2026.
- Fill rates
- Of 17 rows: stage 17, sector 15, fund size 14, website 17. In the paid file: named decision-makers on 16 rows, firm email on 8, LinkedIn page on 9, check size on 3.
- Corrections
- Email hello@theinvestordatabase.com or use the update form. We act within 5 working days.
Questions
How many seed investors in Connecticut are there?
We list 17 as of November 2026. 7 of the 17 have a fund filing or a dated deal in the last 12 months. The cities with the most are Westport (8), Greenwich (2) and Stamford (2).
Which seed investors in Connecticut raised a new fund in the last 12 months?
5 of the 17 have a fund filing dated in the last 12 months. The most recent on this list are Altai Ventures (Oct 2026), Samaritan Partners (Aug 2026) and Outsiders Fund (Jan 2026).
What is the typical fund size of seed investors in Connecticut?
The median fund size on file for this list is $28M, across the 11 firms with a size on an SEC Form D. The fund on file is each firm's main fund, which is not always its newest. The other 6 do not disclose a size there.
How do I contact seed investors in Connecticut?
The paid file holds 68 named decision-makers across 16 of these 17 and a firm email for 8. 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 seed investors in Connecticut come from?
All 17 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 last checked on 6 Nov 2026 at the latest. The whole file is re-verified twice a year.
Related lists
Seed investors in California (415)Seed investors in New York (128)Seed investors in Florida (64)Seed investors in Massachusetts (60)Seed investors in Texas (49)Seed investors in Illinois (33)Seed investors in Colorado (22)Seed investors in Washington (21)Seed investors in Pennsylvania (19)
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