15 pre-seed investors in Washington
We list 15 pre-seed investors in Washington 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 Seattle (12), Bellevue (2) and Stanwood (1).
Top 5 pre-seed investors in Washington, 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 (40: full marks within 3 months, then stepping down at 6, 12 and 24 months), stage focus (15: all of it when pre-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.
Incisive VC
Type: VC firm · HQ: Seattle, WA · Stages: Pre-seed · Focus: AI, Media, B2B, SaaS · Latest activity: Form D filing, Sep 2026 · Fund size on file: $25M (largest main fund, SEC Form D, 2026)
Latest Form D filing dated Sep 2026; $25M fund on file (SEC Form D, 2026); backs pre-seed rounds; names the US as where it invests; 1 named decision-maker on file.
Madrona
Type: VC firm · HQ: Seattle, WA · Stages: Pre-seed, Seed, Series A, Series B, Growth · Focus: AI, Biotech, Consumer, Deep Tech · Latest activity: New deal, Oct 2026 · Fund size on file: $490M (largest main fund, SEC Form D, 2025)
Dated new deal in Oct 2026; $490M fund on file (SEC Form D, 2025); backs pre-seed, seed and Series A rounds; names the US as where it invests; 8 named decision-makers on file.
Flying Fish Ventures
Type: VC firm · HQ: Seattle, WA · Stages: Pre-seed, Seed · Focus: AI, SaaS · Latest activity: New deal, Jul 2026 · Fund size on file: $100M (largest main fund, SEC Form D, 2024)
Dated new deal in Jul 2026; $100M fund on file (SEC Form D, 2024); backs pre-seed and seed rounds; names the US as where it invests; 7 named decision-makers on file.
Deep Future
Type: VC firm · HQ: Seattle, WA · Stages: Pre-seed · Focus: Energy, Semiconductor, Robotics, Deep Tech · Latest activity: Form D filing, May 2026 · Fund size on file: $50M (largest main fund, SEC Form D, 2025)
Latest Form D filing dated May 2026; $50M fund on file (SEC Form D, 2025); backs pre-seed rounds; 1 named decision-maker on file.
Swizzle Ventures
Type: VC firm · HQ: Bellevue, WA · Stages: Pre-seed, Seed · Focus: Healthtech, Fintech, AI, Medtech · Latest activity: Form D filing, Jun 2026 · Fund size on file: $15M (largest main fund, SEC Form D, 2026)
Latest Form D filing dated Jun 2026; $15M fund on file (SEC Form D, 2026); backs pre-seed and seed rounds; 1 named decision-maker on file.
First 10 of 15 pre-seed investors in Washington
| Investor | Stagesour research | Focusour research | Latest dated activity | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|
| Incisive VCVC firm · Seattle, WA | Pre-seed | AIMediaB2BSaaS | Form D filingSep 2026 | $25Mlargest main fund, SEC Form D, 2026 | 4 Nov 2026 | 1 name · Unlock |
| MadronaVC firm · Seattle, WA | Pre-seedSeedSeries ASeries BGrowth | AIBiotechConsumerDeep Tech | New dealOct 2026 | $490Mlargest main fund, SEC Form D, 2025 | 5 Nov 2026 | 8 names · Unlock |
| Flying Fish VenturesVC firm · Seattle, WA | Pre-seedSeed | AISaaS | New dealJul 2026 | $100Mlargest main fund, SEC Form D, 2024 | 4 Nov 2026 | 7 names, firm email · Unlock |
| Deep FutureVC firm · Seattle, WA | Pre-seed | EnergySemiconductorRoboticsDeep Tech | Form D filingMay 2026 | $50Mlargest main fund, SEC Form D, 2025 | 4 Nov 2026 | 1 name · Unlock |
| Swizzle VenturesVC firm · Bellevue, WA | Pre-seedSeed | HealthtechFintechAIMedtech | Form D filingJun 2026 | $15Mlargest main fund, SEC Form D, 2026 | 4 Nov 2026 | 1 name · Unlock |
| AI2 IncubatorAccelerator · Seattle, WA | Pre-seed | AISaaS | Form D filingJul 2025 | $56Mlargest main fund, SEC Form D, 2025 | 4 Nov 2026 | 8 names · Unlock |
| Pioneer Square VenturesVC firm · Seattle, WA | Pre-seed | AIHealthtechSaaS | Form D filingApr 2026 | $100Mlargest main fund, SEC Form D, 2026 | 4 Nov 2026 | 8 names, firm email · Unlock |
| FortsonVC firm · Stanwood, WA | Pre-seedSeed | GeneralistB2BSaaS | Form D filingApr 2025 | $75Mlargest main fund, SEC Form D, 2025 | 5 Nov 2026 | 1 name · Unlock |
| Conduit Venture LabsVC firm · Seattle, WA | Pre-seed | Industrial TechAIRoboticsDeep Tech | Form D filingApr 2024 | $5MSEC Form D, 2024 | 5 Nov 2026 | 7 names · Unlock |
| Wave Function VenturesVC firm · Seattle, WA | Pre-seed | EnergyIndustrial TechSpaceDefense Tech | Form D filingAug 2025 | $13Mlargest main fund, SEC Form D, 2024 | 4 Nov 2026 | 2 names, firm email · Unlock |
You are seeing 10 of 15. The full list adds 5 more investors and 52 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 |
|---|---|---|
| Seattle | 12 | 80% |
| Bellevue | 2 | 13% |
By sector
| Sector | On this list | Share |
|---|---|---|
| AI | 10 | 67% |
| SaaS | 9 | 60% |
| Deep Tech | 6 | 40% |
| Robotics | 4 | 27% |
| Hardware | 4 | 27% |
| Energy | 3 | 20% |
| Media | 2 | 13% |
| B2B | 2 | 13% |
| Biotech | 2 | 13% |
| Developer Tools | 2 | 13% |
| Climate Tech | 2 | 13% |
| Healthtech | 2 | 13% |
Sector is our research. A firm can carry more than one sector, and each share is of all 15 rows.
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 14 | 93% |
| Accelerator | 1 | 7% |
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. Stage: the firm states that it invests at pre-seed. Place: head office in Washington.
- 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 (40: full marks within 3 months, then stepping down at 6, 12 and 24 months), stage focus (15: all of it when pre-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 10 Nov 2026.
- Fill rates
- Of 15 rows: stage 15, sector 14, fund size 13, website 15. In the paid file: named decision-makers on 15 rows, firm email on 5, LinkedIn page on 8, check size on 3.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many pre-seed investors in Washington 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 5 and a new deal for 2. The cities with the most are Seattle (12), Bellevue (2) and Stanwood (1).
Which pre-seed investors in Washington have a fund filing dated in the last 12 months?
6 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 Incisive VC (Sep 2026), Athenaeum Ventures (Sep 2026) and Swizzle Ventures (Jun 2026).
What is the typical fund size of pre-seed investors in Washington?
The median fund size on file for this list is $25M, across the 13 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 2 have no size on a Form D.
How do I contact pre-seed investors in Washington?
The paid file holds 52 named decision-makers across 15 of these 15 and a firm email for 5. 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 pre-seed investors in Washington 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
Pre-seed investors in California (223)Pre-seed investors in New York (86)Pre-seed investors in Massachusetts (49)Pre-seed investors in Florida (29)Pre-seed investors in Texas (27)Seed investors in Washington (21)Pre-seed investors in Illinois (16)
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 pre-seed and Washington. 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.