Seattle and Washington startup investors: angels, networks and seed funds

• Washington: 758 startup investor records, 534 in Seattle.
• 257 angel records, fifth most of any state.
• Seed share is 94.6% of records with a stage.
• Alliance of Angels and Madrona are central to the ecosystem.
• Former colleagues from big local tech companies are the warmest investors.

Seattle is the most developed startup market in the Pacific Northwest, and it has a profile unlike any other city in our data: a large group of angels who came out of the region's big technology companies, a well-established angel network, and a seed-focused venture community. Washington holds 758 US startup investor records in the Zalarma database, the most of any state outside California, New York, Massachusetts, Texas, Florida and Illinois (Zalarma investor database, as of 2026-11-01).

Washington at a glance

A seed market with deep angel roots

540 Washington records list seed, 94.6% of the 571 records with a known stage. Pre-seed is strong too: 249 records. Washington's 257 angel and syndicate records are the fifth most of any state in our data, behind California, New York, Texas and Florida. Many are former engineers, product leaders and executives from the region's large software, cloud and e-commerce companies. They understand technical products and enterprise sales, and they often invest in former colleagues.

Alliance of Angels and the seed funds

Alliance of Angels has 35 investors listed in our Washington data, the most of any firm or network in the state, and it lists seed and Series A. It is a long-established angel network and a natural early stop for Northwest founders. Madrona, with more than 10 investors listed under each of its names in our data, is a long-standing Seattle seed and early-stage venture firm. Others that appear include Pioneer Square Labs, a startup studio and fund; Voyager Capital; Flying Fish Partners and Unlock Venture Partners, both listing pre-seed; SeaChange Fund; WestRiver Group; and Operator Collective.

What Washington investors fund

B2B SaaS is the top focus (341 records), followed by consumer (293), machine learning and data (183), healthcare (172) and deep tech (150). Machine learning and data ranks higher in Washington than in most states, which fits the region's cloud and research base. Biotech (130 records) and climate (92) also have notable pools.

Check sizes

Of the 563 Washington records with a known check size, 236 list $50K to $250K and 198 list $250K to $1M. Only 46 list $1M or more, 8.2% against 21.0% nationally. Washington is an early-stage market; larger rounds often bring in California investors.

Seattle and the Eastside

Seattle has 534 records. Across Lake Washington, Bellevue (61), Kirkland (20) and Redmond (17) add more, many of them angels near the large technology campuses. Spokane and the rest of the state are much smaller in our data; founders there usually raise through Seattle networks.

Family offices and corporates

Washington has 110 family office records and 18 corporate VC records. Much of the region's newer family wealth came from technology companies, so some family offices here are more comfortable with software risk than family offices elsewhere. Corporate venture arms tied to local technology companies can matter for enterprise and cloud startups, but as always, read the rights that come with a strategic check and keep a financial lead in the round.

A hypothetical Seattle pre-seed

Consider a hypothetical team of two former cloud engineers building developer tooling, with 30 companies on a free beta. A realistic $1.2M pre-seed in Seattle might include $400K from a local seed fund that lists pre-seed, $300K through an angel network, and $500K from eight to ten angels who worked with the founders or at similar companies. The founders' former managers often write early checks and make strong introducers. That is the Seattle pattern: technical credibility and colleague networks do much of the work.

How to raise in Washington

1. Start with your former colleagues. If you came out of a big local technology company, your old managers and peers are your warmest investors.
2. Apply to the angel network early. Its process takes time; run it in parallel with individual angels. See our angel groups guide.
3. Find a seed lead locally. With 540 seed records, a Seattle seed lead is realistic.
4. Plan larger rounds with California. For $3M-plus rounds, Bay Area funds often join; Seattle investors can introduce you.
5. Use Portland and Vancouver as a second ring for consumer and climate founders.

Next steps

Browse the Washington investors page and the Seattle investors page. Or ask us to hand-pick five investors who fit your round.

How we counted

Counts are records in the Zalarma investor database tagged as startup investors with a US location, as of 2026-11-01. A record is a person or a firm, and one record can list several stages, sectors and check sizes, so columns do not add up to the total. Shares use only records where that field is known. We never publish a count under 10; a dash means fewer than 10. Firm counts are shown only when 10 or more. More on sources in our data.