Boeing HorizonX spun out 2021 as JV with AE Industrial Partners. Boeing anchor LP ($50M, sub-25%). Fund II targeting $250M. 55+ global investments. Aerospace, defense, future mobility, space, sustainability, digital enterprise. Head: Brian Schettler. Notable: Solestial, Aloft (acq. 2025).

Seattle AI-focused pre-seed incubator from Allen Institute for AI (AI2). Backs early-stage AI companies. Part of Paul Allen scientific legacy.

Original Boeing internal CVC 2017–2021. 40+ aerospace/defense investments before spinning out as AEI HorizonX. Retained separate internal team post-spinout to integrate portfolio tech into Boeing.

Seattle seed/Series A. $100M+. Pacific Northwest focus. Technical founders, operational problems.

Seattle pre-seed/seed B2B SaaS. $150M AUM. Notable: Remitly, Outreach.

$4.2B AUM. Seattle growth equity focused exclusively on healthcare. One of largest dedicated healthcare VCs in US.

Seattle enterprise VC. $250M raised 2023. Founded by ex-Ignition and ex-Madrona partners. Next decade of enterprise innovation thesis.

$2B AUM. Bellevue/Los Altos. Enterprise software VC 20+ years. Fortune 100 + SMB markets. Notable: DocuSign, Splunk, Chef, Aviatrix, Carbon.

Seattle flagship VC. $3.5B AUM. 30 years. Seed–growth. First investor in Amazon. Applied AI thesis 2025. Enterprise, AI, cloud. Notable: Amazon, Smartsheet, Redfin, Snowflake.

Seattle consumer VC. 200+ companies. Co-founded by Dan Levitan and Howard Schultz (Starbucks). Notable: Allbirds, eBay, Groupon, Modern Fertility, Pacaso.

Pioneer Square Labs is a startup studio and venture capital fund that partners with founders to build companies. They operate through PSL Studio, which helps entrepreneurs start companies from scratch, and PSL Ventures, which invests in early-stage companies.

Seattle + Portland. $800M AUM. First-round B2B software, analytics, cloud. Pacific Northwest + Western Canada. Operator-led. Notable: Zulily, PayScale, Amplero. [merged from 790]: Seattle + Portland offices. $800M AUM. First-round B2B software, analytics, cloud infrastructure. Pacific Northwest + Western Canada. Partner Diane Fraiman leads Portland presence. AI-driven business solutions, software-driven hardware, sustainable agriculture, supply chain.

Seattle early-stage life sciences + clean tech. Affiliated with Washington Research Foundation. Commercializes UW research.