Adaptive Biotechnologies is a Seattle-based pioneer in immune-driven medicine that harnesses the adaptive immune system as a natural diagnostic and therapeutic tool. The company decodes and deploys the immune system's capabilities to improve patient lives and propel a paradigm shift in medicine.

Seattle WA. Paul Allen's umbrella science philanthropy organization. Manages three major institutes: Allen Institute for Brain Science (2003), Allen Institute for AI / Ai2 (2014), Allen Institute for Cell Science (2014). $1B+ total committed by Paul Allen before his death (Oct 2018). Now managed by Paul G. Allen Trust and Allen Family Philanthropies. Chair: Jody Allen (Paul's sister). One of large

Seattle WA. Non-profit AI research institute founded by Paul Allen (Microsoft co-founder, 2014). Largest 501c3 nonprofit AI research org in world. 200+ researchers. $100M+ annual funding from Paul Allen estate. CEO: Peter Clark (interim May 2026, after Ali Farhadi departed to Microsoft). Key: OLMo (fully open 32B LLM outperforms GPT-4o mini), Tulu (instruction tuning), PRIOR (computer vision), Sem

Seattle WA. Non-profit neuroscience research institute founded by Paul Allen (2003, $100M founding gift — his first major science philanthropy). Part of Allen Institute umbrella (alongside AI2 and Allen Institute for Cell Science). Flagship product: Allen Brain Atlas — free, open-access database of gene expression in mouse and human brains, used by 90%+ of neuroscience researchers globally. Allen

Digital freight network. Seattle WA. Gates Ventures + Greylock. $3.8B valuation 2022. Ceased operations 2023 — notable shutdown.

Sales enablement platform. Seattle WA. ICONIQ Growth + Tiger Global. $3.5B valuation 2021.

Icertis is an AI-native contract intelligence company headquartered in Bellevue, Washington, that provides enterprise contract lifecycle management software. Its platform turns enterprise strategy into faster execution at scale by digitizing and automating contract processes. The company is headquartered at 14711 NE 29th Place, Suite 100, Bellevue, WA.

Karat is a Seattle, Washington-based company that provides technical interview and screening services, helping engineering organizations evaluate talent, benchmark capability, and deliver workforce intelligence. The company serves as a talent elevation partner for technical leaders navigating workforce transformation in the human and AI era.

Seattle WA (Japanese company, US presence). Fusion energy engineering and plant design — components, test facilities, demonstration plants. IQT Summer 2024 investment. Not building a fusion reactor — building the supply chain and engineering systems around fusion reactors. Unique B2B fusion infrastructure play.

Opanga Networks is a Seattle, Washington-based company and global leader in the development and deployment of machine learning-powered software solutions for the telecommunications industry. The company provides AI and machine learning software innovation to telecom operators worldwide.

Sales execution platform. Seattle WA. Spark Capital + Salesforce Ventures. $4.4B valuation 2021.

Seattle WA. Autonomous ground vehicle software for defense. Seed backed by Point72 Ventures 2023. Builds software stack for uncrewed ground systems — terrain-aware navigation, obstacle avoidance, mission autonomy. "Ground autonomy is especially difficult" (Point72 blog). Relevant to Army robotics programs and DARPA ground vehicle work.

Seattle WA. Named for Paul Allen (Microsoft co-founder, $40M gift). Top-5 CS program. Research lineage includes Amazon Alexa voice recognition. Strong AI/ML output feeding Seattle tech ecosystem. Co-located with Allen Institute for AI (AI2) nearby.

Pulumi is a Seattle-based open source infrastructure as code platform that enables developers and operators to build and manage cloud infrastructure using real programming languages including Node.js, Python, Go, .NET, Java, and YAML. The company is headquartered in Seattle with teams around the world serving thousands of cloud engineering teams.

Qumulo is a Seattle, Washington-based software company that provides a unified data platform for storing, managing, and simplifying unstructured data at exabyte scale across edge, core, and cloud environments. The company serves customers in data-intensive industries and supports hybrid and multi-cloud workflows. It employs between 201 and 500 people.

Remitly is a regulated cross-border payments company headquartered in Seattle, Washington, enabling individuals to send money internationally in a fast, safe, and affordable way. Founded in 2011, the company is trusted by more than 9.6 million customers worldwide. Its registered address is 401 Union Street, Suite 1000, Seattle, WA.

Rodriguez Bicycles is a Seattle, WA custom bicycle manufacturer and retail shop that has been hand-building bicycles and tandems in Seattle since 1973. Operating as R+E Cycles at 5627 University Way NE, the company sells exclusively its own custom-built frames rather than mass-market brands.

Rover is a Seattle-based online marketplace that connects dog and cat owners with trusted local pet sitters and dog walkers across the US, Canada, and Europe. The platform offers a range of services including pet boarding, house sitting, dog walking, drop-in visits, and doggy day care.

Sana Biotechnology is a Seattle-based biopharmaceutical company focused on engineering cells to repair and control genes or replace missing and damaged cells to address the underlying causes of disease. Founded in early 2019, it has grown to over 350 employees across Seattle, Cambridge, and South San Francisco. The company is publicly traded and conducts research in cell and gene therapy.

Kent WA. Fully reusable launch vehicle — both first and second stages. IQT portfolio. Raised $100M Series B (2023, lead: Addition). Nova rocket: targeting 2025 launch. Key differentiator: fully reusable second stage (SpaceX only reuses first stage). DOD responsive launch market. Seattle/Kent aerospace corridor (Blue Origin neighbor).