Fractional CFO services in Seattle
Seattle is the Pacific Northwest's dominant tech market and one of the few US cities where cloud infrastructure companies - not just application-layer SaaS - were built from the ground up.
Amazon Web Services and Microsoft Azure were both conceived and scaled here, creating an engineering talent pool and a customer network that gives Seattle-based B2B SaaS companies a structural advantage in enterprise sales. Zillow, Outreach, Highspot, Rec Room and Pioneer Square Labs' portfolio companies sit atop a deep layer of ex-Amazon and ex-Microsoft operating talent.
We work with Seattle-based startups from seed to Series B+, supporting them on financial modelling, KPI tracking, board packs, hiring plans, runway management and fundraise prep.
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Seattle startup ecosystem
Cloud-native B2B SaaS capital of the Pacific Northwest
Seattle benefits from the proximity of Amazon and Microsoft - two of the world's largest cloud and enterprise software platforms - which creates a flywheel of engineering talent, enterprise customer relationships and angel capital from employee liquidity events. Madrona Venture Group, the city's flagship VC, has backed Amazon, Smartsheet, Redfin and Outreach from Seattle.
Cloud infrastructure, enterprise SaaS and health-tech anchors
Outreach and Highspot define the enterprise sales-tech cluster; both are unicorns built on the back of ex-Microsoft GTM talent. Rec Room represents the Seattle gaming and consumer social thread. The health-tech cluster is anchored by Providence Health, UW Medicine and a growing set of digital health companies capitalising on the region's hospital system density.
South Lake Union, Pioneer Square and Bellevue clusters
South Lake Union is Amazon's campus and the de facto anchor of Seattle's tech geography - the surrounding blocks host AWS spinouts, robotics companies and AI labs. Pioneer Square is the early-stage and founder community hub, home to Pioneer Square Labs (a startup studio that has produced Boundless, Shiftboard and others). The Bellevue tech corridor east of Lake Washington hosts Microsoft's Redmond campus and a cluster of later-stage enterprise software companies.
Engineering talent from UW and the hyperscaler alumni pool
University of Washington Paul G. Allen School of Computer Science and Engineering is consistently ranked a top-five CS programme nationally and feeds directly into Seattle's startup scene. The secondary pipeline - ex-Amazon, ex-Microsoft and ex-Google engineers seeking founder or early-employee roles - is the deepest in any non-Bay Area US city.
Accelerators and angel networks active in Seattle
Seattle's accelerator landscape is smaller than the Bay Area but tightly linked to the UW research ecosystem and the Madrona and Vulcan capital networks. These are the most active programmes founders consider when starting or scaling in the city.
Techstars Seattle
Techstars Seattle is the Seattle cohort of the global Techstars network - a 13-week, mentor-led programme with a standard $120k investment and strong ties to the Madrona and Voyager Capital networks. Track record in B2B SaaS, marketplaces and health-tech.
AI2 Incubator
AI2 Incubator is the startup programme run by the Allen Institute for AI (AI2), founded by Paul Allen and based in Seattle. It backs AI-first companies at pre-seed and seed with $500k–$1M tickets, deep technical mentorship from AI2's research staff and access to AI2's compute and data resources.
Madrona Venture Labs
Madrona Venture Labs is the startup studio and incubator arm of Madrona Venture Group - Seattle's leading VC with a portfolio including Amazon, Smartsheet, Redfin and Outreach. MVL co-founds companies, typically takes 20–30% equity at formation and provides operational support through the seed stage.
CoMotion Labs (UW)
CoMotion Labs is the University of Washington's commercialisation and incubation arm, supporting UW faculty, student and staff founders. Sector-agnostic but with particular strength in biotech, cleantech, materials science and AI - reflecting UW's deep research portfolio across these disciplines.
Pioneer Square Labs
Pioneer Square Labs is a Seattle-based startup studio that ideates and co-founds companies from scratch, typically in B2B SaaS, marketplace and AI. PSL takes a founding-team equity stake and provides seed capital, operational support and hiring resources, having launched Boundless, Shiftboard, Flexe and others.
Seattle startup accountants vs Flow fractional CFO
Most Seattle startups work with a CPA firm for federal tax, Washington State B&O tax, payroll and audit. That role is essential - but it does not replace a fractional CFO.
Tax compliance, audit, B&O tax and payroll. The firms most used by Seattle venture-backed startups.
- Clark Nuber
Bellevue-based firm and the only single-office firm on Accounting Today's Top 100 list, with a strong Pacific Northwest tech startup and VC-backed company practice covering audit, tax and due diligence support.
- Moss Adams
West Coast's largest regional accounting and advisory firm (merged with Baker Tilly in 2025), with a Seattle office that serves growth-stage tech companies from seed through pre-IPO across audit, tax and transaction advisory.
- Bader Martin
Seattle-based boutique CPA firm with a long-standing reputation in the Pacific Northwest tech and professional-services community, providing tax, audit and advisory services to owner-managed and venture-backed businesses.
- Sweeney Conrad
Bellevue-based CPA firm serving high-growth technology companies and their founders across audit, tax planning and equity compensation advisory, with particular strength in the Microsoft and Amazon alumni founder community.
- Peterson Sullivan
Seattle-based mid-market firm with a dedicated technology industry practice, covering audit, tax and international tax advisory for venture-backed and PE-backed companies across the Pacific Northwest.
Financial modelling, FP&A and fundraise prep. We work alongside your accountant - not instead of them.
- Builds the financial model - revenue assumptions, headcount, unit economics, runway.
- Sets up the monthly FP&A cycle: budget, forecast vs actual, variance analysis.
- Puts together the monthly board pack - P&L, cash, KPIs and forward outlook.
- Prepares the fundraise: investor model, deck financials, data room and diligence prep.
- Keeps the cap table tidy and handles 409A valuations and stock option grants.
- Reports on the KPIs that move the business - ARR, gross margin, CAC payback, retention.
- Pressure tests hiring, pricing and big spend decisions against the model before the founder commits.
- Sits in board meetings and is embedded week-to-week, not just engaged annually for compliance.
We provide fractional CFO services across Seattle and beyond
Simple pricing
No hidden costs, no complicated long-term contracts. We understand how important flexibility is for Seattle startups.
Per month
- Accounting / FP&A tech stack implementation
- Monthly financial statements and reporting pack
- Quarterly board pack with detailed financial analysis (with variance analysis vs. budget, relevant KPI observations etc.)
- Investor-friendly output
Per month
- Everything in Core, plus
- Operating model (via an online platform like Runway or Excel-based)
- Ongoing model maintenance, refining projections, burn/runway management
- Customer cohorts modelling, churn and retention analysis
- LTV / CAC, unit economics analysis
- Cap table management
Per month
- Everything in Grow, plus
- M&A / fundraising support; review of business plan
- Pitch deck preparation
- Investor approach strategy / list building
- Due diligence support and deal negotiation
- Valuation as required and free access to Multiples Pro
Packages shown are illustrative, final pricing is tailored to client requirements.
Recently completed fractional CFO projects
Selected fractional CFO engagements and prior CFO experience.
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