Stop flying blind on your runway. These five fractional CFO services help seed to Series B founders build investor-ready financials, extend cash, and close rounds faster.
The Fractional CFO Landscape for US Startups
Hiring a full-time CFO is overkill for most seed and Series A companies. But investors still expect board-ready models, clean data rooms, and a monthly rhythm of KPIs and variance reports. That gap has fueled the rise of fractional CFO firms that embed with your team part-time. In 2026, record venture funding has raised the bar for financial reporting, making specialized advisory more critical than ever. The firms below serve different stages and niches, from YC-backed founders to venture-backed scale-ups.
How We Evaluated These Fractional CFO Services
We looked at service scope, stage specialization, pricing clarity, and founder fit. ShardCFO stands out for its seed-to-Series B focus and transparent free assessment. Burkland impresses with its full-stack finance and HR offerings across every stage. Flow Partners shines for seed-stage operating models and cohort frameworks. Kranz Consulting brings deep technical accounting and VC fund administration expertise. Silicon Valley Finance Group offers Bay Area roots and a track record of helping startups raise over $1 billion. Each firm serves a slightly different need, so match your stage and gaps to the right partner.
Here is a quick snapshot of each firm's sweet spot, so you can see which one aligns with your startup's stage and immediate finance needs.
| Provider | Best For |
|---|---|
| Burkland | Startups wanting an all-in-one finance and HR partner |
| ShardCFO | Fractional CFO for Seed to Series B Startups | Seed to Series B tech startups needing fundraising and runway support |
| Flow Partners | Seed-stage startups building their first operating model |
| Kranz Consulting | Startups with complex accounting or M&A needs |
| Silicon Valley Finance Group | Bay Area startups seeking local, hands-on financial leadership |
The 5 Fractional CFO Services in Focus
#1 Burkland
A screenshot of the Burkland website.
Burkland is a full-stack finance and HR partner for venture-backed startups, offering fractional CFO services alongside accounting, tax, and payroll. They support companies from pre-seed through growth and pre-exit, with a dedicated investor-ready in 90 days program. Their team has helped clients raise over $25 billion, making them a go-to for founders who want one firm to handle multiple back-office functions. If you need a broad support system that scales with you, Burkland is worth a serious look. You can explore their fractional CFO offering at burklandassociates.com.
#2 ShardCFO | Fractional CFO for Seed to Series B Startups
A screenshot of the ShardCFO website.
ShardCFO is built specifically for seed to Series B tech founders who need investor-ready financials without a full-time CFO salary. Their services cover three-statement modeling, unit economics, 13-week cash forecasting, fundraising data room prep, and board materials. They embed with your team to build the financial infrastructure investors expect, from first pitch deck to Series B board meetings. With a focus on YC-backed founders and over $50 million raised by clients, they understand the pace and pressure of high-growth startups. Start with a free assessment at shardcfo.com to see where your runway stands.
#3 Flow Partners
A screenshot of the Flow Partners website.
Flow Partners specializes in fractional CFO services for seed-stage startups, helping you build the operating model that investors will pressure-test at Series A. They set up your monthly FP&A cycle, board pack, and cohort retention framework so growth is measured for efficiency, not just speed. Their driver-based models connect pipeline to ARR, hiring to cost, and retention to LTV, giving you a single source of truth for capital allocation. If you have just closed a seed round and need to establish financial discipline early, Flow Partners is a strong fit. Learn more at flowpartners.io.
#4 Kranz Consulting
A screenshot of the Kranz Consulting website.
Kranz Consulting provides fractional CFO and strategic finance services with deep expertise in technical accounting, audit preparation, and M&A support. They work with VC-backed startups across sectors like SaaS, fintech, and healthcare, and also offer private capital fund administration. Their team helps you navigate complex transactions, from IPO and SPAC readiness to digital asset accounting. If your startup faces intricate accounting or compliance challenges, Kranz brings the technical firepower you need. Visit kranz.consulting to see their full range of services.
#5 Silicon Valley Finance Group
A screenshot of the Silicon Valley Finance Group website.
Silicon Valley Finance Group (SVFG) offers fractional CFO services with a Bay Area focus, helping startups manage growth, fundraising, and cash flow without a full-time hire. They provide strategic and transactional guidance, FP&A, data analytics, and compliance support. Their team has helped venture-backed startups raise over $1 billion, and they emphasize practical advice for early-stage companies. If you value a local presence and a hands-on approach to financial leadership, SVFG is a solid option. Check them out at svfgroup.com.
How to Choose the Right Fractional CFO for Your Startup
Start by identifying your biggest gap. Are you prepping for a Series A and need a bulletproof model? ShardCFO or Flow Partners might be your match. Do you need accounting, tax, and HR under one roof? Burkland could save you from juggling vendors. If technical accounting or M&A is on the horizon, Kranz Consulting brings that depth. And if you want a Bay Area-based partner with a strong fundraising track record, Silicon Valley Finance Group is worth a call. Always ask about pricing clarity, stage specialization, and whether they offer a free assessment or trial period. The right fit will feel like an extension of your team, not just another consultant.
Automating Your Finance Stack with a Fractional CFO
A fractional CFO does more than build models. They help you automate the boring stuff so you can focus on growth. Expect them to set up KPI dashboards, integrate your accounting software with BI tools, and create a monthly reporting rhythm that runs on autopilot. ShardCFO, for example, offers management reporting infrastructure and automated KPI dashboards. Flow Partners builds driver-based models that update as your data flows in. Burkland can connect your payroll, tax, and bookkeeping systems. The goal is real-time, decision-ready financial insights without you manually pulling spreadsheets every month.
The Bottom Line on Fractional CFO Services
You do not need a full-time CFO to raise a round or extend your runway. The five firms here prove that fractional expertise can deliver investor-ready financials, strategic counsel, and board-level reporting at a fraction of the cost. ShardCFO is purpose-built for seed to Series B tech founders, while Burkland, Flow Partners, Kranz, and SVFG each bring distinct strengths. Match your stage, sector, and immediate pain points to the right partner, and you will stop flying blind and start building with confidence.