About us
Finance operators who've been in the startup trenches.
We're not a traditional accounting firm. We're a team of finance operators who've worked inside high-growth startups — and built Black Sea Partners to give every founder access to that same caliber of financial expertise.
Remote-first
Fully distributed team, built for async collaboration with startups anywhere.
Startup-ready
We onboard fast and get your books clean from the very first month.
Scale ceiling
We grow with you from first hire through your most complex funding rounds.
Investor-ready
Your financials are board-ready every month — not just at year-end.
Our story
Built from the inside out.
Black Sea Partners was founded by operators who spent years running finance at venture-backed startups. We saw firsthand how much time founders lost to messy books, late closes, and reactive financial management — and how much that cost them at critical moments like fundraising, board meetings, and audits. We built this firm to solve that problem. Not with a one-size-fits-all accounting package, but with a dedicated team that embeds into your operations, learns your business, and delivers the financial clarity you need to make fast, confident decisions.
Precision over volume
We take on fewer clients so we can go deeper on each one. Your books get the attention they deserve.
Startup-native
We understand equity, burn rate, and investor reporting because we've lived it — not just studied it.
Remote-first by design
Our workflows are built for distributed teams. Async-friendly, always available, no office required.
Proactive, not reactive
We flag issues before they become problems. You shouldn't have to ask — we should already be telling you.
Our expertise
Deep specialization in startup finance.
Venture-backed startups
Pre-seed through Series B. We know what investors expect and how to get your books there.
SaaS & recurring revenue
ARR, MRR, churn, deferred revenue — we model and report the metrics that matter for SaaS.
Multi-state compliance
Distributed teams and multi-state operations handled cleanly, from payroll tax to nexus analysis.
Fundraising readiness
We've helped founders walk into diligence with clean, investor-ready financials that close rounds faster.
Tool stack integration
QuickBooks, Gusto, Stripe, Ramp, Brex, Rippling — we connect and automate your finance stack.
R&D tax credits
We identify and document qualifying R&D expenses so you capture every dollar of credit you're owed.
Let's talk about your books.
Whether you're starting from scratch or inheriting a mess, we'll tell you exactly what it takes to get your finances in order.