Quanta

Startup

Quanta

AI-native general ledger with granular subledgers that produces real-time books for software companies from their Brex, Mercury and Stripe data, founded by two former Affirm engineers and backed by Accel.

Founded2023, San Francisco
FoundersHelen Hastings (CEO, formerly Affirm), Theodora Chu
StageSeries A
Total funding$19.7m
Last roundSeries A, $15m, December 2025, led by Accel
Earlier roundsSeed $4.7m, February 2025, led by Accel with Elad Gil
What it doesA proprietary ledger and subledgers that ingest bank, card and payments data and produce continuously updated financial statements, initially accepting only customers it can account for fully automatically
TractionSoftware companies and startups; grew from seed to Series A in ten months
PricingNot published
MarketsUS
PeersPuzzle, Kick, Truewind, Rillet, Campfire

Why it matters

Quanta raised $15 million from Accel ten months after its seed, on a bet that a ledger built for automation from the start beats automating QuickBooks. It is the purest version of the real-time accounting idea among the startup-focused vendors.

Updated September 2026.

Part of Accountio’s accounting technology coverage.