Requirements management and AI agents for hardware teams: a live systems graph linking requirements, architecture, CAD, simulation and test
Flow Engineering builds a requirements and systems-engineering platform for hardware teams that iterate like software companies. Instead of a static requirements database, Flow keeps requirements, architecture, interfaces, budgets and tests in a live systems graph tied into CAD, simulation, code and test tools, so engineers can branch a proposed change and see its impact before it merges; its v3 release in June 2026 added AI agents for impact analysis, mass/cost/power budgets and compliance. Customers include Rivian (about 1,500 engineers designing R1, R2 and R3 in Flow), Joby, Skydio, Astranis, Stoke, Isar Aerospace, Pacific Fusion and Xcimer Energy, and in February 2026 Rivian and Volkswagen Group Technologies (RV Tech) signed a three-year strategic partnership to run their software-defined-vehicle engineering on it. Founder and CEO Pari Singh, a London-raised Imperial College mechanical engineer, raised an $8.5M seed led by EQT Ventures in 2022 and a $23M Series A led by Sequoia in October 2025, when the company moved its headquarters from London to San Francisco and Roelof Botha joined the board.
Business/Productivity Software📍 San Francisco, CAFounded 2016
Current Valuation
Private
PRIVATE
IPO Outlookprivate
Is Flow Engineering going public?
No. Flow Engineering is private and has not filed to go public. There is no S-1 on file.
What is Flow Engineering's valuation in 2026?
No confirmed valuation is on record for Flow Engineering. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Flow Engineering filed an S-1?
No public S-1 is on file for Flow Engineering.
Who are Flow Engineering's investors?
Flow Engineering's investors include Sequoia Capital, EQT Ventures, Backed VC, Patrick Collison, John Collison, David Helgason and 3 more.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Pari Singh
Founded
2016
HQ
San Francisco, CA
Employees
25
Total Raised
$31.5M
Est. Revenue
$4M (2026-02)
Last Round
Series A — $23M (Oct 2025) · Lead: Sequoia Capital
IPO Status
private
Fundraising Status
Series A · $23M · 11 mo ago
privateTotal raised $31.5M2 disclosed rounds
Growth & Valuation
Capital raised per round
Charts built from publicly disclosed funding rounds and revenue estimates. Approximate, not real-time, not investment advice.
Funding History
Round
Amount
Date
Lead Investor
Post-Money
Series A
$23M
Oct 2025
Sequoia Capital
—
Seed
$8.5M
Dec 2022
EQT Ventures
—
Vertical Intelligence — Defense / Aerospace
No name-verified federal prime awards for Flow Engineering in the last 36 months on USASpending.gov — revenue may be classified, flow through subcontracts, or be non-US. Absence of a registry match is reported as-is.
Checked usaspending.gov as of 2026-09-13. Re-checked weekly.
Talent Signal
Hiring data for Flow Engineering has not been collected yet — the monthly talent sweep hasn't reached this company. Check back soon.
Founders & Key People
Pari Singh
Investors
Sequoia Capital · EQT Ventures · Backed VC · Patrick Collison · John Collison · David Helgason · Kyle Parrish · Charlie Songhurst · Matt Clifford
Products
Flow requirements platform - iterative requirements and key design parameters (mass, power, thermal, interfaces) that every mechanical, electrical and software engineer works from, with branching, merging and baselines
Systems graph - requirements, architecture, interfaces, components, tests and compliance evidence linked in one flexible data model so a change shows its downstream impact
Flow Agents (Flow v3, launched June 2026) - impact-analysis, mass/cost/power budget and safety/regulatory compliance agents plus user-built agents that propagate changes across CAD, simulation, code and test
Integrations - CAD (Dassault, Siemens NX, Fusion 360, SolidWorks), simulation (ANSYS, Abaqus), GitHub, and test tooling (LabVIEW, TestStand, dSPACE)
Regulated deployments - cloud, GovCloud or self-hosted, with ITAR/EAR alignment, NIST 800-171/CUI and SOC 2 Type II
Requirements ManagementSystems EngineeringHardware EngineeringEngineering SoftwareAI AgentsAerospaceAutomotiveDefenseSeries A
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.