Flow Engineering

Flow Engineering is an AI-native requirements management and systems-engineering platform for hardware teams in aerospace, automotive, defense, robotics and energy. Its AI agents keep requirements aligned with CAD, simulation, code and test results, so engineers stop maintaining traceability by hand in spreadsheets or legacy tools like IBM DOORS.

Flow Engineering builds a living system of record for physical-product development. Requirements, interfaces, designs and tests sit in a connected systems graph, and engineers propose changes on git-style branches with diffs and merges. AI agents work across that graph. An Impact Analysis Agent evaluates each change across its dependencies, a Mass, Cost and Power Budget Agent tracks resource allocations, and a Safety and Regulatory Compliance Agent checks standards on every change. Teams can also build custom agents. According to Contrary Research, the agents can write and decompose requirements, generate tests, create tickets and update downstream documentation, using a routing LLM to select context. Flow integrates with CAD (Dassault, Siemens NX, Autodesk Fusion 360, SolidWorks), simulation (ANSYS, Abaqus), test (LabVIEW, TestStand, dSPACE), GitHub, Jira and Microsoft tools. It is SOC 2 Type II certified, ITAR/EAR aligned and NIST 800-171 compliant, and deploys in the cloud, in AWS GovCloud or self-hosted. Flow grew out of founder Pari Singh's rocket-engine consultancy. It entered private beta in February 2023 and shipped the AI-native Flow v3 in June 2026. Customers include Rivian, which Contrary reports expanded from 40 to 1,500 users and manages over a million requirements in Flow, plus Joby Aviation, Anduril, Astranis, Stoke Space and Skydio. Sequoia led a $23M Series A in October 2025, and Valor Equity Partners and Atreides Management co-led a $50M Series B at a $750M valuation in September 2026. Flow competes with Jama Connect, IBM DOORS, Siemens Polarion and Valispace.

Category

Industry & Government

Pricing

Subscription, Contact for pricing

Target Market

CTOs, VPs of Engineering, Systems Engineers, Hardware Engineering Teams

Deployment

Cloud-first, Self-hosted

Founded

2023

Headquarters

San Francisco, USA

Team Size

11-50

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  Connected systems graph

  Links requirements, interfaces, designs and tests in one live model, so traceability is maintained automatically rather than in spreadsheets.

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  Impact Analysis Agent

  Evaluates every proposed change across its dependencies and flags conflicts before they propagate into designs and tests.

• ✓
  Mass, Cost and Power Budget Agent

  Continuously tracks resource budgets across subsystems so teams see when a design change breaks a mass, cost or power allocation.

• ✓
  Safety and Regulatory Compliance Agent

  Checks each change against applicable safety and regulatory standards, cutting manual compliance review in regulated industries.

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  Branch-and-merge change workflow

  Engineers propose requirement changes on branches with diffs and review, bringing git-style change control to hardware development.

• ✓
  Engineering tool integrations

  Connects to Siemens NX, SolidWorks, Fusion 360, ANSYS, Abaqus, LabVIEW, dSPACE, GitHub and Jira, so agents work on real engineering data.

• •
  Vehicle requirements at scale

  Rivian manages more than one million hardware and software requirements in Flow after expanding from 40 to 1,500 users in four months.

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  Design change impact

  When a CAD part or simulation result changes, agents identify which requirements, tests and budgets are affected and propose updates.

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  Regulated aerospace certification

  eVTOL and space teams keep requirement-to-test traceability current for regulators instead of reconstructing it before audits.

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  Defense programmes on GovCloud

  Defense contractors run Flow in ITAR-compliant AWS GovCloud to manage controlled technical requirements with full audit trails.

Flow publishes list pricing per editor per month: Basic at $150 (500 requirements, 1 project) and Pro at $300 (5,000 requirements, 5 projects). Viewer licences are separate from editor seats. SSO/SAML, GovCloud, unlimited scale and custom integrations are Enterprise-only at custom pricing. A free trial is offered. Contrary Research reports the company plans to move toward usage-based, token-consumption pricing as agents do more of the work.

This page was written from 6 sources, 4 on domains other than flowengineering.com.

1. 1.flowengineering.com — flowengineering.comvendor
2. 2.flowengineering.com — pricingvendor
3. 3.techcrunch.com — valor atreides and sequoia back ai startup flow engineering
4. 4.research.contrary.com — flow engineering
5. 5.sequoiacap.com — partnering with flow the agile hardware future
6. 6.finance.yahoo.com — exclusive flow engineering raises 23 094816163