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Watch our founder's story - from rockets to revolutionary software here

Requirements tracking built to help agile teams design faster

Capture, validate and manage change across your cross-functional team's hardware & software requirements
No credit card required

Powering the Pioneers of the Next Frontier

Phase FourRadiant NuclearSpace Machines CompanyUniversal HydrogenSuper73Brinc
Built by engineers from Aerospace, Automotive and F1
Our team is built on a foundation of engineers that have felt the pain directly in companies from across the industry, from Formula 1 to Aerospace to Renewables.
Funded by the Leaders of Climate Tech & Hardware
Flow is funded by a combination of those passionate about the new golden age of hardware, and those from companies championing collaboration in other industries.

Get your product to market 35%* faster

Manage multiple configurations
Get your team on the same page with a requirements platform that offers clarity, insights and peace of mind.
Discover conflicts immediately
Don't wait until its too late to discover today's mistakes. Flow keeps your team aligned with the latest requirements to prevent surprises.
Ensure regulatory compliance
Eliminate hours of trawling through emails, meetings and sharepoint to find key information and focus on the real engineering design work.

Find clarity and calm in your chaos

Easy to use

Capture, share and assign requirements

  • Single Source of Truth

    Keep the entire engineering team aligned with up to date requirement verification statuses that everyone can access.

  • Collaborate and Discuss

    Fully flexible and customizable in order to adapt to your existing workflow without dedicated database administrators or power users required.

  • Fast & Lightweight User Interface

    No training required. Bring your team in without weeks of training from "the consultants".

Tom Burns approved a change to a requirement

The torsional rigidity shall be at least 27,000 Nm/deg

Hector White verified
REQ-101Total Mass
by linking CAD data
Hallie Serrano created v3 of
Deflection Calcs.xlsDeflection Calcs.xls
Tiffany Gonzales assigned Paul Smith as the owner of a requirement
Tom Burnsadded a comment

Can we revise the test spec @Peter to include tensile testing of a material sample to help with final sign-off?


Seamlessly link requirements to design

  • Live status of your verification

    Track the status of your current requirements through integrations to design and test data and updates to offer real-time verification on demand.

  • Integrated with Key Design Tools & Open API

    Flow allows you to seamlessly pull data from the tools your team use every day including CAD, Simulation, Excel, Python, and Matlab.

  • Team Notifications on Requirements Progress

    Stay up to date on the latest requirements status with change notifications, update discussions, and progress history to never miss a beat.

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Traceability from design to release

  • Visualization & Dashboards

    The ultimate control panel for your requirements with view options like project-wide statuses, powerful filters, hierarchical tree views, and impact analysis.

  • Track Requirements Over Time

    Baseline your project at each stage gate to track your forward progress for each design review without needing to hunt down numbers from engineers.

  • Extend Traceability to Include Design Models

    Flow tracks the change history (what changed, who changed it, and why) ensuring absolute traceability, compliance and peace of mind.

RequirementTotal massTest DataBuckling testresults.csvModelMain shaft CAD modelSiemens NXValueCentre of gravity[100, 250, 14]RequirementSupport massModelBearing assembly CADOnshapeModelFatigue calcsmatlab.mSimulationVibration frequencyAnsysRequirementSub-frame mass
Built for cross-functional teams

Go faster without compromising regulatory compliance

System Engineers
Chief Engineers
Technical Engineers

In Control Systems Engineers

Spend less time chasing down requirements updates from your engineers and spend more time optimizing your system to build better products.

  • Save dozens of hours for each design review
  • Automated verification from your team & tools
  • Identify problems before it's too late
In Control Systems Engineers

Bring clarity and alignment to your messy workflow

without flow

Lightweight but powerful

Replace the hassle of manually updating spreadsheets or using cumbersome enterprise tools by upgrading your workflow with collaborative requirements management that's always up to date, for everyone.
Agile and scalable
Built for waterfall
IBM Doors
ITAR Compliance
Continuous Verification
Baselines, config, history
Accessibility & Collaboration
Fast, Flexible & Easy
Onboarding Time
Instant access & 14 days Full Implementation
63 Days onboarding plan
Extended Multi-month
Implementation & Training
Matlab, Python, PLM Simulation, Excel
Ansys, Matlab, some PLM
Approx Cost (6 Editors)
projects in Flow
requirements created
< 0mins
setup time

Get started in minutes — evolve process as you go

So Intuitive Engineers Actually Enjoy Using It
So Intuitive Engineers Actually Enjoy Using It
Built as the easy to use alternative to clunky enterprise software. Flow's state of the art interface makes sense from big picture overviews to tiny detail spec changes.
Flexible to Match Your Existing Process
Flexible to Match Your Existing Process
We're streamlining, not replacing your workflow, so Flow is designed to accommodate your agile team's needs with various configuration options and custom fields.
Fully Onboard Your Org Within 2 Weeks
Fully Onboard Your Org Within 2 Weeks
Don't wait until the next failed stage gate review to implement Flow. It doesn't take months to  set up, your team will onboard effortlessly, and you'll start saving time within weeks.

Frequently asked questions

Everything you need to know about the product and billing.

Supercharge development with Flow's next-generation requirements platform

Flow is the requirements management solution you've been waiting for. Lightweight enough to speed up your workflows, and rigorous enough to never worry about compliance and traceability again.

Don't wait to discover today's mistakes 90 days from now, add Flow now to prevent costly mistakes and accelerate your development.

Agile Requirements Report

How do you maintain rigour in an early-stage engineering team without getting bogged down in bureaucracy?

Space Industry - Case study

Karman+ needed to manage complex requirements whilst maintaining a rapid iteration schedule. Find out how they are able to do 2x the number of design iterations per project.

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Providing new-age engineering companies with a requirements tool that is built specifically for their needs and allows them to focus on engineering ground breaking products.