Flow raises $23M Series A from

Sequoia

Flow raises $23M Series A from

Sequoia

Flow is the AI-native systems engineering platform

Accelerate design and verification with AI built into every workflow. Purpose-built for mechanical, electrical, and software teams working on complex systems.

Flow is the AI-native systems engineering platform

Accelerate design and verification with AI built into every workflow. Purpose-built for mechanical, electrical, and software teams working on complex systems.

Flow is the AI-native systems engineering platform

Accelerate design and verification with AI built into every workflow. Purpose-built for mechanical, electrical, and software teams working on complex systems.

Intelligence for complex systems

Built for cross-functional teams

Reason across your entire system

Built on a unified systems graph, the AI reasons directly over your engineering data. Unlike legacy tools with bolt-on AI, this foundation was designed for iteration, verification, and learning in one place.

Reason across your entire system
Find hidden gaps across your system

Find hidden gaps across your system

Quickly understands relationships between requirements, design parameters, and verification. It can trace coverage and expose dependencies that would otherwise take days to find.

Eliminate slow, manual reviews

Instantly analyzes your requirements, architecture, and test data. It identifies vague, unverifiable, or missing items and suggests clear improvements.

Eliminate slow, manual reviews

Intelligence for complex systems

Built for cross-functional teams

Reason across your entire system

Built on a unified systems graph, the AI reasons directly over your engineering data. Unlike legacy tools with bolt-on AI, this foundation was designed for iteration, verification, and learning in one place.

Reason across your entire system
Find hidden gaps across your system

Find hidden gaps across your system

Quickly understands relationships between requirements, design parameters, and verification. It can trace coverage and expose dependencies that would otherwise take days to find.

Eliminate slow, manual reviews

Instantly analyzes your requirements, architecture, and test data. It identifies vague, unverifiable, or missing items and suggests clear improvements.

Eliminate slow, manual reviews

Intelligence for complex systems

Built for cross-functional teams

Reason across your entire system

Built on a unified systems graph, the AI reasons directly over your engineering data. Unlike legacy tools with bolt-on AI, this foundation was designed for iteration, verification, and learning in one place.

Reason across your entire system
Find hidden gaps across your system

Find hidden gaps across your system

Quickly understands relationships between requirements, design parameters, and verification. It can trace coverage and expose dependencies that would otherwise take days to find.

Eliminate slow, manual reviews

Instantly analyzes your requirements, architecture, and test data. It identifies vague, unverifiable, or missing items and suggests clear improvements.

Eliminate slow, manual reviews

Security

Runs Securely Within Your Environment

AI built for modern engineering workflows. Understand every connection across requirements, design, and verification to move faster, reduce errors, and build with confidence.

Private Inference

Full audit trail for all AI actions

Configurable for ITAR-aligned deployments

Private Inference

Your data never leaves your workspace. All AI processing happens within Flow’s controlled environment. No data is used for model training, and your compliance requirements stay fully intact.

Run AI reviews securely within your own environment

Protect proprietary data and IP at every step

Maintain compliance without slowing development

Private Inference

Security

Runs Securely Within Your Environment

AI built for modern engineering workflows. Understand every connection across requirements, design, and verification to move faster, reduce errors, and build with confidence.

Private Inference

Full audit trail for all AI actions

Configurable for ITAR-aligned deployments

Private Inference

Your data never leaves your workspace. All AI processing happens within Flow’s controlled environment. No data is used for model training, and your compliance requirements stay fully intact.

Run AI reviews securely within your own environment

Protect proprietary data and IP at every step

Maintain compliance without slowing development

Private Inference

More than half of Engineer’s time is spent on non-value add activities. The complexity of systems is increasing, but productivity isn’t. We need a team of 100 to do the work of 1000 - Flow makes this possible.

Design ICD’s and key interfaces

Define and document how system components connect and exchange information to ensure seamless integration.

Spot traceability gaps sooner

Spend more time designing by reducing rework and time spent chasing information.

Create test cases and plans

Build clear scenarios to verify system behaviour and performance against.

Run what if analysis to see the impacts of change

Simulate design modifications to understand their downstream effects before implementation.

Generate 0D and 1D python models for analysis

Automatically produce simplified physics-based models to analyze system behavior and performance.

Double your output Speed Up Critical work

Automate documentation and speed up your review meetings.

More than half of Engineer’s time is spent on non-value add activities. The complexity of systems is increasing, but productivity isn’t. We need a team of 100 to do the work of 1000 - Flow makes this possible.

Design ICD’s and key interfaces

Define and document how system components connect and exchange information to ensure seamless integration.

Spot traceability gaps sooner

Spend more time designing by reducing rework and time spent chasing information.

Create test cases and plans

Build clear scenarios to verify system behaviour and performance against.

Run what if analysis to see the impacts of change

Simulate design modifications to understand their downstream effects before implementation.

Generate 0D and 1D python models for analysis

Automatically produce simplified physics-based models to analyze system behavior and performance.

Double your output Speed Up Critical work

Automate documentation and speed up your review meetings.

More than half of Engineer’s time is spent on non-value add activities. The complexity of systems is increasing, but productivity isn’t. We need a team of 100 to do the work of 1000 - Flow makes this possible.

Design ICD’s and key interfaces

Define and document how system components connect and exchange information to ensure seamless integration.

Spot traceability gaps sooner

Spend more time designing by reducing rework and time spent chasing information.

Create test cases and plans

Build clear scenarios to verify system behaviour and performance against.

Run what if analysis to see the impacts of change

Simulate design modifications to understand their downstream effects before implementation.

Generate 0D and 1D python models for analysis

Automatically produce simplified physics-based models to analyze system behavior and performance.

Double your output Speed Up Critical work

Automate documentation and speed up your review meetings.

Powering the planet's fastest-moving hardware teams

Agile Systems Engineering Handbook

We work with the next generation of hardware companies building complex systems for space, defense, satellites, robotics, new energy nuclear and fusion technologies.

impulse-spaceI
Joby Aviation
stoke-logo
astranis-logo
Radiant

Backed by top investors & operators

Flow is supported by visionaries driving the new golden age of hardware and by industry leaders who have set the standard for collaboration tools in other fields. Read more

Sequoia

Patrick & John Collison

CEO, Stripe

Kyle Parrish

Former VP Sales, Figma

David Helgason 

Former CEO, Unity

Powering the planet's fastest-moving hardware teams

Agile Systems Engineering Handbook

We work with the next generation of hardware companies building complex systems for space, defense, satellites, robotics, new energy nuclear and fusion technologies.

impulse-spaceI
Joby Aviation
stoke-logo
astranis-logo
Radiant

Backed by top investors & operators

Flow is supported by visionaries driving the new golden age of hardware and by industry leaders who have set the standard for collaboration tools in other fields. Read more

Sequoia

Patrick & John Collison

CEO, Stripe

Kyle Parrish

Former VP Sales, Figma

David Helgason 

Former CEO, Unity

Powering the planet's fastest-moving hardware teams

Agile Systems Engineering Handbook

We work with the next generation of hardware companies building complex systems for space, defense, satellites, robotics, new energy nuclear and fusion technologies.

impulse-spaceI
Joby Aviation
stoke-logo
astranis-logo
Radiant

Backed by top investors & operators

Flow is supported by visionaries driving the new golden age of hardware and by industry leaders who have set the standard for collaboration tools in other fields. Read more

Sequoia

Patrick & John Collison

CEO, Stripe

Kyle Parrish

Former VP Sales, Figma

David Helgason 

Former CEO, Unity