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London, United KingdomExeter, United KingdomPortsmouth, United KingdomCarrollton, Texas, United StatesLondon, United KingdomExeter, United KingdomPortsmouth, United KingdomCarrollton, Texas, United States
I
Products & Solutions
MasonOS
MasonOS
Isembard's proprietary operating system for precision manufacturing. It unifies quoting, production scheduling, supply chain tracking, quality management and delivery coordination across the factory network. Using machine learning, it generates instant quotes from component geometry and materials, adjusts machine assignments in real time and runs AS9100D-compliant quality workflows. It also supports robotics integration on modern CNC equipment.
Precision Manufacturing Services
Precision Manufacturing Services
Isembard's factories produce complex machined components and assemblies for aerospace, defence, satellite and nuclear customers. Current capabilities include 5-axis milling and turning, assembly and injection moulding, with fabrication, forging, casting, additive manufacturing and wire harness production planned. Components are manufactured to tight tolerances for critical applications and all production runs through MasonOS for scheduling and quality assurance.
Franchise Programme
Franchise Programme
Isembard's franchise model allows independent machine shops to integrate MasonOS and join the Isembard factory network. Franchisee factories gain access to the software platform, Isembard's certifications and its customer pipeline. The model lets Isembard scale manufacturing capacity quickly without building every facility itself, targeting independent manufacturers across the UK, Europe and the US.
Videos
Forge Industrial Acceleration
About
Isembard is a software-first manufacturing company founded in 2024 and headquartered in London. It operates a distributed network of precision factories across the UK and US, producing high-precision components for aerospace, defence, satellites and nuclear energy customers. The company is named after Isambard Kingdom Brunel, the 19th-century engineer who reshaped British infrastructure.
Offices
London, United KingdomExeter, United KingdomPortsmouth, United KingdomCarrollton, Texas, United StatesBacked by
Union Square VenturesNotion CapitalIQ CapitalTamarack GlobalCIV201 VenturesBasis CapitalForward FundMaterial VenturesNeverlift VenturesNP-Hard Ventures
Customers & Partners
Third Planet OrbitalImperial College Space Society
Timeline
2026-03
Raised $50 million Series A led by Union Square Ventures, with Tamarack Global, IQ Capital, Notion Capital and CIV, to fund expansion to 25 factories across the UK, US, Germany, France and Ukraine.
2026-02
Opened London factory in Park Royal.
2025-10
Launched franchise programme to expand the factory network with independent machine shops.
2025-09
Launched MasonOS publicly and announced partnership with Third Planet Orbital.
2025-04
Raised $9 million seed round led by Notion Capital, with participation from 201 Ventures, Basis Capital, Forward Fund, Material Ventures, Neverlift Ventures and NP-Hard Ventures.
2024
Founded in London by Alexander Fitzgerald.
Open Positions (20)
5 Software & Data4 Operations3 Strategy2 Finance2 Business Development1 Marketing1 Legal & Compliance1 Hardware & Systems1 Product & Project
I
Products & Solutions
MasonOS
MasonOS
Isembard's proprietary operating system for precision manufacturing. It unifies quoting, production scheduling, supply chain tracking, quality management and delivery coordination across the factory network. Using machine learning, it generates instant quotes from component geometry and materials, adjusts machine assignments in real time and runs AS9100D-compliant quality workflows. It also supports robotics integration on modern CNC equipment.
Precision Manufacturing Services
Precision Manufacturing Services
Isembard's factories produce complex machined components and assemblies for aerospace, defence, satellite and nuclear customers. Current capabilities include 5-axis milling and turning, assembly and injection moulding, with fabrication, forging, casting, additive manufacturing and wire harness production planned. Components are manufactured to tight tolerances for critical applications and all production runs through MasonOS for scheduling and quality assurance.
Franchise Programme
Franchise Programme
Isembard's franchise model allows independent machine shops to integrate MasonOS and join the Isembard factory network. Franchisee factories gain access to the software platform, Isembard's certifications and its customer pipeline. The model lets Isembard scale manufacturing capacity quickly without building every facility itself, targeting independent manufacturers across the UK, Europe and the US.
Videos
Forge Industrial Acceleration
Open Positions (20)
5 Software & Data4 Operations3 Strategy2 Finance2 Business Development1 Marketing1 Legal & Compliance1 Hardware & Systems1 Product & Project
About
Isembard is a software-first manufacturing company founded in 2024 and headquartered in London. It operates a distributed network of precision factories across the UK and US, producing high-precision components for aerospace, defence, satellites and nuclear energy customers. The company is named after Isambard Kingdom Brunel, the 19th-century engineer who reshaped British infrastructure.
Offices
London, United KingdomExeter, United KingdomPortsmouth, United KingdomCarrollton, Texas, United StatesBacked by
Union Square VenturesNotion CapitalIQ CapitalTamarack GlobalCIV201 VenturesBasis CapitalForward FundMaterial VenturesNeverlift VenturesNP-Hard Ventures
Customers & Partners
Third Planet OrbitalImperial College Space Society
Timeline
2026-03
Raised $50 million Series A led by Union Square Ventures, with Tamarack Global, IQ Capital, Notion Capital and CIV, to fund expansion to 25 factories across the UK, US, Germany, France and Ukraine.
2026-02
Opened London factory in Park Royal.
2025-10
Launched franchise programme to expand the factory network with independent machine shops.
2025-09
Launched MasonOS publicly and announced partnership with Third Planet Orbital.
2025-04
Raised $9 million seed round led by Notion Capital, with participation from 201 Ventures, Basis Capital, Forward Fund, Material Ventures, Neverlift Ventures and NP-Hard Ventures.
2024
Founded in London by Alexander Fitzgerald.
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