UK Advanced Manufacturing Startup Holdson Raises €1.7 Million To Expand Electroform Surface Finishing Technology

The funding round was led by the Northern Powerhouse Investment Fund II (NPIF II), managed by Praetura Ventures (soon PXN Group, pending FCA approval), contributing €571k, with participation from Oval Investments, Hamilton Capital Partners, and Sands Capital.

Aaron Holt, CEO of Holdson, said: “The additive and related industries have reached a point where the conversation has shifted from ‘how do we make this?’ to ‘how do we make it better?’. Customers want stronger, more efficient, more reliable components, produced in greater volumes and with ever more complex designs. electroform delivers those gains while staying competitive on cost, and that’s why we’re seeing such strong adoption from OEMs.”

Holdson’s €1.7 million raise positions it within a growing wave of European DeepTech and industrial scale-ups in 2025, as investors continue backing companies developing advanced manufacturing tools and processes.

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UK companies like Atomik AM and PhysicsX have also raised funding this year from smaller seed rounds such as CloEE’s €520k to major investments like PhysicsX’s €117 million and Proxima Fusion’s €130 million, showing the sector’s range and growth.

Although smaller than the largest DeepTech rounds, Holdson’s funding fits its stage and focus demonstrating continued investor interest in industrial technologies that drive advanced manufacturing and post-processing innovation.

Founded in 2023 through a collaboration between engineers, entrepreneurs, and Huddersfield-based Cummins Turbo Technologies, Holdson has grown to 18 employees, serving customers across the UK, Europe, the US, and Asia.

Specializing in electrochemical surface finishing, Holdson’s electroform technology offers high-precision, acid-free polishing that improves component performance, extends fatigue life, and enables finishing of complex internal geometries. Serving aerospace, defence, medical, and energy sectors, its solutions streamline post-processing, reduce manual work, and scale production of both additively manufactured and traditional metal parts.

Laurence Tan, Investment Associate at Praetura Ventures, said:“The advanced manufacturing space is critical to a number of key industries, including the automotive, aerospace and defence sectors, where vital parts and components are growing more complex with each passing year. Holdson is an example of a thriving Northern company that’s making these innovations possible. The company has the talent and the technology to continue scaling globally, and we’re pleased to be backing the team on their journey with NPIF II funding to supercharge their growth.”

Electroform is an electromechanical finishing process that improves metal part performance both cast and 3D-printed by smoothing surfaces and eliminating imperfections.

The technology supports manufacturers in designing for post-processing, enhancing part quality, reducing bottlenecks, and enabling more scalable operations.

Holdson plans to use the funding to scale production of its electroform™ devices and machines, which are gaining traction for boosting efficiency, precision, and durability in metal components.

About Holdson

Holdson delivers advanced electrochemical post-processing solutions for additive-manufactured components. Made in the UK, its technologies provide up to six times faster polishing than alternatives, enhancing performance, durability and safety and transforming post-processing for manufacturers in the additive manufacturing industry.