The UK remains one of Europe's most established markets for custom metal castings, supported by a long industrial heritage in sand, gravity die, and investment casting alongside accredited offshore partners who supply higher-volume custom parts at lower cost. For procurement buyers sourcing custom metal castings or custom precision parts in the UK, the supply base ranges from traditional domestic foundries with decades of process expertise to specialist investment casting manufacturers offering full-service design, casting, and finishing for demanding industries such as automotive, aerospace, oil & gas, rail, and defence.
Below are 5 of the leading metal casting suppliers and manufacturers serving the UK market, covering both domestic foundries and accredited overseas partners capable of producing custom castings to specification.
The UK Top 5 Leading Metal Casting Suppliers
The following are the main players in custom metal casting supply for the UK market:
1. NovaCast Limited
Company Profile
Established in 1979, NovaCast has grown from a small specialist non-ferrous metals foundry in Melksham, UK, into an ISO 9001:2015 accredited single-source supplier of custom precision cast and machined components, serving international clients across transport, oil & gas, defence, and general engineering with highly diverse part specifications.
NovaCast's design engineering team uses casting simulation, 3D modelling, 3D printing, and 3D-scan-based reverse engineering to support custom part development, reducing lead times and improving first-time quality on complex or technically challenging castings. The company has particular expertise in pressure-tight valve and industrial pump components, complex non-ferrous castings, and safety-critical parts for harsh environments, with the flexibility to convert complex fabrications and weldments into single custom castings where that route is cheaper, lighter, or more durable.
Location: Melksham, UK
Company Type: Manufacturer
Website: https://www.novacast.co.uk/
Main Products
- Sand Casting
- Shell Mould Casting
- Gravity Die Casting
- Pressure Die Casting
- Investment Casting
- Silica Sol Casting
- Lost Foam Casting
- Custom Machined & Finished Castings
2. Besser Casting Co., Ltd.
Company Profile
Besser was established in 2002, covers an area of 12,000 square meters, and has about 170 professional and technical personnel. Their investment casting factory holds IATF16949:2016 and ISO9001:2015 certifications, with an in-house machining workshop for secondary processing so tolerances on custom metal parts can be strictly controlled before shipment.
- A real production factory, not a trading company
- Custom investment casting partner to more than 400 companies across 10+ countries
- Experience producing more than 4,000 different custom part structures and materials
For UK buyers comparing domestic foundries against competitively priced offshore manufacturing, Besser offers full-process custom investment casting — from wax pattern tooling through ceramic shell building, casting, and finishing — for buyers who want to manage cost without sacrificing material certification or dimensional consistency.
Location: Zhejiang, China
Company Type: Manufacturer
Website: https://www.bessercasting.com/
Main Products:
- Stainless Steel Investment Castings
- Carbon Steel Investment Castings
- Alloy Steel Investment Castings
- Nickel Alloy Investment Castings
- Custom Precision Lost Wax Castings
3. Dean Group International
Company Profile
Founded in 1972 as Manchester Investment Castings, Dean Group International is a family-owned custom metal casting manufacturer with two production sites in Manchester, supplying critical custom parts via investment casting, die casting, metal injection moulding, and forging to demanding sectors including oil & gas, aerospace, defence, rail, and general engineering.
Alongside UK-manufactured commercial and precision-grade investment castings, the company runs an in-house aluminium investment casting line (the ELITE process) for high-integrity aerospace, military, and motorsport components, and also offers fully risk-managed, ISO/TS-accredited overseas supply for higher-volume, lower-cost custom castings. Every part — whether cast in the UK or sourced through Dean Group's audited China supply chain — goes through full visual, dimensional, chemical, and mechanical testing before it ships, supported by rapid prototyping and 3D CAD design for custom part development.
Location: Manchester, UK
Company Type: Manufacturer
Website: https://www.deangroup-int.co.uk/
Main Products
- Investment Castings (Commercial & Precision Grade)
- Aluminium Investment Castings (ELITE Process)
- High Pressure & Gravity Die Castings
- Forged Components
- Metal Injection Moulded (MIM) Parts
4. Cast Metals Federation
Company Profile
The Cast Metals Federation (CMF) is not a foundry itself, but the UK's single representative trade body for the cast metals industry, with a membership of 150+ accredited foundries and suppliers that together account for roughly 85% of all UK castings output. For buyers researching where to source custom metal castings or custom parts domestically, CMF's member directory is a useful starting point — it lets you filter verified UK foundries by alloy, casting process, weight range, and certifications before approaching them directly for a quote.
CMF members collectively cover the full range of UK casting capability, from small jobbing foundries producing short-run custom parts to large manufacturing groups supplying global automotive, aerospace, rail, and defence programmes. Membership requires an operating UK production facility and adherence to CMF's quality and professional standards, which gives buyers a reasonable baseline of credibility when shortlisting unfamiliar suppliers.
Location: U.K.
Company Type: Trade Association
Website: https://www.castmetalsfederation.com/
Main Products
- Investment Castings (via member foundries)
- Die Castings (via member foundries)
- Sand Castings (via member foundries)
- Commercial Grade Investment Castings (via member foundries)
5. William Lane Foundry
Company Profile
Following a 2017 management buyout, William Lane Foundry's longest-serving employees became directors and co-owners, continuing to grow a business whose heritage traces back to an original Victorian foundry built in 1895. Although the original coke oven was finally decommissioned in 2001, the foundry's core sand casting and pattern-making techniques remain largely unchanged — a traditional approach that still suits buyers who need bespoke, low-volume custom metal castings rather than high-volume standardised parts.
At William Lane, that manufacturing heritage is paired with a modern, customer-focused approach to quoting and production, making the foundry a practical option for engineering buyers who need one-off or short-run custom castings produced and finished by an experienced UK pattern shop.
Location: Staffordshire, England
Company Type: Manufacturer
Website: https://www.williamlanefoundry.uk/
Main Products
- Sand Castings
- Custom & Bespoke Metal Castings
- Ferrous & Non-Ferrous Castings
- Short-Run Custom Casting Production
How to Choose the Right Metal Casting Supplier?
The right supplier depends on what kind of custom metal castings or custom parts you need. NovaCast and William Lane Foundry suit buyers who want a domestic UK foundry for complex or low-volume custom parts; Dean Group International is the strongest choice for buyers who need UK-made precision or aerospace-grade investment castings alongside risk-managed overseas supply for higher volumes; the Cast Metals Federation is worth checking first if you simply need to identify and shortlist accredited UK foundries before requesting quotes; and for buyers who want to reduce unit cost on custom investment castings without losing certification or quality control, Besser Casting offers a proven China-based alternative with direct experience supplying the UK market.
6 reasons to choose Besser for your custom metal castings:
- More than 20 years of experience producing custom metal castings and parts
- Own casting factory and warehouse, able to take on large custom orders
- Professional design team, free to provide design input on custom part specifications
- Compliant with international quality standards and holding multiple certifications
- Competitive pricing on custom metal castings produced at lower cost without compromising quality
- After-sale support with email replies within 24 hours to keep custom orders on schedule
If you need custom metal castings or custom precision parts for your next project, contact Besser Casting to discuss your specifications, material requirements, and target volume — we'll provide a detailed solution and quotation, and look forward to hearing from you.