John Mayes Engineers
John Mayes Engineers is a UK-based, family-run manufacturer and distributor established in 1959, supplying industrial forged pipe fittings, bespoke CNC-machined components, and NDT testing services to petrochemical, process, and energy customers globally.
- Company typePrivate
- Founded1959
- HeadquartersThetford, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What John Mayes Engineers does
John Mayes Engineers (trading as Mayes-UK) is a UK-based, family-run manufacturer and distributor of industrial forged pipe fittings, established in 1959 and headquartered in Thetford, Norfolk. The company's product range covers couplings, elbows, tees, crosses, end caps, nipples, unions, and outlets in stainless steel (316/316L, 304/304L, 321), duplex and super duplex (F51, F53, F55), chrome moly (F5, F9, F11, F22), and specialty nickel alloys (Alloy 625, 825, C276), available in 3000 and 6000 pressure classes with SW, NPT, BSPT, and BSPP connections. Operations are anchored by an in-house machine shop equipped with Mazak CNC lathes and mills with 5-axis machining capabilities, an on-site hydrotest rig rated to 15,000 PSI, Niton XRF Positive Material Identification, Fischer Ferritescope FMP30 for duplex/super duplex ferrite control, hardness testing, and a full PCN Level II non-destructive testing service covering MPI, DPI, X-ray, and ultrasonic examination.
Quality assurance rests on ISO 9001 registration, EN10204-3.1 material certification with 3.2 available through a Lloyds Register partnership of more than 20 years, NACE MR0175 sour-service compliance, and ASME B16.11 dimensional conformance. The company serves petrochemical, process, energy, and allied industrial customers, with named end-user references including BP, Shell, Total, ConocoPhillips, Saudi Aramco, Kuwait Oil Company, Chevron, and Exxon. Revenue is generated through unit-priced catalog hardware sales (e.g., £20-£177 per fitting depending on material and size, with lower prices for registered accounts), bespoke CNC machining services for customer drawings and difficult nickel alloys, and ancillary testing/inspection services including third-party inspection coordination and painting to offshore specs.
Commercial activity is conducted via direct B2B sales (three phone lines, [email protected]), an account-gated e-commerce storefront on mayes-uk.com, customer collection from Thetford, and international shipping on buyer-arranged couriers. Supply-side partnerships include a 40+ year relationship with I.M.L. Italy/Farina Group, a newly appointed regional distributorship of Hy-Lok twin ferrule compression fittings (interchangeable with Swagelok and Parker), and a UK forging supply partnership with Abbey Forged Products. Operating geographies span the UK domestic market with selected Europe and Middle East reach via approved-vendor lists and offshore oil and gas end-customer supply chains.
John Mayes Engineers firmographics
Firmographics- Name
- John Mayes Engineers
- Legal name
- John Mayes Engineers
- Website
- https://mayes-uk.com
- Company type
- Private
- Founded year
- 1959
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- John Mayes Engineers is a UK-based, family-run manufacturer and distributor established in 1959, supplying industrial forged pipe fittings, bespoke CNC-machined components, and NDT testing services to petrochemical, process, and energy customers globally.
- Ownership category
- akta.pro rank
John Mayes Engineers industry classification
Industry- Product category
- Industrial Pipe Fittings
- NAICS
- Fabricated Pipe and Pipe Fitting Manufacturing (332996), Forging and Stamping (3321), Precision Turned Product Manufacturing (332721)
- SIC
- Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Screw Machine Products (3451)
- akta.pro primary industry
- Pipe Fittings, Couplings & Connectors (IMADALAD)
- akta.pro secondary industries
- Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers) (IMAHAGAI), Industrial Process & Chemical-Resistant Pipe Systems (CPVC/PVDF/PP) (IMANADAF)
Keywords
Where John Mayes Engineers is headquartered
LocationHeadquarters
- HQ city
- Thetford
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
John Mayes Engineers business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Pipe Fittings Sales: Sale of manufactured and distributed industrial forged pipe fittings including couplings, elbows, tees, caps, nipples, unions, and outlets in various materials (stainless steel, duplex, nickel alloys, chrome moly)
- Bespoke Manufacturing Services: Custom manufacturing of parts to customer drawings or variations of standard products in special steel grades. CNC machining services for difficult nickel alloy grades.
- Testing and Inspection Services: Non-destructive testing services including hydrotest, PMI, ferritescope testing, hardness testing, MPI, DPI, X-ray, and ultrasonic examination.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | 3000 (3M) SW Equal Cross 316/316L Stainless Steel - Starting price |
| Unit Pricing | Pay-as-you-go | 316/L Cross Forging - Price range |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels3 records
John Mayes Engineers product offering
Product offeringCore offering
UK-based manufacturer and supplier of industrial forged pipe fittings, including couplings, plugs, elbows, tees, crosses, end caps, nipples, unions, and outlets in stainless steel (316/316L, 304/304L, 321), duplex, super duplex, nickel alloys (625, 825, C276), and chrome moly materials. The company also distributes Hy-Lok twin ferrule compression fittings and offers bespoke CNC machining, in-house testing (hydrotest, PMI, ferritescope), and non-destructive testing (NDT) services for petrochemical, process, and energy industries.
Product overview
John Mayes Engineers (Mayes-UK) is a UK-based manufacturer and supplier of industrial forged pipe fittings operating since 1959. The core product portfolio consists of forged pipe fittings including couplings, plugs, elbows, tees, crosses, end caps, nipples, unions, and outlets, primarily in 316/316L stainless steel with pressure ratings of 3000 (3M) and 6000 (6M). As a newly appointed regional distributor, the company also offers Hy-Lok twin ferrule compression fittings (interchangeable with Swagelok and Parker products). The company complements its standard product lines with bespoke manufacturing services using CNC machining for custom forgings and specialty alloys, supported by in-house and third-party testing capabilities including NDT, hydrotesting, PMI, and hardness testing.
Differentiator
Problem solved
Functional benefit
Products and services
- Forged Pipe Fittings Industrial forged pipe fittings including full couplings, half couplings, reducing couplings, hex/round/square head plugs, 45° and 90° elbows, equal and reducing tees, equal crosses, end caps, pipe nipples, hex nipples, reducing hex nipples, and various outlets (buttweld, socketweld, threaded). Available in 316/316L, 304/304L, 321 stainless steel, F11/F22 chrome moly, F51/F53/F55 duplex and super duplex, and specialty alloys (Alloy C276, 625, 825). Rated for 3000 (3M) and 6000 (6M) pressure classes with SW, NPT, BSPT, and BSPP connection types. For petrochemical, process, and energy industries.
- Hy-Lok Twin Ferrule Compression Fittings Distributed twin ferrule compression fittings equal and fully interchangeable with Swagelok and Parker products. Includes adapters, connectors, tees, elbows, unions, reducers, bulkhead fittings, gauge connectors, and thermocouple connectors. Also includes high pressure fittings, medium pressure fittings, and sour gas fittings. For process instrumentation and oil & gas applications.
- Bespoke Manufacturing Services Custom forging and CNC machining services for bespoke items to customer drawings or specifications, including variations of standard products for specific applications. Specializes in machining nickel alloys (Alloy 825, 625, C276), carbon steels, and stainless steels. Equipped with Mazak CNC lathes and mills with 5-axis machining capabilities. Over 50 grades of steel in stock.
- Non-Destructive Testing (NDT) Services Complete NDT services including Magnetic Particle Inspection (MPI), Dye Penetrant Inspection (DPI/LPI), X-ray/Radiography, and Ultrasonic testing. All tests performed by PCN Level II operators using Level 3 qualified procedures.
- In-House Testing Services Internal testing capabilities including hydrotesting up to 15,000 PSI using a bespoke hydrotest rig with digitally recorded calibrated sensors, Positive Material Identification (PMI) using Niton XRF portable instrument, Ferriscope testing for duplex and super duplex materials (using Fischer FMP30), and hardness testing using GE UCI and Rebound equipment.
- Third Party Inspection Services Accommodates third party inspections including final inspection, expediting inspection, and EN10204 3.2 material inspection certification. Works with Lloyds Register for complete material traceability from mill or forge to final product. Also offers painting services per offshore paint specifications.
Quantifiable outcome
- Testing capability up to 15,000 PSI hydrostatic pressure testing
- +3 more outcomes
Companies that use John Mayes Engineers
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles2 records
John Mayes Engineers technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
John Mayes Engineers partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- Hy-LokcoreNewly appointed regional distributor of Hy-Lok fittings. Products are equal and fully interchangeable with Swagelok and Parker. ISO approved manufacturer from South Korea supplying Europe since 1995. Supplied to Saudi Aramco, KOC, Chevron, TOTAL since 2004.
- I.M.L. Italy (Farina Group)coreApproved distributor of forged tees, elbows, unions and outlets from Italian drop forger. Over 40 years relationship. I.M.L. sits on most approved vendors lists worldwide.
- Abbey Forged ProductscoreUK forging supplier for bespoke forgings. Operating since 1982. Certifications: ISO 9001, 14001, 17025, 18001. Major approvals from BP, Exxon, and Statoil. Supplies carbon, stainless, duplex steels and nickel alloys.
- Lloyds RegistercoreOver 20 years partnership for EN10204 3.2 material certification. Provides complete specific material traceability from mill or forge through to final product.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
John Mayes Engineers competitors and assessment
Company assessmentDirect peers
- Smith-Cooper International: Manufacturer and master distributor of pipe fittings, nipples and couplings with a deep forged steel and stainless steel catalog. Closely comparable on product range (couplings, elbows, tees, plugs in 3000# and 6000# classes) and B2B distribution model.
- Teekay Couplings: UK-based manufacturer of pipe couplings and fittings for industrial, petrochemical and marine applications. Closely comparable on forged coupling product family and UK customer overlap with industrial and process buyers.
- Melesi (Forgiatura Melesi): Italian drop forger of carbon, stainless, duplex and nickel alloy steel fittings (tees, elbows, couplings, outlets). Direct comparable as a European forged fittings producer in overlapping materials and pressure classes, also in I.M.L./Farina's competitive set.
- Bonner & Brough: UK-based stockist and distributor of pipe fittings, flanges and forged components to petrochemical, oil & gas and process industries. Comparable on UK geography, customer overlap and forged fittings inventory model, though with less in-house machining.
- Bonney Forge Corporation: US-headquartered manufacturer of forged steel pipe fittings, valves and specialty components serving oil & gas, petrochemical and power generation. Directly comparable to John Mayes on product family (forged elbows, tees, couplings, outlets) and end-market focus.
- Ulma Forja: Spanish drop forger of carbon, stainless and alloy steel pipe fittings in similar pressure classes and material grades. Directly comparable on forging process, product family and European customer base.
Regional players
- Eklund & Company: Norwegian distributor and manufacturer of forged pipe fittings focused on the North Sea offshore market. Comparable product mix and customer base (oil & gas operators), with regional overlap in Europe but primary focus on Norwegian/North Sea EPC.
Broad incumbents
- Anvil International: Larger, broader-portfolio manufacturer of pipe fittings, couplings, hangers and piping system components for plumbing, HVAC, fire protection and industrial markets. Overlaps with John Mayes on forged fittings but serves a wider set of verticals.
- Parker Hannifin (Instrumentation Products Division): Large diversified manufacturer of fluid handling components including compression fittings, valves and tubing. Direct product overlap with the Hy-Lok line and partial overlap with John's bespoke CNC machining capability.
- Swagelok Company: Global manufacturer of fluid system components including twin ferrule compression fittings directly interchangeable with Hy-Lok. Relevant as the brand against which John Mayes' newly acquired Hy-Lok distribution competes for instrumentation and process customers.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
John Mayes Engineers social profiles
Digital presenceJohn Mayes Engineers compliance and trust
Trust signalCompliance5 records
John Mayes Engineers financial estimates
Financial estimateRevenue estimate
Valuation estimate
John Mayes Engineers leadership team
Management profileNumber of profiles
Profiles1 record
John Mayes Engineers funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
John Mayes Engineers M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about John Mayes Engineers
What does John Mayes Engineers do?
UK-based manufacturer and supplier of industrial forged pipe fittings, including couplings, plugs, elbows, tees, crosses, end caps, nipples, unions, and outlets in stainless steel (316/316L, 304/304L, 321), duplex, super duplex, nickel alloys (625, 825, C276), and chrome moly materials. The company also distributes Hy-Lok twin ferrule compression fittings and offers bespoke CNC machining, in-house testing (hydrotest, PMI, ferritescope), and non-destructive testing (NDT) services for petrochemical, process, and energy industries.
Is John Mayes Engineers a public or private company?
John Mayes Engineers is a private company. It is classified as family owned and is currently operating.
When was John Mayes Engineers founded?
John Mayes Engineers was founded in 1959. It employs 11 to 50 people.
Where is John Mayes Engineers based?
John Mayes Engineers is headquartered in Thetford, United Kingdom, in the Europe region.
How does John Mayes Engineers make money?
Three revenue lines are on record. Pipe Fittings Sales are the primary driver. The others are bespoke Manufacturing Services and testing and Inspection Services.
Who are John Mayes Engineers's main competitors?
Direct peers on record are Smith-Cooper International, Teekay Couplings, Melesi (Forgiatura Melesi), Bonner & Brough, Bonney Forge Corporation and Ulma Forja. Eklund & Company is listed as a regional player. Broad incumbents are Anvil International, Parker Hannifin (Instrumentation Products Division) and Swagelok Company.
Does John Mayes Engineers have an API?
No public API is recorded for John Mayes Engineers.
What industry is John Mayes Engineers in?
John Mayes Engineers's product category is Industrial Pipe Fittings. Its primary akta.pro industry code is IMADALAD, Pipe Fittings, Couplings & Connectors, with a secondary code of IMAHAGAI, Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers). Its NAICS code is 332996 and its SIC code is 3050.