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Advanced Manufacturing Companies in Plymouth: 213 Active Firms (2026)
Advanced manufacturing companies design and make high-value engineered products using materials, automation and digital production methods around Plymouth.
Buying centres tend to sit with engineering, operations, procurement and compliance teams, rather than a single software or services budget holder. Plymouth-area suppliers in this field usually sell into B2B supply chains, original-equipment manufacturing, industrial process owners and specialist public-sector procurement, with qualification and supplier assurance carrying as much weight as price. Engagements are often project-led: prototype work, component supply, production tooling, automation upgrades or contract manufacturing tied to product performance and traceability. The relevant buyer is therefore less a generic manufacturer and more an organisation with regulated products, repeatable production needs and tolerance for longer sales cycles.
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Plymouth has 213 actively trading advanced manufacturing companies in this list, giving the area a compact industrial cohort rather than a broad metropolitan manufacturing base. Reported employment totals 1,092 people, and every firm in the headcount-reporting group discloses some employment. Scale remains concentrated: 6 companies have reported turnover above £5M, while 44 were incorporated since 2022. That mix points to a market with a sizeable workshop and early-commercial layer, alongside a smaller group of established production businesses.
No single sector licence governs advanced manufacturing. The regulatory burden depends on the product category, end market and technical claims made by the manufacturer. Government industrial policy groups the field around advanced materials, aerospace, agri-tech, automotive, batteries and space, but day-to-day compliance is usually more specific. UKCA and CE marking can apply to machinery, electrical equipment, electromagnetic compatibility, equipment for potentially explosive atmospheres, lifts, measuring instruments and medical devices. Public-sector innovation centres and digital-adoption programmes matter as diffusion channels, not as licensing bodies, so compliance work still sits with the manufacturer and its appointed conformity-assessment route.
Further progress appears tied to customers’ capital-spending cycles, product qualification timelines and the ability of smaller workshops to absorb automation costs. The cohort has a broad early-commercial layer and only a limited scale-up layer, so consolidation by capability or supply-chain position looks more plausible than a clean shift to large local champions. Compliance pressure also tends to reward firms with documented quality systems, repeatable production methods and traceable materials. Smaller engineering shops may remain project-led, particularly where customer demand is intermittent or tied to bespoke component work.
213
Active firms
2026
6
Above £5M
turnover band
44
Since 2022
new incorporations
Key facts
About 2% of the trading cohort reports turnover above £5M (6 of 213 firms) — the rest sits below that revenue band.
20% of the cohort was incorporated since 2022 (44 firms), so a sizeable share is in its first few filing cycles.
The UK Advanced Manufacturing Sector Plan defines six frontier industries: advanced materials, aerospace, agri-tech, automotive, batteries and space.
Product compliance often sets market access, with UKCA and CE marking routes covering machinery, electrical equipment, electromagnetic compatibility, equipment for potentially explosive atmospheres, lifts, measuring instruments and medical devices.
UK advanced manufacturing has over 760,000 jobs and £82 billion in annual GVA, alongside £12.9 billion of business R&D in 2023, equal to 25.7% of the UK total.
ONS reports UK manufacturers’ product sales of £452.2 billion in 2024, down £14.5 billion (3.1%) from £466.7 billion in 2023.
The UK’s share of global manufacturing value added fell from 3.1% in 2000 to 1.9% in 2022, while its global manufacturing export share fell from 3.7% in 2000 to 1.5% in 2020.
Top Plymouth Advanced Manufacturing companies
M Subs
Designs, manufactures and operates manned and unmanned submersibles and underwater vehicles for military, research and commercial use. Provides engineering services including pressure vessel design,…
Serves defence and naval organisations, commercial marine/offshore operators, and scientific research bodies requiring manned or unmanned submersible systems, autonomous vessels, and operational…
Location
Silicon Sensing
Designs and manufactures MEMS-based inertial sensors including gyroscopes, accelerometers and inertial measurement units. Products are used in navigation, stabilisation, pointing and motion sensing…
Serves B2B OEMs and engineering teams in aerospace, defence, robotics, autonomous vehicles, marine/subsea, space, precision agriculture and industrial motion-sensing applications.
Location
MSubs
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, manufactures and operates manned and unmanned submersibles, underwater vehicles and autonomous surface vessels for military, scientific and commercial use. Provides engineering design,…
Serves defence organisations, naval operators, scientific research bodies and commercial marine/offshore customers requiring manned or unmanned submersible systems and related operational support.
Financial Health
StrongStrong · 0% CAGR over 1y
Location
12 ST JOHNS ROAD MANAGEMENT COMPANY LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, manufactures and operates manned and unmanned submersible vehicles, including diver lock‑out and combat submersibles and unmanned underwater and surface vehicles, and provides engineering,…
Serves defence organisations, commercial marine operators and scientific research bodies, including teams procuring or operating manned and unmanned underwater and surface vehicles.
Financial Health
StableStable
Location
Acua Ocean Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and builds uncrewed surface vessels (USVs) used as modular platforms for deploying sensors and systems at sea. Supports ocean data collection, seabed and infrastructure surveys, environmental…
Serves maritime organisations, defence and security agencies, infrastructure operators, survey companies and environmental bodies needing ocean monitoring, seabed surveys, ISR, communications relay…
Financial Health
HealthyHealthy · Hiring · 66% CAGR over 4y
Location
Pyropress Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures industrial switches, transmitters and valves for monitoring pressure, temperature, level, flow and vacuum. Produces flameproof and intrinsically safe instrumentation for…
Sells to industrial B2B customers operating hazardous, safety-critical and weatherproof applications, including oil and gas and carbon capture infrastructure. Serves engineers, OEMs and operators…
Financial Health
StableStable · -66% CAGR over 4y
Location
Oakmount Control Systems Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures bespoke industrial automation machinery and control systems. Provides special purpose machines, collaborative robot integration, PLC and SCADA control panels, and mechanical,…
Sells to businesses needing industrial automation and process control, particularly manufacturers in automotive, food and beverage, pharmaceutical and defence. Targets engineering, production and…
Financial Health
StableStable · -1% CAGR over 4y
Location
Hymec Aerospace (UK) Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides precision engineering and manufacturing services, including CNC milling and turning, sheet metal fabrication, component assembly, surface treatments, and quality inspection. Produces complex…
Serves B2B customers in the aerospace, automotive, motorsport and medical industries, including national and international organisations needing complex engineered components and assembly support.
Financial Health
HealthyHealthy
Location
Hymec Precision Engineering Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsManufactures precision-engineered metal components for aerospace, automotive, motorsport and medical sectors. Provides CNC milling and turning, sheet metal fabrication, product assembly, surface…
Serves procurement and engineering teams at B2B organisations in the aerospace, automotive, motorsport and medical industries, including national and international customers requiring precision…
Financial Health
HealthyHealthy · Hiring · 4% CAGR over 3y
Location
Tooltech Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures precision tooling for aerospace and power generation industries. Provides CAD design, reverse engineering, CNC machining, toolmaking, inspection, low‑volume component…
Serves B2B customers in the aerospace and power generation sectors, particularly engineering and manufacturing teams requiring specialist tooling and precision manufacturing support.
Financial Health
StableStable · -10% CAGR over 4y
Location
Bluestone Technology Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures rugged LCD touchscreen monitors, flat panel displays, panel PCs, consoles and power supply modules. Supplies waterproof, sunlight‑readable and sealed displays for industrial,…
Sells to B2B and public sector buyers needing rugged display systems, including military, marine, aviation, construction, manufacturing, broadcast and university applications, plus search and rescue…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 4y
Location
Skyblueinteriors Ltd
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Equisonics Ltd.
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
P.T.G. Precision Engineers Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides subcontract precision engineering and machining services including CNC milling, CNC turning, wire erosion and conventional machining. Produces prototype and low‑to‑medium batch components,…
Serves B2B customers in the defence, nuclear and high-tech electronics sectors, plus specialist engineering project teams needing subcontract precision engineering support for prototype and…
Financial Health
StableStable · -5% CAGR over 4y
Location
British Filters Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and supplies fine filtration products and systems, including oil, fuel, hydraulic, beverage and pharmaceutical filters. Provides point‑of‑use filter elements and large process precoat…
Serves OEM/OES and industrial buyers in aviation, defence, petrochemical, automotive, food and beverage, and general industrial sectors, including aircraft, military airfield and process…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
ANTEX (ELECTRONICS) LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsManufactures and sells electronic soldering irons, soldering stations and related accessories for electronics assembly and repair. Products include low‑voltage irons, replacement bits, power…
Serves direct buyers of soldering equipment and trade distributors/resellers, including electronics users requiring soldering irons, stations and accessories.
Financial Health
WeakWeak · -8% CAGR over 4y
Location
BLADES LOW CARBON SYSTEMS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
Newnham Engineering (Plymouth) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides precision engineering and CNC machining services, including 5‑axis machining, CNC milling, CNC turning and wire erosion. Manufactures high‑precision metal and plastic components to customer…
Serves B2B customers in demanding industries including defence, oil and gas, agriculture, leisure and construction, particularly organisations needing high-precision components made to specification.
Financial Health
WeakWeak · -4% CAGR over 4y
Location
Protean Engineering Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides engineering design, installation, and project management for defence and industrial communication systems, including radio (HF, VHF, UHF, SatCom), CCTV and video distribution, GPS, internal…
Serves the UK Ministry of Defence and industrial organisations requiring engineering support for communications, CCTV, GPS, radio and internal communication systems.
Financial Health
StableStable · 0% CAGR over 4y
Location
Custom Classic Components Ltd
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
STALMASTER LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StableStable
Location
Leander Consultancy Ltd.
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
High-Tech Services Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsDesigns and fabricates custom vacuum systems and components. Provides vacuum equipment rebuilding, leak detection and vacuum outgassing services, and supplies surplus vacuum equipment and related…
Serves B2B customers that use vacuum equipment and components, including organisations needing custom vacuum systems, leak detection, outgassing, rebuilding or surplus equipment.
Financial Health
WeakWeak · Hiring · 10% CAGR over 2y
Location
Lightwear Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsDesigns and manufactures professional audiovisual signal management equipment, including HDMI and video routers, matrix switchers, and connectivity systems used in corporate meeting rooms, education…
Serves B2B professional AV customers, including corporate offices, educational institutions, live event producers, broadcast environments and organisations upgrading meeting-room or large-scale…
Financial Health
WeakWeak · 4% CAGR over 2y
Location
Rc Motorhomes Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsDesigns and manufactures bespoke coach-built luxury motorhomes, customising vehicles on commercial chassis with high-end interiors, fittings, and onboard technology. Also sells pre-owned motorhomes…
Serves affluent private buyers and motorsport enthusiasts in the UK, including leisure customers wanting large custom vehicles and sports users needing onboard garage space.
Financial Health
StableStable · 0% CAGR over 2y
Location
KNIGHT SCIENTIFIC LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
MBOXES UK LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
ALDERMAN TOOLING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides precision sheet metal fabrication and engineering services, including laser cutting, punching, folding, welding, CNC turning and milling, tube bending, powder coating, and assembly of metal…
Serves B2B manufacturers and product developers in automotive, rail, construction, energy, power generation, IT and communications, from prototype-stage clients to full-scale production buyers.
Financial Health
StableStable · -2% CAGR over 4y
Location
COATING SOLUTIONS (SW) LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Multimarine Composites Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and builds composite multihull boats including Dazcat sailing catamarans, and provides boatyard services such as refits, maintenance, and repairs. Also offers brokerage for buying and selling…
Serves private and specialist marine customers, including catamaran and trimaran owners, prospective multihull buyers, brokerage sellers, and clients commissioning accessible or custom multihull…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
Gecko Innovations Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDesigns and supplies patented TruckLoader skip systems used on construction and excavation sites to load and discharge spoil into tipper trucks, barges and roll‑on roll‑off containers. Equipment is…
Serves construction, demolition, rail and civil engineering contractors managing muck-away on sites such as basement digs, shaft sinking, barge loading, stockpiling and backfilling projects.
Financial Health
StableStable · Hiring · 8% CAGR over 3y
Location
Delta Engineering Plymouth LLP
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 2% CAGR over 4y
Location
TSZCOMPOSITE LTD
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed · 0% CAGR over 1y
Location
Sound Composites Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures custom fibreglass (GRP) and carbon fibre composite components. Provides CAD design, plug and mould making, resin infusion and contract laminating, plus repair and restoration…
Serves businesses and private owners in automotive, motorsport, marine and leisure sectors, including race car teams, boat owners, campervan owners and firms needing small-run or contract…
Financial Health
WeakWeak · Hiring · 32% CAGR over 4y
Location
CMP TECHNOLOGIES LTD
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StableStable
Location
NTL CAD SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 4y
Location
WATERJET PROFILES PLYMOUTH LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
Neon (Holdings) Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsOperates as a holding company for a group that manufactures and sells decorative and commercial LED lighting products, including neon flex, tape lights, string lights, wall washers and other lighting…
Serves B2B customers specifying or procuring decorative and commercial LED lighting for interior and exterior projects, including leisure parks, tunnels, bridges, sports and retail venues.
Financial Health
DistressedDistressed · -3% CAGR over 2y
Location
Multihull Centre Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsOperates a boatyard specialising in catamarans and other multihull yachts. Builds Dazcat catamarans to order and provides servicing, repairs, refits, storage, haul‑out, and brokerage for new and used…
Serves private catamaran and trimaran owners, prospective multihull buyers, and sailing enthusiasts needing specialist yard support, storage, repairs, conversions, brokerage, or custom-built…
Financial Health
HealthyHealthy
Location
ABEL APPLICATIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
IDOOH DESIGNS LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StrongStrong
Location
Thornbury Manufacturing Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 2% CAGR over 2y
Location
CONTINENTAL ENGRAVERS (PRECISION) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
3D Print Workshop Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 1y
Location
Crumb Rubber Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
WeakWeak · 0% CAGR over 2y
Location
Dynaslate Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 0% CAGR over 2y
Location
Multihull Developments Ltd
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed
Location
QC ENGINEERING SOLUTIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Sicor International Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsManufactures and supplies nets, ropes and twines for fishing, marine and shipping, agriculture, sports and leisure, and industrial uses. Product range includes fibre ropes, cordage, sports nets,…
Serves businesses worldwide in agriculture, fishing, marine and shipping, retail, industrial, sports and leisure sectors, including trade buyers needing nets, ropes, twines and related systems.
Financial Health
HealthyHealthy · Hiring · 2% CAGR over 4y
Location
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How Plymouth Advanced Manufacturing companies work and how to sell to them
What they do
Revenue usually comes from engineering projects, component supply, tooling, automation work and contract production, rather than from a simple subscription model. Plymouth-area advanced manufacturing firms tend to price around design effort, materials, machine time, qualification work and repeat unit volume. Early engagements often start with feasibility, prototyping or production-readiness work, then move into framework supply, call-off orders or maintenance support if the part, process or equipment is accepted. Margin depends on utilisation, scrap rates, inspection burden and the customer’s tolerance for bespoke work. Recurring revenue exists, but it is usually tied to repeat manufacturing demand or service contracts, not software-style renewals.
Who they sell to
Most sell to industrial buyers with formal supplier controls: original-equipment manufacturers, tiered suppliers, process operators, defence-adjacent procurement teams, infrastructure owners and technical public-sector buyers. The buying group usually includes engineering, operations, quality, procurement and finance, with compliance or safety specialists joining when regulated products are involved. Sales cycles tend to be longer than for ordinary business services because buyers need drawings, samples, audits, material evidence, site visits and production assurance before purchase orders follow. Routes to market are usually direct sales, approved-supplier lists, framework agreements, tender portals and referrals through engineering networks, rather than self-serve checkout or volume channel sales.
What they buy
Most advanced manufacturing firms tend to spend on systems and services that protect throughput, traceability and bid credibility. Common software categories include production planning, quality management, inventory control, quoting, document control, maintenance scheduling, CRM, finance, cyber security and analytics for shop-floor performance. They also buy specialist recruitment, health and safety advice, product-compliance support, grant-writing help, accounting, insurance, legal services and technical marketing aimed at industrial buyers. On the infrastructure side, useful categories include cloud hosting for engineering files, backup, connectivity, metrology equipment, sensors, machine monitoring, energy management, workshop fit-out, tooling, materials handling and training for operators, inspectors and production managers.
Why and how to sell to them
Buying intent tends to appear when a manufacturer wins a larger customer programme, moves from prototype to repeat production, adds a new production cell, prepares for an audit, changes quality leadership or faces a customer demand for better documentation. Pain points are practical: late quotes, rework, low machine utilisation, supplier delays, skills gaps, material traceability and cash tied up in work-in-progress. Outbound messages usually work better when tied to these triggers than to generic efficiency claims. A credible pitch should show how the offer reduces scrap, shortens qualification, improves audit readiness, speeds quoting or helps a small team manage more complex customer requirements without adding avoidable administration.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
Also in Plymouth
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Frequently asked questions
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