Name

PPI Engineering

Legal name

PPI Engineering Ltd

Website

https://ppi-engineering.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Industrial Rotating Electrical Machines (Motors and Generators)

NAICS

Turbine and Turbine Generator Set Units Manufacturing (333611), Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Electrical Equipment Manufacturing (33531), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Motors & Generators (3621), Electrical Industrial Apparatus (3620), Industrial Instruments For Measurement, Display, And Control (3823), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Rotating Equipment Maintenance (Turbines, Generators, Motors, Pumps, Compressors) (EUAEAGAI)

akta.pro secondary industries

Specialty Power Systems MRO (Generators, Compressors, Pumps, Welders) (TLAKAHAJ), Compliance, Safety & Code-Driven Retrofit Programs (NERC CIP, arc-flash, OSHA) (EUAEALAO), Testing, Commissioning & Electrical Safety (NFPA 70E/Arc Flash) (EDAOABAM)

Keywords

• Rotating electrical machines
• Industrial motor manufacturing
• Generator design services
• Electrical machine repair
• Hazardous area motors

Headquarters

HQ city

Norwich

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. New Equipment Sales: Design and supply of bespoke motors and generators to customer specifications, ranging from 30kW induction machines to 135MVA synchronous generators. Machines are custom designed for obsolescence replacement, upgrade situations, and new applications in power generation, oil & gas, renewables, marine, mining, and industrial sectors.
2. Aftermarket Services and Repairs: Full service and support including on-site diagnostics, repair, rewinding, refurbishment, commissioning, and condition monitoring of rotating electrical machines worldwide. Services delivered by site support team with full offshore certification.
3. Long Term Service Agreements: Structured preventative maintenance programmes with KPIs and performance guarantees for all electrical rotating machines. PPI manages customer asset portfolios allowing customers to focus on their core business.
4. Spares and Reverse Engineering: Supply of spare parts for PPI's own products and for other OEMs. Reverse engineering capability using FARO 3D scanning to replicate obsolete components with full mechanical and electrical interchangeability. Obsolescence management and spare machine supply for discontinued manufacturers.
5. Technical Training Packages: Tailored training programmes for personnel operating electrical plant. Combines theoretical and hands-on practice. Courses cover rotating machines, condition monitoring, vibration analysis, hazardous areas, and more.
6. Repair Facility Services: Dedicated repair facility handling electrical and mechanical repairs to HV motors and generators up to 100MW. Capabilities include stator/rotor rewinds, core repairs, high-speed balancing up to 13.5 tons, and high voltage testing (pulse 25kV, DC 200kV, AC 100kV).

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

PPI Engineering designs, manufactures, and supports bespoke rotating electrical machines — high voltage motors and generators (induction and synchronous, 30kW to 135MVA) — for power generation, oil & gas, renewables, marine, mining, and industrial sectors. The company also delivers engineering design, repair/refurbishment, on-site servicing, condition monitoring, technical training, spares, reverse engineering, and long-term service agreements covering the full equipment lifecycle. Proprietary in-house design software, ATEX/IECEx-certified safety products, and a dedicated repair facility support these offerings.

Product overview

PPI Engineering is a specialist in rotating electrical machines operating across ocean energy, power generation, and renewables sectors. The company's portfolio centres on large motors (30kW to 20MW induction, up to 60MW synchronous) and generators (250kVA to 135MVA synchronous, plus permanent magnet generators), complemented by safety-critical add-on products including the PP1214 Purge and Pressurisation System for hazardous areas and the Rotor Earth Fault Detector for synchronous machines. Services span the complete lifecycle including engineering design, manufacturing, repair facility operations, global on-site services, technical training, long-term service agreements, spares with reverse engineering, and consultancy. The company also provides partial discharge testing and condition monitoring to extend equipment life.

Differentiator

Problem solved

Functional benefit

Products and services

• Induction Motors Bespoke induction motors ranging from 30kW to 20MW with voltages from 380V to 15kV, designed for applications including centrifugal pumps, boiler feed pumps, and high-speed operation up to 5000 rpm. Designed and supplied for power generation, oil & gas, marine, mining, and industrial customers.
• Synchronous Motors Synchronous motors ranging from 500kW to 60MW, available in 2-pole to 36-pole configurations with voltages from 400V to 15kV, including high-speed versions up to 7200 rpm and synchronous condensers for renewable applications. Designed for power generation, oil & gas, mining, and process industry customers.
• Synchronous Generators Synchronous generators from 2-pole (5MVA to 135MVA, 6.6kV to 15kV) and 4-pole (250kVA to 50MVA) configurations, featuring brushless or static excitation for power generation applications. Built on turbogenerator technology acquired from Parsons Peebles Ltd in 2006.
• Induction Generators Induction generators ranging from 30kW to 2MW with voltages from 380V to 3.3kV, suitable for standard industrial, marine, and renewable energy applications.
• Permanent Magnet Generators Custom permanent magnet generators with 2 to 48 poles, ratings as required, using ferrite or rare earth magnets. Designed for applications including tidal energy converters (e.g., Minesto DG100 subsea kite) and wind turbines.
• PP1214 Purge and Pressurisation System Market-leading ATEX and IECEx certified purge and pressurisation safety device for electrical machines in Zone 1/21 and 2/22 hazardous areas. Fully automatic electronically controlled system with automatic leakage compensation up to 4250 ls/min, reducing commissioning time and eliminating manual valve adjustment.
• Rotor Earth Fault Detector Proprietary low-cost, robust device for detecting rotor earth faults between rotor field winding and earth in synchronous machines, using infra-red communication. Transmitter mounted on rotor shaft measures leakage currents; alarm signals sent to frame-mounted receiver. IP66 rated and Zone 1/2 hazardous area compatible.
• Engineering Design Services Comprehensive electromagnetic and mechanical design capabilities for induction and synchronous machines up to 135MW, including thermal analysis, stress analysis, short circuit decrement curve analysis, and finite element analysis using Ansys. Uses PPI's proprietary in-house design software suite.
• Repair Facility Services Full-service repair facility handling electrical and mechanical repairs to HV motors and generators up to 100MW. Capabilities include stator and rotor rewinds, core repairs, high-speed balancing up to 13.5 tons, and high voltage testing (pulse 25kV, DC 200kV, AC 100kV). 20-tonne crane capacity.
• Site Work and On-site Services Global on-site testing, commissioning, repair, rewinds, refurbishment, and condition monitoring services for motors and generators, with engineers available 365 days a year worldwide including offshore locations with full offshore certification.
• Technical Training Packages Tailored training courses covering electrical and mechanical engineering, power generation equipment, condition monitoring, vibration analysis, and hazardous areas operations. Combines theoretical and hands-on practice, delivered on-site or office-based worldwide.
• Long Term Service Agreements Planned and preventative maintenance programmes with condition monitoring, KPIs, and performance guarantees for electrical rotating machines and support equipment. PPI manages customer asset portfolios allowing customers to focus on their core business.
• Spares and Reverse Engineering Supply of spare parts for PPI's own products and other OEMs, using FARO 3D scanning and POLYWORKS metrology software for reverse engineering. Provides obsolescence management and interchangeable replacement machines for obsolete OEM equipment (e.g., GEC, Parsons Peebles, ABB, Siemens).
• Consultancy and Support Services Expert consultancy for electrical rotating machine design, excitation systems, power system stability, condition monitoring, and total cost of ownership analysis for enterprise customers across power generation, oil & gas, and renewables sectors.
• Partial Discharge Testing Off-line and on-line partial discharge testing for high voltage machine windings from 4kV and above using portable QLF kit with Very Low Frequency (VLF) technology at 0.1Hz. Suitable for on-site testing in inhospitable environments.
• DCPMG Software for PMG Design Proprietary in-house software programme for designing Permanent Magnet Generators. Calculates geometric, electric and magnetic parameters from input electrical ratings, optimising performance and space envelope. Used internally for large synchronous machine design and offered as a PPI capability supporting PMG design projects.

Quantifiable outcome

• Refiner synchronous motor efficiency of 98.1% during FAT (exceeding requirement)
• +4 more outcomes

Named customers12 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Laurence ScottcoreChannel Partner/ Reseller/ DistributorPPI Engineering is an approved service partner for Laurence Scott, providing authorised service, repair, and maintenance capabilities for Laurence Scott rotating electrical equipment to their customer base.
• WEGcoreChannel Partner/ Reseller/ DistributorPPI Engineering is an approved service partner for WEG, providing authorised service and maintenance capabilities for WEG rotating electrical equipment.
• Wolong NEPGcoreChannel Partner/ Reseller/ DistributorPPI Engineering is an approved service partner for Wolong NEPG, providing authorised service and maintenance for Wolong rotating electrical equipment.
• API Engineering LtdminorOthersSister company within the API Holdings Group. API Engineering delivers high quality components and equipment in Oil & Gas, Steel Mill, Material Handling, Power Generation and Automotive sectors. The two companies' capabilities are complementary.
• API Capacitors LtdminorOthersSister company within the API Holdings Group and the largest specialist designer and manufacturer of power capacitors in the UK. PPI has access to a high voltage, high current laboratory within API Capacitors' premises in Great Yarmouth for testing.
• API Stone LtdminorOthersSister company within the API Holdings Group. Leading UK supplier of high quality sandstone, limestone and granite.
• API Holdings LtdcoreOthersPPI Engineering is a subsidiary of API Holdings Ltd, the parent company of the API Group. PPI Engineering's headquarters are located at the API Holdings Group Engineering Centre in Norwich.
• MinestocoreStrategic or Co-development PartnerPPI Engineering co-developed the bespoke generator for Minesto's DG100 subsea kite tidal energy converter. The project required joint development of a specialised marine-grade induction generator capable of withstanding continuous underwater pressures and extreme over-speed conditions, involving significant technical collaboration.
• Alcamus ISOQARminorOthersUKAS-accredited certification body that awards PPI Engineering its ISO 9001:2015 certification.
• Hellios (JOSCAR)minorOthersThe Joint Supply Chain Accreditation Register (JOSCAR) operated by Hellios, which certified PPI Engineering as an approved supplier for the Aerospace, Defence, Security & Space sectors.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• ABB: ABB is one of the world's largest manufacturers of industrial motors and generators, with a broad portfolio spanning low and high voltage machines. It is a broad incumbent benchmark for PPI's bespoke induction/synchronous machines business, competing on standard products while PPI focuses on application-specific, drop-in-replacement, and hazardous-area builds.
• Siemens: Siemens Large Drives Applications produces high-voltage motors and generators for power generation, oil & gas, and process industries. Overlaps with PPI in synchronous generators and motors up to 135MVA scale, but operates at vastly greater scale and with standardised offerings rather than bespoke niche work.
• TMEIC (Toshiba Mitsubishi-Electric Industrial Systems): TMEIC designs and manufactures high-voltage motors, generators and drive systems for industrial, power and renewable applications. Competes with PPI in large synchronous motors (e.g., for compressors, mills) but at much larger scale and with more global installed base.
• Sulzer (Electro Mechanical Services): Sulzer provides electromechanical service, repair and overhaul for large rotating equipment including motors, generators and pumps across power, oil & gas and renewables. Broad incumbent peer in PPI's repair-facility and on-site service business, operating globally with larger capacity but less specialisation in bespoke machine design.

Direct peers

• WEG: WEG is a global manufacturer of motors, generators and drives with a strong UK service presence — PPI is in fact an approved service partner for WEG. Direct peer in the HV motor/generator space, though WEG operates a far broader catalogue of standard and customised products.
• Laurence Scott: Laurence Scott is a historic UK manufacturer of large electric motors and generators, particularly for marine and industrial markets. PPI is its approved service partner — directly comparable in terms of product range (HV motors and generators), UK heritage, and obsolescence-replacement focus on legacy installations.
• Wolong NEPG: Wolong NEPG (Nanyang Explosion Protection Group) is a Chinese manufacturer of industrial motors including hazardous-area machines. PPI is an approved service partner for Wolong NEPG, providing authorised service across their installed base — direct peer in HV induction motors, including Ex-rated products.
• Brush HMA (Brush Traction / generators): Brush (formerly Brush Electrical Machines) manufactures large turbo-generators and motors for power generation and industrial markets, including heritage UK generator IP. Direct peer to PPI in large synchronous generators and high-speed rotating machines, with comparable customer verticals and UK heritage.
• Marelli Motori: Marelli Motori is an Italian manufacturer of generators and electric motors for industrial, power generation, marine and renewable applications. Closely comparable niche-specialist competitor to PPI with a similar product portfolio in bespoke synchronous generators and induction motors, including hazardous-area certified products.
• Ingeteam: Ingeteam manufactures generators, motors and power electronics for energy, marine and industrial markets, with particular strength in wind and tidal energy applications. Comparable to PPI in permanent magnet generators and marine renewable co-development projects, including overlap with tidal stream developers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/PPIEngineering
• Facebookfacebook.com/ppiengineering
• LinkedInlinkedin.com/company/5295315

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about PPI Engineering