Proptech

What Proptech does

Proptech Aero Ltd is a UK-based, privately held aircraft propeller maintenance, repair and overhaul (MRO) specialist operating from Solent Airport in Lee-on-the-Solent. Founded in the propeller maintenance business during the 1960s (legal entity Proptech Aero Ltd, Company No. 06738425, England and Wales), the company holds factory approvals from five major propeller OEMs — Hartzell, McCauley, MT-Propeller, Sensenich and Dowty — and is regulated under EASA Part 145, FAA, UK CAA, TCCA and ISO 9001:2015, with additional national approvals in Nepal, Malaysia and Indonesia.

The company's core offering spans four interlocking product lines: (1) OEM-approved repair and overhaul for the propeller brands above plus in-house capability on 14RF, 14SF, 568F, 247F and ATP Hamilton props, (2) overhaul exchange and leasing of ATR and C295 propellers to compress customer downtime, (3) new propellers, spare blades, hubs, STC kits and piece parts, and (4) dynamic balancing and field service delivered on-site in the UK and internationally. A governor and FADEC bench was being commissioned in mid-2025 as a new in-house testing capability.

Commercial motion is direct B2B, quote-based pricing, targeting general aviation owners, regional airlines (e.g., Air Algerie, Sky Express SA), defense and special-mission operators (e.g., Special Mission Aircraft Support Services) and water-bomber fleets (CL-215T/CL-415). Revenue is generated through professional MRO services, hardware sales of parts and spares, and exchange/lease programs; pricing is not publicly disclosed. Headcount is small (firmographic range 1–10) but actively expanding, with seven new composite technicians added in 2024 and open requisitions for MRO Propeller Inspectors and an Aviation MRO Production Manager.

Name

Proptech

Legal name

Proptech Aero Ltd

Website

https://proptech.aero

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

1–10 employees

Short description

Proptech Aero Ltd is a UK-based, OEM-approved aircraft propeller MRO specialist serving general aviation, regional airlines and military operators worldwide, offering repair, overhaul, exchange/lease, spares and field service across Hartzell, McCauley, MT, Sensenich and Dowty propeller lines.

Ownership category

akta.pro rank

Product category

Aviation Propeller MRO

NAICS

Aerospace Product and Parts Manufacturing (33641), Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413)

SIC

Aircraft Parts & Auxiliary Equipment, Nec (3728), Aircraft & Parts (3720)

akta.pro primary industry

Component MRO (LRU/Rotables, Hydraulics, Pneumatics) (IMABALAD)

akta.pro secondary industries

Modification, Retrofit & Engineering (STC, Avionics Upgrades, Conversions) (TLAKAJAI), Component MRO (Avionics, Hydraulics, Pneumatics, Electrical) (TLAKAJAC)

Keywords

• Aircraft propeller MRO
• Propeller overhaul services
• Aviation maintenance repair
• Propeller exchange leasing
• Dynamic propeller balancing

Headquarters

HQ city

Lee-on-the-solent

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. MRO Services: Maintenance, repair, and overhaul services for aircraft propellers including OEM approved repairs, overhauls, and field service
2. Parts and Spares: Sale of new propellers, spare parts, STC kits, tooling and piece parts
3. Exchange and Lease Programs: Exchange and lease solutions for ATRs, C295s and other popular aircraft types to reduce customer downtime and inventory requirements

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Proptech Aero is an aircraft propeller maintenance, repair, and overhaul (MRO) specialist headquartered in Lee-on-the-Solent, UK. The company provides OEM-approved propeller repairs and overhauls, new propeller and spare parts sales, exchange/lease programs for ATR and other turboprop aircraft, and onsite dynamic balancing and field repair services for general aviation, military, and regional airline customers worldwide.

Product overview

Proptech Aero operates as a unified propeller maintenance, repair, and overhaul (MRO) service provider rather than a software platform. Their core offering is a comprehensive suite of aircraft propeller services built around four interconnected product lines: Overhaul Exchange & Leasing (providing exchange/lease solutions for ATR and other aircraft types to reduce customer downtime), OEM Approved Repair & Overhaul (factory-approved maintenance for Hartzell, McCauley, MT, Sensenich, and other major propeller brands), New Propellers & Spares (supplying complete props, STC kits, and individual components), and Dynamic Balance & Field Service (onsite repairs and balancing). The company also recently added Governor and FADEC bench capability to expand their in-house testing services. They serve customers from general aviation (GA) to military and regional aircraft operators, offering everything from individual repair services to full hourly maintenance contracts.

Differentiator

Problem solved

Functional benefit

Products and services

• Overhaul Exchange & Leasing Provides exchange and lease solutions for ATR propellers and other popular aircraft types including C295s, helping customers reduce downtime and inventory requirements.
• OEM Approved Repair & Overhaul Factory-approved repair and overhaul services for Hartzell, McCauley, MT, and Sensenich propellers, plus in-house capability for 14RF, 14SF, 568F, 247F and ATP Hamilton props and Dowty metal bladed propellers.
• New Propellers, STC Kits & Spares Sales of complete replacement propellers, spare blades, hubs, piece parts, and STC (Supplemental Type Certificate) kits.
• Dynamic Balance & Field Service Specialized onsite field repairs and dynamic balance services delivered in the UK and around the world to improve propeller performance and reduce vibration.
• Governor and FADEC Bench Testing In-house testing capability for propeller governors and Full Authority Digital Engine Control (FADEC) systems, currently being commissioned to expand service offerings.

Quantifiable outcome

• Reduced aircraft downtime through exchange and lease programs
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Hartzell Propeller LLCcoreTechnology or IntegrationHartzell OEM approved repair station for Hartzell propellers. Proptech holds current Hartzell approval for repair and overhaul services including cold roll and Hartzell Option 2 processes.
• McCauley PropellerscoreTechnology or IntegrationMcCauley OEM approved MRO for repair and overhaul of McCauley propellers used in various general aviation and regional aircraft applications.
• MT-Propeller (MT Propeller Entwicklungs GmbH)coreTechnology or IntegrationMT approved for composite blade repair including nickel erosion protection. Proptech supports MT propellers including the 14SF series used on water bombers.
• SensenichcoreTechnology or IntegrationSensenich OEM approved repair station for propeller repair and overhaul services.
• Dowty PropellerscoreTechnology or IntegrationDowty approved repair and overhaul for Dowty metal bladed propellers including C212 aircraft applications.
• ATR (Avions de Transport Régional)coreTechnology or IntegrationProptech provides exchange and lease solutions for ATR aircraft propellers as part of customer support programs to reduce downtime and inventory requirements.
• Air AlgerieminorOthersCommercial airline customer with ongoing MRO services relationship.
• Sky Express SAminorOthersCommercial airline customer requiring AOG support and ongoing propeller maintenance services.
• Special Mission Aircraft Support Services, IncminorOthersDefense contractor customer for military special mission aircraft propeller support programs.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Sensenich Propeller: US-based propeller OEM operating its own factory service centre for repair and overhaul; competes head-to-head with Proptech for Sensenich-branded propeller MRO.
• Hartzell Propeller: Major aircraft propeller OEM with its own global network of authorised service centres performing the same propeller MRO and exchange work that Proptech is approved for under their OEM agreement.
• MT-Propeller: German propeller manufacturer with composite-blade expertise and an OEM service network; comparable propeller brand whose 14SF props Proptech specifically overhauls, and a direct competitor for MT-propeller MRO work.
• Dowty Propellers (Collins Aerospace): OEM of metal-bladed propellers (including C212 applications serviced by Proptech) under Collins Aerospace; runs its own propeller MRO operations, representing both a partner and a competitive incumbent.
• Aero Propeller & Accessories: US-based propeller MRO specialist offering overhaul, exchange and field service for Hartzell, McCauley and other brands — directly comparable to Proptech in propeller-only service scope and customer type.
• K-Tek Aerospace: Specialist propeller and component MRO provider serving regional and general aviation operators, comparable in offering propeller overhauls, dynamic balancing and exchange programmes.

Broad incumbents

• StandardAero: Large, multi-platform aviation MRO incumbent offering propeller and engine services across business, regional and military aviation; competes for the same propeller and turboprop MRO wallet share as Proptech from a much broader portfolio.
• Vector Aerospace: Global helicopter and fixed-wing MRO provider (part of StandardAero) that also services regional turboprops; comparable as a broad aviation aftermarket incumbent competing for component MRO and exchange-pool work.

Regional players

• Mid-Canada Mod Center: Canadian propeller and component MRO shop with TCCA approval serving North American regional and GA operators; comparable service offering to Proptech but operating primarily in a different geography.
• AJ Walter Aviation: UK-based aviation parts and MRO distributor servicing regional airlines and GA operators from a UK base; comparable regional addressable market and overlap with Proptech on propeller parts supply and exchange programmes.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/proptechaeroltd

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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 Proptech