What PEMCO World Air Services does

PEMCO World Air Services, a wholly-owned subsidiary of Air Transport Services Group (NASDAQ: ATSG) headquartered at 4102 N. Westshore Blvd., Tampa, Florida, is the global market leader in Boeing 737 narrow-body passenger-to-freighter (P2F) aircraft conversions. The company holds more than 70 Supplemental Type Certificates approved across FAA, EASA, CAAC, and CAA/JAA regimes and offers over 26 freighter platform variants spanning the B737-300, -400, and -700 families, including full freighters, combi configurations, quick-change variants, and the proprietary FlexCombi™ system that allows operators to switch between three cargo/passenger configurations. PEMCO has modified 350+ aircraft for 60+ customers and accumulated 2 million+ hours of safe operation across 150+ classic conversions still in service, with engineering, certification, fabrication, and kitting all coordinated from Tampa.

Operationally, PEMCO runs 320,000 sq. ft. of hangar space in Tampa and 315,000 sq. ft. in Wilmington, Ohio, supported by a 450+ skilled-technician workforce (growing by 100+ in 2018) and a four-partner conversion network with STAECO and GAMECO in China, COOPESA in Costa Rica, and KF Aerospace in Canada. The revenue model blends one-time P2F conversion services (quote-based per aircraft), recurring MRO and line maintenance at both U.S. facilities, engineering and certification services, and ongoing cargo conversion parts sales, distributed through direct enterprise field sales out of Tampa, a self-serve technical support portal, and the regional partner network. Customers are primarily commercial cargo airlines, with secondary exposure to passenger airlines seeking combi/flexible configurations and private operators requiring bespoke modifications; named flagship customers include Chisholm Enterprises (Texel Air, Bahrain) as launch customer for both the B737-700 Full Freighter and FlexCombi programs, and Frontier Airlines as a U.S. air carrier MRO client.

The company operates in a regulated, capital-intensive niche where competitive position rests on regulatory certifications, engineering IP, hangar capacity, and skilled labor rather than software or data assets. Notable risk signals include a $2,839,900 FAA civil penalty announced February 20, 2026, for alleged maintenance regulation violations (use of expired products on U.S. air carrier aircraft, including five Frontier aircraft) between September 2022 and November 2023.

Name

PEMCO World Air Services

Legal name

Pemco World Air Services, Inc.

Website

https://pemcoair.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

501–1,000 employees

Short description

PEMCO World Air Services is the global market leader in Boeing 737 narrow-body passenger-to-freighter conversions, serving 60+ cargo airlines, passenger carriers, and private operators with a portfolio of 70+ STCs and 26+ freighter platforms, operating from Tampa, Florida and Wilmington, Ohio.

Ownership category

akta.pro rank

Product category

Aviation MRO and Conversions

NAICS

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

SIC

Aircraft & Parts (3720), Aircraft (3721)

akta.pro primary industry

Modifications, STC & Retrofit Integration (IMABALAM)

akta.pro secondary industry

Commercial Airframe MRO (Heavy Checks & Structural) (IMABALAA)

Keywords

• Aircraft passenger-to-freighter conversions
• Aviation MRO services
• Boeing 737 modifications
• Supplemental type certificates
• Aircraft heavy maintenance

Headquarters

HQ city

Tampa

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Aircraft Conversion Services: One-time passenger-to-freighter conversion services for Boeing 737 aircraft. Revenue generated per conversion with multiple platform options (full freighter, FlexCombi, combi, quick change).
2. MRO Services: Maintenance, Repair, and Overhaul services including heavy maintenance, line maintenance, and engineering services at Tampa, Florida and Wilmington, Ohio facilities.
3. Cargo Conversion Parts Sales: Sales of conversion parts and materials to customers for aircraft modifications.
4. Engineering Services: Design, integration, certification activities, fabrication, assembly, kitting, and installation services for conversion programs.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

PEMCO World Air Services specializes in Boeing 737 passenger-to-freighter (P2F) aircraft conversions, offering over 26 freighter platform options including full freighters, combi configurations, quick-change variants, and the proprietary FlexCombi system. The company also delivers heavy and line maintenance, engineering services, and cargo conversion parts sales from facilities in Tampa, Florida and Wilmington, Ohio.

Product overview

PEMCO World Air Services is a division of Airborne Maintenance & Engineering Services (ATSG) specializing in narrow-body passenger-to-freighter (P-to-F) aircraft conversions, primarily for Boeing 737 variants. The company operates as the global market leader in B737 conversions, offering over 26 freighter platform options including full freighters, combi configurations, and the innovative FlexCombi™ system. The product portfolio centers on the B737-700, B737-400, and B737-300 conversion families, each available in multiple configurations. Beyond conversions, PEMCO provides engineering services, heavy maintenance, line maintenance, cargo conversion parts sales, and material sales/manufacturing. The company holds over 100 FAA/EASA/CAAC/CAA/JAA-approved supplemental type certificates and has modified over 350 aircraft with conversion partnerships in China, Costa Rica, and Canada.

Differentiator

Problem solved

Functional benefit

Brands

• FlexCombi: Boeing 737-700 passenger-to-freighter conversion program offering three configurations: 24-passenger cabin plus cargo, 12-passenger cabin plus cargo, or full-freighter mode.

Products and services

• B737-700 Full Freighter (B737-700F) Passenger-to-freighter conversion for Boeing 737-700 Next Generation aircraft featuring nine pallet positions, up to 45,000 pounds of payload, and 3,844 cubic feet of total cargo volume. Targeted at cargo airlines seeking narrow-body freighter additions.
• B737-700 FlexCombi (B737-700FC) First-of-its-kind conversion offering three flexible configurations: 24-passenger cabin plus cargo, 12-passenger cabin plus cargo, or full-freighter mode. Targeted at operators needing flexible passenger/cargo operations.
• B737-400 11-Position High Yield Freighter Third-generation design freighter conversion with 48,000 lb payload capacity and 4,600 cu. ft. main deck volume, with position limits up to 11,000 pounds. Targeted at high-density cargo operators.
• B737-400 9-Position Freighter Alternate high-density freighter configuration with eight full-size 96"x125" positions plus one 88"x125" position. Targeted at cargo operators needing volume-flexible conversions.
• B737-400 Combi (400C) Multi-purpose combi configuration with four ULD forward cargo positions, 25,000 lb payload capacity, and seating for 66 or 72 passengers. Targeted at mixed passenger/cargo operators.
• B737-300 Full Freighter (300F) Full freighter conversion with nine pallet positions (eight full-size plus one smaller container) and 43,100-pound maximum payload. Targeted at cargo airlines seeking older narrow-body freighter conversions.
• B737-300 Quick Change (300QC) Versatile quick change variant with freight capacity for eight full-size containers and 30-minute changeover to haul up to 147 passengers. Targeted at operators needing dual passenger/cargo flexibility.
• Engineering Services Design, integration, and coordination of certification activities; oversees fabrication, assembly, kitting, and installation activities; provides program control from conceptual phase to product delivery and customer support. Targeted at airlines and conversion program operators.
• Heavy Maintenance Comprehensive heavy maintenance services for aircraft at Tampa, Florida and Wilmington, Ohio facilities. Targeted at commercial airlines and cargo operators.
• Line Maintenance Line maintenance services provided at company facilities and partner locations. Targeted at commercial airlines and aircraft operators requiring routine turnaround support.
• Cargo Conversion Parts Sales Sales of cargo conversion parts and materials for Boeing 737 aircraft modifications. Targeted at airlines and MRO operators performing their own conversion or maintenance activities.

Quantifiable outcome

• 2 million+ hours of safe, reliable operation
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered flagship and core.

• Chisholm Enterprises (Texel Air)flagshipChannel Partner/ Reseller/ Distributor · 6 February 2019Launch customer for B737-700 Full Freighter conversion program. International aviation provider based in Middle East with Texel Air subsidiary operating cargo services from Bahrain International Airport. PEMCO to induct aircraft at Tampa headquarters in Q2 2019.
• STAECO (Jinan)coreStrategic or Co-development PartnerPartner operation in Jinan, China for aircraft conversion and maintenance services. Provides regional capacity for PEMCO conversion work in Asia Pacific market.
• GAMECO (Guangzhou)coreStrategic or Co-development PartnerPartner operation in Guangzhou, China for aircraft conversion and maintenance services. Part of PEMCO's Asia Pacific conversion network.
• COOPESA (San Jose, Costa Rica)coreStrategic or Co-development PartnerPartner operation in Costa Rica providing conversion support services for the Americas region.
• KF Aerospace (Kelowna, Canada)coreStrategic or Co-development PartnerPartner operation in Kelowna, Canada for conversion support services in North American market.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Lufthansa Technik: Lufthansa Technik is one of the world's largest MRO providers, offering airframe, engine, and component maintenance plus modifications to global airlines, overlapping with PEMCO's heavy maintenance and engineering service lines.
• AAR Corp: AAR Corp is a major US-headquartered aerospace aftermarket services provider offering MRO, parts, and integrated solutions across commercial and defense aviation, competing with PEMCO's MRO and parts distribution lines as a much larger portfolio player.
• Air France Industries KLM Engineering & Maintenance: AFI KLM E&M is a globally significant airframe and component MRO network, comparable to PEMCO in heavy maintenance and engineering services but operating at much greater scale across a wider portfolio.
• MTU Aero Engines Maintenance: MTU Maintenance is a leading global engine MRO provider serving commercial airlines; adjacent to PEMCO's airframe MRO/conversion business and overlapping where engine-related work accompanies conversion programs on 737 platforms.

Emerging players

• Flightstar Corporation: Flightstar is a US-based MRO and aircraft modification provider with Boeing 737 conversion capabilities, comparable to PEMCO as a direct competitor in narrow-body passenger-to-freighter conversion services for cargo operators.

Direct peers

• Elbe Flugzeugwerke (EFW): EFW, a joint venture between Airbus and ST Engineering, produces A320 family passenger-to-freighter conversions, competing with PEMCO in the broader narrow-body P2F market for airline conversion spend.
• HAECO: Hong Kong Aircraft Engineering Company provides airframe MRO and aircraft modification services across Asia, including conversion programs that overlap with PEMCO's narrow-body conversion offering and Tampa/Asia service geography.
• Israel Aerospace Industries (IAI): IAI's Bedek Aviation Division performs Boeing 737 passenger-to-freighter conversions and holds its own STCs, competing head-to-head with PEMCO in the narrow-body P2F market for cargo operators worldwide.
• Boeing: Boeing operates the 737-800BCF passenger-to-freighter conversion program, the most direct competitor to PEMCO's 737 conversion business, targeting newer-generation 737s for the same cargo operator customer base.

Regional players

• SIA Engineering Company: SIA Engineering Company is a major Asia-Pacific-based MRO provider serving a broad airline customer base; comparable to PEMCO in line and heavy maintenance services, though PEMCO's specialisation in narrow-body P2F STCs is distinct.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/pemcoworldair
• Facebookfacebook.com/PemcoConversions
• LinkedInlinkedin.com/company/pemco-world-air-services

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

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 PEMCO World Air Services