Harper Engineering Company
- Company typePrivate
- Founded1968
- HeadquartersRenton, United States
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
Harper Engineering Company firmographics
Firmographics- Name
- Harper Engineering Company
- Legal name
- Harper Engineering Co.
- Website
- https://harperengineering.com
- Company type
- Private
- Founded year
- 1968
- Operating status
- Acquired
- Headcount range
- 101–250 employees
- Ownership category
- akta.pro rank
Harper Engineering Company industry classification
Industry- Product category
- Aerospace Interior Components Manufacturing
- NAICS
- Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413), Aerospace Product and Parts Manufacturing (33641)
- SIC
- Aircraft Parts & Auxiliary Equipment, Nec (3728), Aircraft & Parts (3720)
- akta.pro primary industry
- Aerospace Interior Materials & Components (Cabin) (IMABANAI)
- akta.pro secondary industry
- Interior Structural Components (Floor Beams, Seat Tracks, Frames) (IMABAEAJ)
Keywords
Where Harper Engineering Company is headquartered
LocationHeadquarters
- HQ city
- Renton
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Harper Engineering Company business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure
Revenue model
- Aircraft Interior Components and Mechanisms: Design, manufacturing, and certification of mechanically engineered devices for aircraft interiors including latching systems, securing mechanisms, hinges, seat track fittings, oxygen bottle brackets, and other interior hardware sold to aerospace OEMs and airlines.
- Composite Manufacturing Services: Production of lightweight composite parts including CFRTP stowage bin covers for Boeing 787, 747-8, and 777X aircraft. Manufacturing services include thermoplastic composites, precision machining, and hybrid overmolding.
- Engineering and Certification Services: In-house engineering design, certification testing, and quality assurance services supporting the product manufacturing, with comprehensive testing capabilities and resources for aerospace component certification.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom aerospace components manufactured to customer specifications |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
Harper Engineering Company product offering
Product offeringCore offering
Harper Engineering Company designs, tests, certifies, and manufactures mechanically engineered devices and composite components for aircraft interiors, including latching systems (bin, ceiling, door), seat track fittings, oxygen bottle brackets, hinge systems, panel fastening systems, and continuous fiber reinforced thermoplastic (CFRTP) composite parts. These FAA-certified products are sold to commercial aerospace OEMs (Boeing, Airbus, Embraer), Tier 1 interiors suppliers (Collins Aerospace, Adient, Safran), and commercial airlines for both line-fit and aftermarket applications.
Product overview
Harper Engineering Company is a manufacturer of mechanically engineered aircraft interior devices, primarily latching systems and fittings for commercial aviation. The company operates as a single unified product portfolio focused on aircraft interior components including bin latching systems, ceiling latching systems, door latching systems, seat track fittings, bottle bracket systems, hinge systems, panel fastening systems, and continuous fiber reinforced thermoplastics (CFRTP). These products are designed, tested, certified, and manufactured in-house using capabilities including mechanical design, precision machining, composites manufacturing, certification testing, and complex assembly. The company was acquired by Loar Holdings Inc. in January 2026 and continues operating under the Harper name.
Differentiator
Problem solved
Functional benefit
Products and services
- Panel Fastening System A mechanical fastening system for aerospace panel assembly featuring inserts custom-made for any panel thickness, curvature, and mating angle. Includes fly-away tooling capability that eliminates the need for assembly fixtures, enabling adhesive-free panel assembly and reducing assembly cost and time. Targets aerospace OEMs and Tier 1 interiors suppliers.
- Bin Latching Systems Stowage bin latching systems backed by over 50 years of design and manufacturing experience. Customized to specific customer requirements with quality and reliability validated for in-service commercial aircraft platforms.
- Ceiling Latching Systems Latching systems engineered for aircraft ceiling panels, addressing challenging requirements including deflection, anti-rattle, decompression, and limited access conditions in commercial aircraft cabins.
- Door Latching Systems Door latching systems for galleys, lavatories, crew rests, and interior monuments. Includes high-security products for flight deck doors with ballistic protection.
- Seat Track Fittings Seat track fittings developed for the Boeing 787 Dreamliner using inconel fasteners and forged titanium body, with enhanced design offering load capability exceeding 14,000 pounds for commercial aircraft seating systems.
- Bottle Bracket Systems Oxygen bottle bracket systems for aircraft, shipped in volumes of thousands per month worldwide, with capability to produce brackets for non-standard bottle sizes.
- Hinge Systems Range of hinges from basic spring-loaded piano-style designs to intricate 6-bar mechanisms, including dampened constant force shelf bin door hinges for commercial aircraft interior applications.
- Molded-in Locking Inserts Low-profile molded-in locking blind inserts designed for limited-space situations in plastic materials, used as part of aerospace panel fastening and assembly solutions.
- Continuous Fiber Reinforced Thermoplastics (CFRTP) Lightweight, high-performance press-formed CFRTP stowage bin covers and composite assemblies for Boeing 787, 747-8, and 777X aircraft, manufactured at the Kent, WA composites facility with proprietary bonding technology.
- Flight Deck Secondary Barrier Patent-pending flight deck secondary barrier system that enhances cockpit security, featuring a seamless design with maximum aisle protrusion under 2.5 inches, user-friendly one-hand operation, security locks, and customizable curtain design.
- Universal Interior Products Diverse range of aircraft interior hardware including decorative washers, spring-loaded door snubbers, lock and key combinations, and hat clips, with combined sales quantities in the millions for commercial aerospace customers.
Quantifiable outcome
- 99.9% on-time delivery rate
- +6 more outcomes
Companies that use Harper Engineering Company
Customer profileNamed customers14 records
Segments3 records
Ideal customer profiles3 records
Harper Engineering Company technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Harper Engineering Company partnerships and signals
Strategic signalScale indicators7 records
Recent moves6 records
Expansion highlights6 records
Harper Engineering Company competitors and assessment
Company assessmentDirect peers
- Sekisui Aerospace: Manufactures composite interior parts and acoustic/thermal insulation for commercial aircraft. Direct comparable in CFRTP/composite interior components serving Boeing and other OEMs.
- NMG Aerospace: Manufacturer of engineered mechanical components and assemblies for aircraft interior and air management systems. Direct comparable as a niche supplier of mechanical interior hardware for commercial aerospace OEMs.
- M.C. Gill Corporation: Manufacturer of composite panels and laminates for aircraft interiors including cabin and cargo applications. Direct peer in composite interior parts with overlapping commercial aerospace OEM customer base.
Others
- Loar Holdings (other portfolio companies): NYSE-listed holding company specializing in niche aerospace component businesses; now Harper's parent. Peer relationship exists through other Loar subsidiaries (e.g., Genesis, J&C Aero) that supply similar niche aerospace mechanisms.
Broad incumbents
- TransDigm Group: Acquisitive aerospace component manufacturer with proprietary, sole-source specialty parts business model. Comparable for its specialty-mechanism aerospace focus and Loar-style holding company strategy.
- Triumph Group: Diversified aerospace supplier of structures, mechanical systems, and interior components. Comparable as a broad incumbent serving the same commercial OEM customer base with overlapping mechanical and structural product lines.
- HEICO Corporation: Aerospace and electronics company supplying FAA-approved parts, components, and aftermarket services. Comparable as a broad aerospace parts incumbent with strong aftermarket exposure overlapping Harper's airline-customer footprint.
- Senior plc: UK-based supplier of high-precision engineered components and fluid conveyance systems for aerospace. Comparable as a precision aerospace components manufacturer with similar mechanical-engineering capabilities.
- GKN Aerospace: Tier-1 supplier of aerostructures, engine components, and composite materials. Comparable as a broad aerospace incumbent with composites capability serving Boeing, Airbus, and other OEMs Harper also supplies.
- Diehl Aviation: Tier-1 supplier of aircraft cabin interiors and systems, including cabin management, lighting, and lavatory/galley monuments. Comparable as a broad cabin interiors incumbent that competes with Harper-supplied Tier-1s and shares the same commercial OEM customer base.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Harper Engineering Company social profiles
Digital presenceHarper Engineering Company compliance and trust
Trust signalCompliance2 records
Harper Engineering Company financial estimates
Financial estimateRevenue estimate
Valuation estimate
Harper Engineering Company leadership team
Management profileNumber of profiles
Profiles3 records
Harper Engineering Company funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Harper Engineering Company 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 Harper Engineering Company
What does Harper Engineering Company do?
Harper Engineering Company designs, tests, certifies, and manufactures mechanically engineered devices and composite components for aircraft interiors, including latching systems (bin, ceiling, door), seat track fittings, oxygen bottle brackets, hinge systems, panel fastening systems, and continuous fiber reinforced thermoplastic (CFRTP) composite parts. These FAA-certified products are sold to commercial aerospace OEMs (Boeing, Airbus, Embraer), Tier 1 interiors suppliers (Collins Aerospace, Adient, Safran), and commercial airlines for both line-fit and aftermarket applications.
Is Harper Engineering Company a public or private company?
Harper Engineering Company is a private company. It is classified as corporate owned and is currently acquired.
When was Harper Engineering Company founded?
Harper Engineering Company was founded in 1968. It employs 101 to 250 people.
Where is Harper Engineering Company based?
Harper Engineering Company is headquartered in Renton, United States, in the North America region.
How does Harper Engineering Company make money?
Three revenue lines are on record. Aircraft Interior Components and Mechanisms are the primary driver. The others are composite Manufacturing Services and engineering and Certification Services.
Who are Harper Engineering Company's main competitors?
Direct peers on record are Sekisui Aerospace, NMG Aerospace and M.C. Gill Corporation. Loar Holdings (other portfolio companies) is listed as an others. Broad incumbents are TransDigm Group, Triumph Group, HEICO Corporation, Senior plc, GKN Aerospace and Diehl Aviation.
Does Harper Engineering Company have an API?
No public API is recorded for Harper Engineering Company.
What industry is Harper Engineering Company in?
Harper Engineering Company's product category is Aerospace Interior Components Manufacturing. Its primary akta.pro industry code is IMABANAI, Aerospace Interior Materials & Components (Cabin), with a secondary code of IMABAEAJ, Interior Structural Components (Floor Beams, Seat Tracks, Frames). Its NAICS code is 336413 and its SIC code is 3728.