What timberline aerospace does

Timberline Aerospace, LLC is a Sandpoint, Idaho-based FAA-certified aerospace manufacturer and wholly-owned subsidiary of Timberline Helicopters, Inc. Founded in 2018, the company develops Supplemental Type Certificates (STCs) and manufactures aircraft upgrade kits with a primary focus on UH-60 Black Hawk platforms, alongside MD500, Bell 205/206/407/212/412, and Airbus AS-350 utility helicopters. Its certified product portfolio includes the Purge Fuel Collector System (SR02597SE, capturing GE T-700/701 purge fuel for US Forest Service compliance), the Locking Fuel Cap Cover (SR02001SE), the 34.5 Beam Modification (SR02650SE, addressing stress concentration cracks across 11 UH-60 model variants as a lower-cost alternative to full 308 frame replacement), a Flight Control Rigging Pin Kit, Rotor Blade and Hub Covers, and a pending STC for an External Fixed Provisions Kit. Underlying capabilities combine FAA Part 145 Repair Station services (granted 2019), FAA Parts Manufacturing Approval (received 2019), CNC machining, composite construction, and complex structural assemblies, with in-house certification personnel working alongside Designated Engineering Representatives and the Aircraft Certification Office.

Name

timberline aerospace

Legal name

Timberline Aerospace, LLC

Website

https://timberlineaerospace.com

Company type

Private

Founded year

2018

Operating status

Operating

Short description

Timberline Aerospace develops FAA Supplemental Type Certificates and manufactures upgrade kits — primarily for UH-60 Black Hawk and other utility helicopters — serving government agencies and commercial fleet operators with MRO and STC licensing.

Ownership category

akta.pro rank

Product category

Aerospace Components and Aircraft Modification Services

NAICS

Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413)

SIC

Aircraft Parts & Auxiliary Equipment, Nec (3728)

akta.pro primary industry

Modifications, STC & Retrofit Integration (IMABALAM)

akta.pro secondary industries

Modification, Retrofit & Engineering (STC, Avionics Upgrades, Conversions) (TLAKAJAI), Commercial Airframe MRO (Heavy Checks & Structural) (IMABALAA)

Keywords

• Helicopter STC certification
• Aircraft modification kits
• FAA Parts Manufacturing Approval
• Utility helicopter MRO
• UH-60 Black Hawk upgrades

Headquarters

HQ city

Sandpoint

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. STC Modification Kits: Sale of FAA-approved Supplemental Type Certificate kits for helicopter modifications including the Purge Fuel Collector System, 34.5 Beam Modification, and Locking Fuel Cap Cover. One-time license revenue per installation.
2. MRO Services: Maintenance, Repair, and Overhaul services as a certified FAA Repair Station under 14 CFR Part 145 for UH-60A/A+/L Black Hawk, Kaman K-1200 K-MAX, MD500/530 Series, Bell 206 Series, and Cessna 100 & 200 Series aircraft.
3. Aircraft Certification Services: In-house design and engineering capabilities with certification personnel working with Designated Engineering Representatives and Aircraft Certification Office to move projects through STC process.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Timberline Aerospace, LLC certifies and manufactures FAA-approved aircraft upgrades and modifications for utility helicopters, including the UH-60 Black Hawk, MD500, Bell series (205/206/407/212/412), and Airbus AS-350 platforms. The company develops Supplemental Type Certificates (STCs), manufactures modification kits in-house under its FAA Parts Manufacturing Approval, and operates as a Part 145 FAA Repair Station providing MRO services.

Product overview

Timberline Aerospace, LLC, based in Sandpoint Idaho, is a wholly owned subsidiary of Timberline Helicopters, Inc. founded in 2018. The company certifies and manufactures aircraft upgrades and modifications with a focus on utility helicopters including UH-60, MD500, Bell 205, 206, 407, 212, 412, and Airbus AS-350 helicopters. The product portfolio includes multiple STC-approved modification kits for the UH-60 Black Hawk platform: the UH-60A Purge Fuel Collector System (SR02597SE), Locking Fuel Cap Cover (SR02001SE), UH-60A 34.5 Beam Modification (SR02650SE), Flight Control Rigging Pin Kit, UH-60 Rotor Blade and Hub Covers Kit, and a pending STC for the UH-60A External Fixed Provisions Kit. The company also provides MRO services and holds FAA Parts Manufacturing Approval for in-house STC kit production. Manufacturing capabilities include CNC machining, composite construction, and complex structural assemblies. Recent partnership with MicroVision and Lake Fusion Technologies aims to accelerate deployment of the IRIS sensor package for aerospace applications.

Differentiator

Problem solved

Functional benefit

Named customers2 records

Segments3 records

Ideal customer profiles2 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• MicroVisioncoreTechnology or Integration · 16 June 2026MicroVision has been selected by Lake Fusion Technologies and Timberline Aerospace to support deployment of its IRIS sensor package. The partnership aims to accelerate integration and operational readiness of the sensor technology for aerospace applications. MicroVision's technology enhances capabilities of the joint IRIS initiative between the two aerospace firms.
• Lake Fusion TechnologiescoreStrategic or Co-development PartnerLake Fusion Technologies and Timberline Aerospace have onboarded MicroVision to accelerate deployment of the IRIS sensor package. The collaboration between these two aerospace firms advances sensor integration for their respective applications through joint initiative.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Heli-One (CHC Helicopter): One of the largest independent helicopter MRO providers globally, with extensive STC development, component overhaul, and aircraft modification capabilities across Sikorsky, Bell, Airbus and Leonardo platforms — directly comparable to Timberline's STC + MRO + aircraft modification model.
• Precision Aviation Group (PAG): Provider of helicopter MRO, component repair, and STC development for rotorcraft operators including Bell, Sikorsky, Airbus and MD platforms. Closely comparable as a multi-platform helicopter STC/MRO specialist serving utility and commercial operators.
• Eagle Copters: Helicopter operator and modifier focused on Bell407/212/412 and Airbus platforms with in-house STC development, MRO, and aircraft completions — directly comparable niche competitor in utility helicopter modifications.
• Vector Aerospace (now part of StandardAero): Legacy helicopter MRO and modification specialist with deep STC portfolio on Sikorsky, Bell and Airbus platforms, now integrated into StandardAero — comparable scope of helicopter airframe and component modifications.
• Helicopter Specialties Inc. Specialized helicopter MRO and STC house, particularly for Bell platforms with utility mission modifications — comparable niche STC/MRO competitor serving similar utility helicopter operator base.

Broad incumbents

• StandardAero: Global aviation MRO provider with substantial helicopter capabilities (including legacy Vector Aerospace operations), offering component MRO, engine overhaul, and airframe modifications across a much broader portfolio than Timberline.
• Sikorsky (Lockheed Martin): OEM of the UH-60 Black Hawk platform that Timberline's STC portfolio targets. Comparable as the type certificate holder whose aircraft Timberline modifies, and a broad incumbent with significant aftermarket and modification programs.
• Bell (Textron): OEM of Bell 205/206/212/412 series helicopters that Timberline services and modifies — broad incumbent with their own STC catalog and authorized completion centers competing for the same operator wallet.
• MD Helicopters: OEM of the MD500/530 platform supported by Timberline. Comparable as the type certificate holder with active STC and modification programs overlapping Timberline's MD-series MRO and modification business.

Emerging players

• Genesys Aerosystems (Moog): Avionics STC developer for helicopters and fixed-wing, including glass cockpit and autopilot retrofits on Bell, Sikorsky, Airbus platforms. Comparable as a niche STC specialist targeting the same utility helicopter retrofit market, with focus on avionics rather than mechanical modifications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 timberline aerospace