Liberty Partners, Inc.

Liberty Partners, Inc. is an aerospace engineering, manufacturing and certification firm. It is based in Okmulgee, Oklahoma, at 812 W 9th St. The company says it has worked since 2003. It describes itself as a smaller firm that is known in the aviation modifications industry.

The company does its work under one roof. Its engineering team covers structural and electrical work, analysis, avionics and design for certification. Its factory handles CNC machining, fabrication, composites and finishing, from one-off AOG parts to production runs. It also offers upholstery and interior work. Its certification services cover STC, PMA and ICA work, with international validation through EASA, TCCA and ANAC.

Its main specialty is T-PED certification. The company says it has run this program since 2012 across Part 23, 25, 27 and 29 aircraft and has certified over 3,000 aircraft. In March 2025 it added an FAA approved STC for Part 29 helicopters. It says it has supported over 50 STC programs.

The site lists several approvals. The company holds an FAA PMA under 14 CFR Part 21, Subpart K, section 21.307. It is AS9100D and ISO 9001:2015 certified. It is also ITAR compliant. Its customers include MROs, OEMs, government and defense groups.

News on the site covers a Wi-Fi upgrade path for legacy business aircraft with Apcela, as Gogo Classic ATG service ends on November 8, 2026. The site has a careers page and a request quote button.