Tyonek Services Group, Incorporated (TSGI) wholly owns, operates and manages six (6) subsidiaries, three (3) of which are certified Small Disadvantaged Business (SDB) concerns who also participate in the Small Business Administration (SBA) 8(a) Program. All subsidiaries carry ISO 9001:2008 and AS9110:2009 and are ITAR registered.

TSGI subsidiaries provide full spectrum Aviation Maintenance and Logistics, Cyberspace and Cyber Simulator Training, Network Administration, and Federal Contracting and Contract Closeout workforce augmentation support services. TSGI’s considerable corporate experience and high CPARS ratings provide a solid foundation for our client’s mission success and customer satisfaction.

TSGI’s accounting system and rate structure are audited and have been approved by the Defense Contract Audit Agency (DCAA) affording you the best possible pricing. Accordingly, TSGI subsidiaries are eligible to receive federal contracts of any type; i.e., Firm Fixed Price (FFP), Time and Materials (T&M), Cost Reimbursement (CPFF, CPAF, CPIF) and Indefinite Delivery/Indefinite Quantity (IDIQ) arrangements and are tailored to meet your specific project needs at highly competitive prices. Our purchasing system is also reviewed and found acceptable by the Defense Contract Management Agency (DCMA). Our 8(a) subsidiaries include Tyonek Worldwide Services, Inc. (TWS); Tyonek Global Services, LLC (TGS); Tyonek Services Corporation (TSC) and Tyonek Technical Services, LLC (TTS).

Services Capabilities

Aviation Maintenance

Tyonek provides full-spectrum aerospace maintenance and logistics solutions. We support critical military and commercial aviation needs with end-to-end professional services and technical support. We provide DCMA 8210.1 approved Organizational, Intermediate, and Depot Maintenance for US Army, US Navy, US Air Force, and US Forest Service aircraft, subsystems, and ground support/test equipment. 

The dedicated professionals at Tyonek install aircraft modification programs for a broad range of weapons systems, updating aircraft to mission-ready status. Group “A” and “B” kit fabrication, assembly, installation and modifications are carried out swiftly and skillfully in support of our customers.  Our experience includes :

  • U.S. Army H-64 Apache, H-60 Blackhawk, H- 47 Chinook, H-58 Kiowa and Kiowa Warrior, UH-1 Huey, and AH-1 Cobra airframes for assigned aircraft as well as transient aircraft
  • RDT&E Flight Crew
  • RDT&E Instrumentation
  • Army Fixed Wing MWO installs
  • F/A-18 Hornet PMI I & PMI II & Center Barrel Replacement Plus CBR+
  • EA-6B Prowler SLE and Cockpit Modifications
  • P-3 Orion PMI, Zone 5 Wing Repair, Explosive Suppressant Foam (ESF) Program
  • P-3 Orion Avionics Modifications
  • H-60 PMI & ISR (All variants Navy, Army, Coast Guard and Air Force)
  • T-34/T-44/T-6 Trainer aircraft
  • MQ-8 Fire Scout Unmanned Helicopter
  • E6-B TACAMO Avionics Modification Installations
  • USFS C-23 Aircraft support
  • Ground Support Equipment Maintenance
  • Full spectrum Contractor Logistics Support (CLS) and Supply Support Activity(SSA)   

Professional & Technical Services

Professional Services including:

  • Program Management – DoD 5000 Series and PMBOK
  • Federal Pre-award/Post-award Contracting and Contract Closeout Support IAW FAR, DFARS, Agency Supplements
  • Organizational Assessments and Business Process Reengineering
  • Administrative and Supply Management Support
  • Logistics Management


Technical Services including:

  • Automatic Test Equipment Sustainment
  • Cyber and Network Warfare Operations
  • Computer Systems Design and Administration
  • Internet Protocol Networks
  • Command and Control Systems
  • Airborne Network Technologies



What AS9110 Quality Means to Us

AS9110 Registered Aerospace and Defense

  • AS9110 Registered
  • Mature Audit proven Quality Management System
  • Continuous Improvement for Quality and Safety management based on actual measured key performance indicators
  • Commendable employee training management program
  • Management commitment to the health and safety of our employees and their environment through composite risk management