What Advanced Simulation Technology inc. does

Advanced Simulation Technology inc. (ASTi) is a privately held Virginia-based provider of audio simulation, voice communications, and Radio-over-IP (RoIP) technologies for flight simulation and military training, founded in 1989 and operating with approximately 50 employees. The company designs and sells networked audio systems, simulated air traffic control (ATC) environments, and unified communications platforms used in commercial aviation Level D simulators and U.S./allied military training ranges. Its product portfolio is anchored by Telestra (simulation development toolkit and runtime audio engine) and Voisus (unified communications suite for live-virtual-constructive training), complemented by SERA (AI-enabled simulated ATC with speech recognition and synthetic voice), Solo (PC-based DIS radio environment), CommCheck (phraseology trainer), Comms Logger, Flex Client, Radio Bridge, Simscribe, Earshot, Construct, and Custom Panels. Over 12,000 ASTi systems have been fielded across 1,000+ installation sites in 50 countries, with deployments spanning U.S. Army, Air Force, Navy, and Marine Corps training programs, commercial airlines (JAL, Fiji Airways), simulator manufacturers (CAE, Pilatus), and regulatory bodies (FAA).

ASTi's technology stack combines full-synthesis audio generation, real-time speech recognition exceeding 97% word accuracy for native English and ESL speakers in ATC radio communications, synthetic speech generation with correct aviation phraseology, and standards-compliant interoperability (DIS, HLA, DMO, NASMP, ED-137). Systems meet FAA, EASA, CASA, and CAAC Level D qualifications and carry U.S. Army PEO STRI Authorization to Operate (ATO) under the Risk Management Framework for secure DoD networks. Revenue is generated through one-time system sales (hardware plus software), annual software maintenance and Information Assurance subscription contracts, and professional services including remote tuning for Level D certification. Pricing is quote-based and not publicly disclosed; commercial simulation packages typically bundle server hardware, development workstation, audio distribution, software models, training, and ongoing support under multi-year contracts.

ASTi sells primarily through direct engagement by application engineers (no traditional sales department) to defense organizations, commercial airlines, flight training centers, and simulator manufacturers, supplemented by integration partnerships with simulator OEMs (CAE, Aviate Training Technologies, ProSim) and game engine SDKs (Unity, Unreal Engine 4, CryENGINE, VBS, DCS World). The company's GTM emphasizes thought leadership via ARINC Industry Activities SATCE Working Group leadership (co-chairing the ARINC Specification 439 update), technical publications, and customer demonstration facilities. The company reports steady average revenue growth and substantial cash reserves over its 36+ year history with no layoffs, and currently operates as an unprofitable-growth or sustainably profitable niche specialist in the simulation and training market.

Name

Advanced Simulation Technology inc.

Legal name

Advanced Simulation Technology inc.

Website

https://asti-usa.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

Advanced Simulation Technology inc. (ASTi) provides audio simulation, networked communications, and AI-enabled simulated air traffic control systems for commercial aviation flight simulators and military training programs, serving defense organizations, airlines, and simulator manufacturers across 50 countries.

Ownership category

akta.pro rank

Product category

Flight Simulation Audio & Communications

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Flight Training (611512), Aerospace Product and Parts Manufacturing (33641), Audio and Video Equipment Manufacturing (33431)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Services-Computer Programming Services (7371)

akta.pro primary industry

Modeling, Simulation, Digital Twins & Mission Rehearsal Systems (IMABAOAL)

akta.pro secondary industries

Avionics Software, Certification & Safety-Critical Systems (DO-178/DO-254) (IMABAFAK), Safety, Compliance & Risk Training Simulations (EHS, OSHA, Hazard Response) (EDAFAJAD), Avionics Test, Simulation & Calibration Equipment (IMABAFAN)

Keywords

• Flight simulation audio
• Simulated air traffic control
• Radio-over-IP systems
• Military training communications
• Aviation phraseology training

Headquarters

HQ city

Herndon

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Simulation Audio and Communications Systems: Sale of integrated audio and communications simulation systems for flight simulators and training devices. Systems include hardware (servers, audio processors, interfaces) and software (modeling, runtime). Typically sold as complete turnkey solutions or as modular components.
2. Software Maintenance and Support: Annual software maintenance contracts providing updates, technical support, and Information Assurance (IA) compliance packages. Customers subscribe to ongoing support and software hardening packages.
3. Remote Tuning Services: Remote model tuning services over the Internet to support simulator certification, including Level D qualification. Charged as professional services.
4. Custom Development and Integration: Custom engineering services for integrating ASTi products with specific customer platforms, including scenario development and behavior customization.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Advanced Simulation Technology inc. (ASTi) designs, develops, and sells networked audio simulation systems, voice communications infrastructure, and simulated air traffic control (SATCE) environments for flight simulators and military training devices. Its portfolio combines proprietary hardware (audio processors, servers, panels), software toolkits (Telestra, Voisus), and AI-enabled capabilities (SERA's speech recognition and synthetic speech) that integrate into commercial and military full-flight simulators to provide realistic comms, aural cues, and ATC role-play. Products are sold to defense agencies, commercial airlines, flight training centers, and simulator manufacturers, typically as FAA/EASA Level D certified turnkey systems with optional software maintenance subscriptions and remote tuning services.

Product overview

ASTi offers a comprehensive portfolio of communications, simulated ATC, and sound systems for the training and simulation industry. The core products are Telestra (simulation dev toolkit/runtime for networked audio and aural cues) and Voisus (unified communications suite for live-synthetic training). These integrate with specialized modules including SERA (AI-enabled ATC environment with speech recognition), Solo (virtual comms for PC-based trainers), CommCheck (phraseology training), Comms Logger (communications archiving), Flex Client (software interface), Radio Bridge (live-virtual integration), Simscribe (capture/replay), Earshot (3D spatial audio), Construct (constructive radio), Custom Panels (hardware radio simulators), and Pilot PT (web-based phraseology trainer). Products meet FAA, EASA, and equivalent Level D qualifications and support military standards including DIS, HLA, DMO, and RMF.

Differentiator

Problem solved

Functional benefit

Brands

• Telestra: Simulation dev toolkit, runtime environment, networked audio system for commercial and military flight simulators
• Voisus
• Solo
• SERA
• CommCheck
• Pilot PT
• Flex Client
• Comms Logger

Products and services

• Telestra Networked audio simulation development toolkit and runtime environment providing high-fidelity crew and radio communications, environmental sound, and aural cues for commercial and military flight simulators. Includes automated speaker equalization, sophisticated audio filtering, and one-third octave spectral analysis API for Level D certification. Designed for simulator manufacturers, airlines, and training centers.
• Voisus IP-based unified communications suite for live-synthetic-constructive (LVC) training, providing high-fidelity simulated radios, 3D sound, Radio-over-IP bridging, networked voice capture/replay, and tactical system emulation. Includes modular sub-products (Flex Client, Construct, Radio Bridge, Simscribe, Earshot) and supports DIS, HLA, DMO, and NASMP interoperability for military training, wargaming, and live test ranges.
• Solo Complete virtual communications and DIS radio environment for Windows PCs. Peer-to-peer network implementation providing full comms capabilities including virtual radios, intercoms, and DIS features without requiring a central server, targeting PC-based trainers and serious gaming.
• SERA (Simulated Environment for Realistic ATC) AI-enabled simulated air traffic control environment generating realistic ATC traffic, AI role-player controllers, and other aircraft for pilot training. Features speech recognition (over 97% word accuracy for native English and ESL speakers), synthetic speech generation, scenario generation, automated objective scoring, flight history transcripts, and multi-ownship capability for training multiple pilots simultaneously in a shared ATC environment.
• CommCheck Interactive phraseology training tool for professional aviation communication. Web-based service that teaches proper ATC phraseology using speech recognition and scoring, available via computer labs, laptops, tablets, and phones. Used to train pilots, maintenance crews, and other personnel in correct ground-control communications, and integrates with learning management systems.
• Comms Logger Network-based tactical communications archiving, transcription, and retrieval tool. Records RoIP, network intercom, VoIP, and telephone traffic with built-in transcription, visual timeline, bookmarking, and export capabilities. Deployable on-premise, via cloud, or at the tactical edge, and integrates with Virtual Battlespace for after-action review.
• Flex Client Software client providing streamlined access to PSTN, VoIP, mobile phones, live land-mobile and military radios, network-based simulated radios, intercoms, and conferencing capabilities. Optimized for Windows PCs and tablets with customizable GUI layouts for distributed training exercises.
• Radio Bridge Live-to-virtual radio integration solution connecting live and simulated training environments. Supports radio re-transmission (BLOS communications), radio interoperability (RoIP cross-band), and remote radio control. Compatible with MIL radios including PRC-148, PRC-152, PRC-117, PRC-119, URC-200, and Collins 721S.
• Simscribe Network voice and communications capture and replay tool for live-virtual-constructive after-action review and game-based training. Provides centralized web-based configuration, DIS interoperability, intuitive filtering, time stamping, and event annotation for distributed training exercises.
• Construct Constructive radio environment tool adding voice and radio to game avatars and entities. Enables synthetic automated role-players with speech recognition and intelligent behaviors for interactive tactics training, mission rehearsal, and serious gaming.
• Pilot PT (Pilot Phraseology Trainer) Web-based training service for flight schools and aviation training centers teaching basic aviation English and phraseology. Includes metrics scoring, ICAO Level 4 proficiency evaluation, varied ATC accents, and realistic injected noises; cloud configuration supports concurrent training of large student cohorts.
• Custom Panels (Radio Simulators) Tactical radio simulators providing realistic look, feel, and functionality of live radios in hardware or software GUI versions. Operate over IP networks with embedded ASTi radio models, available as panels for PRC-117, PRC-117G, SINCGARS, SHINCOM II and III, and other military radios.

Quantifiable outcome

• Zero percent failure rate for first training class using SERA for simulated ATC (JAL MPL program)
• +3 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration12 records

AI capability9 records

Feature6 records

Partnerships

Ten partnerships are on record, tiered major, flagship and core.

• Pilatus AircraftmajorOEM/ Whitelabel/ Licensing Partner · 1 December 2025Pilatus contracted ASTi to provide Telestra and SERA for fifteen advanced turboprop aircraft trainers destined for French Air and Space Force, Belgian Air Force, and Royal Netherlands Air and Space Force pilot training.
• ARINC Industry ActivitiesflagshipStrategic or Co-development Partner · 25 November 2025ASTi leads the ARINC Industry Activities SATCE Working Group, undertaking 18-month project to review and update ARINC Specification 439 for simulated ATC environments. Dr. Jeremy Goodman from ASTi co-chairs the Working Group.
• Federal Aviation Administration (FAA)flagshipStrategic or Co-development Partner · 1 June 2024Cooperative Research and Development Agreement (CRADA) with FAA to support industry research as part of National Aviation Research Plan (NARP) 2024-2028. Goal is to develop path for certification for simulated ATC environments.
• Embry-Riddle Aeronautical UniversitymajorStrategic or Co-development Partner · 18 September 2023Joint research on aviation English technology using AI, ASR, TTS, and NLP. Two-year academic study investigated efficacy of technologies for teaching pilots proper English aviation phraseology. Presented findings at ICAEA Conference 2023.
• Japan Airlines (JAL)flagshipStrategic or Co-development PartnerJAL adopted ASTi's SERA product as key component in their Multi-Crew Pilot License (MPL) First Officer Program. This represents the first airline to adopt SATCE solution for daily pilot training use. JAL's program allows students to emerge as fully qualified, type-rated commercial airline First Officers.
• CAEcoreImplementation/ SI/ Consulting PartnerCAE hosts JAL's MPL training program at its Phoenix, AZ facility, integrating SERA into 737NG Level D full-flight simulators. Long-term partnership for pilot training programs.
• Aviate Training TechnologiescoreTechnology or IntegrationSERA Demonstration Center features Airbus A320 simulator made by Aviate Training Technologies. ProSim Training Solutions simulation software integrates directly with SERA.
• ProSim Training SolutionscoreTechnology or IntegrationSimulation and Instructor Operating Station (IOS) system software integrates directly with SERA, giving instructors access to full range of SATCE features. Established joint venture with TXT Group in 2022.
• FlightSafety InternationalmajorStrategic or Co-development PartnerTed Chapman from FlightSafety International co-chairs the SATCE Working Group alongside ASTi's Dr. Jeremy Goodman. Collaborative industry initiative for flight training standards.
• Leading Aeronautical UniversitymajorStrategic or Co-development PartnerUniversity program focused on VR and ATC communications for new pilots powered by SERA. Cloud configuration enables training 40+ students monthly. Rapid-reaction delivery with custom phraseology standards.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• CAE: CAE is the world's largest civil aviation training services provider and manufactures full-flight simulators used by airlines and training centers. CAE both partners with ASTi (e.g., integrating SERA for JAL's MPL program at Phoenix) and develops in-house audio/communications subsystems for its simulators, making it the closest direct competitor and partner overlap in flight simulation training.
• FlightSafety International (L3Harris): FlightSafety International is a major provider of commercial and military flight training with a large installed base of full-flight simulators and training devices. Co-chairs the ARINC SATCE Working Group alongside ASTi, and competes directly in delivering FAA/EASA Level D simulator audio and communications solutions. Now part of L3Harris Technologies.
• Frasca International: Frasca International manufactures flight simulation devices and training equipment, including Level D, Level 5, and FTDs for commercial, military, and general aviation customers. A direct competitor in flight simulator manufacturing with overlap in training audio and communications solutions.
• TRU Simulation + Training (Textron): TRU Simulation + Training, part of Textron Aviation, provides full-flight simulators, training devices, and aviation training services for commercial and military customers. Directly competes with ASTi as a flight simulator manufacturer and training services provider, often sourcing third-party audio and communications subsystems.

Broad incumbents

• L3Harris Technologies: L3Harris is a large defense prime that owns FlightSafety International and broader simulation/training portfolios across military and commercial aviation. It competes broadly in training systems, avionics, and integrated communications solutions, with significantly greater scale than ASTi.
• Collins Aerospace (RTX): Collins Aerospace, part of RTX, is a major avionics and simulation systems provider that supplies cockpit procedure trainers, avionics training systems, and integrated simulation solutions to civil and military customers. Competes broadly in flight simulation avionics and audio subsystems for civil and military training.
• Cubic Defense (Cubic Corporation): Cubic provides military training, mission solutions, and after-action review systems, including air combat training and tactical communications products. Competes in the broader military training and simulation market where ASTi sells Voisus and SERA products, especially for distributed and instrumented training ranges.
• Saab (Training & Simulation): Saab's Training & Simulation division provides military training systems, including flight simulators, ground-based training, and live-virtual-constructive solutions. Competes broadly in defense flight simulation across European and international defense markets, often going head-to-head with ASTi on European defense tenders.
• Rheinmetall (Defence): Rheinmetall's defence division provides live simulation, training systems, and tactical communications equipment for NATO and allied militaries. Competes in the broader live and synthetic military training market that overlaps with ASTi's Voisus and Radio Bridge product lines for European defense customers.

Emerging players

• Bohemia Interactive Simulations (BISim): BISim develops Virtual Battlespace (VBS), a widely used serious-games-based training platform that integrates with ASTi's Voisus via DIS/HLA for radio communications. Competes in adjacent constructive simulation and tactical training use cases, with particular strength in ground and JTAC/close air support training.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/astiusa
• Facebookfacebook.com/asti-275133139212387
• LinkedInlinkedin.com/company/advanced-simulation-technology-inc-

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Advanced Simulation Technology inc.