What Trans-Cal Industries does

Trans-Cal Industries, Inc. is a privately held avionics hardware manufacturer founded in 1971 and headquartered in Van Nuys, California, adjacent to Van Nuys Airport. The company designs, engineers, and manufactures solid-state altitude encoders and digitizers (primarily the SSD120 Nano series), serializers and interface adapters, and a suite of avionics test equipment, serving aircraft operators, maintenance facilities, and avionics installation shops that require pressure altitude data for Mode C transponders, ADS-B Out compliance, GPS, and autopilot integration. Products are FAA TSO-C88a and EASA ETSO-C88a approved, support altitudes from -1000 to +126,000 feet, and convert pressure altitude to ICAO parallel code plus RS232/RS485 serial data — a dual-protocol simultaneous-output capability the company states is unique in the industry. Core differentiation rests on ruggedized in-house design and manufacturing, a 0.3% warranty failure rate, a 42-month electronics warranty, and cross-compatibility with legacy installations via dedicated adapter plates for ACK, Ameri-King, Sandia, Shadin, and Narco trays. The company also extends its ruggedized electronics expertise to military and industrial safety applications through the MMS-80 Crane Safety System.

Trans-Cal operates a sales-led go-to-market model, selling direct via phone and email, and indirectly through six authorized stocking distributors (Adams Aviation, Aircraft Spruce, Dallas Avionics, EPMO, EDMO-Asia-Pacific, and Mid-Continent Instrument Co.) that cover North America and Asia-Pacific. Revenue is generated primarily from hardware sales of altitude encoders, serializers, and test equipment, supplemented by flat bench-test and certification fees ($75–$200 per unit depending on model) and RMA-based repair services. Pricing is largely quote-based for hardware; the company maintains a dedicated service operation at a second Van Nuys facility for warranty and out-of-warranty repairs. The customer base is broadly distributed across the general aviation and military avionics segments with no named end-customer logo disclosure, and the firm also offers design and manufacturing services to third parties.

Name

Trans-Cal Industries

Legal name

Trans-Cal Industries, Inc.

Website

https://trans-cal.com

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

1–10 employees

Short description

Trans-Cal Industries is a privately held avionics manufacturer founded in 1971 in Van Nuys, California, specializing in solid-state altitude encoders, serializers, and test equipment for aircraft operators, maintenance facilities, and avionics technicians requiring FAA TSO-C88a-certified pressure altitude data.

Ownership category

akta.pro rank

Product category

Aircraft Avionics / Altitude Reporting Equipment

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Aircraft Parts & Auxiliary Equipment, Nec (3728)

akta.pro primary industry

Integrated Modular Avionics (IMA) & Avionics Computing Platforms (IMABAFAI)

akta.pro secondary industry

Avionics Test, Simulation & Calibration Equipment (IMABAFAN)

Keywords

• Altitude encoders
• Avionics test equipment
• Altitude digitizers
• Aircraft transponder interfaces
• Serial data adapters

Headquarters

HQ city

Van Nuys

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Altitude Encoder Hardware Sales: Primary revenue stream from manufacturing and selling solid-state altitude encoders and digitizers for aircraft avionics systems. Products include SSD120 series encoders supporting various altitude ranges and interface configurations.
2. Test Equipment Sales: Revenue from avionics testing equipment including altitude encoder test sets, emulators, simulators, and calibration programmers used by avionics technicians.
3. Service and Bench Testing: Flat bench test and certification fees for solid-state units ($75-$150 depending on model) and RMA-based repair/replacement services for warranty and out-of-warranty units.
4. Crane Safety Systems: Military crane safety systems including the MMS-80 Crane Safety System, expanding into non-avionics industrial applications.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Trans-Cal Industries designs, engineers, and manufactures solid-state altitude encoders and digitizers (SSD120 Nano series and D120-P2-T legacy), serial data interface adapters/repeaters (serializers), altitude encoder test sets and simulators, and adapter plates for the aircraft avionics market. The company also manufactures the MMS-80 Crane Safety System for military and industrial applications. Products are sold directly to avionics technicians and aircraft operators and through a network of authorized stocking distributors across the US, Asia-Pacific, and Europe.

Product overview

Trans-Cal Industries is an avionics hardware manufacturer offering a comprehensive portfolio of altitude reporting devices and test equipment for the aviation industry. The core product line centers on the SSD120 Nano series solid-state altitude encoders (available in multiple variants including standard, enhanced, wet-location, and modular configurations) and the legacy D120-P2-T encoder. These primary products are complemented by supporting accessories including serial data repeaters and interface adapters (serializers) that convert and distribute altitude data across multiple RS-232/RS-485 outputs. The company also manufactures a complete suite of test and calibration equipment including the ATS-350, ATS-400, ADS-100, EET-200 series, and ECP-100 programmers for maintaining and certifying altitude reporting systems. Additionally, Trans-Cal applies its ruggedized electronics expertise to industrial applications through the MMS-80 Crane Safety System.

Differentiator

Problem solved

Functional benefit

Products and services

• SSD120-(XX)N Series Altitude Encoder Primary solid-state altitude encoder/digitizer providing ICAO pressure altitude data output for aircraft transponders and navigation systems.
• SSD120-(XX)NE Altitude Encoder Enhanced version of the Nano series altitude encoder with advanced features and expanded operating capabilities for avionics installations.
• SSD120-(XX)NEH-RS Altitude Encoder for Wet Locations Altitude encoder designed for wet locations with enhanced environmental protection and dual RS232 and RS485 outputs.
• SSD120-(XX)M Modular Altitude Encoder Modular form factor altitude encoder for specific installation requirements with ICAO parallel and dual RS232 output.
• SSD120-35C-RS232 Altitude Encoder Solid-state altitude encoder/digitizer with ICAO Parallel Code and Dual RS232 Output.
• D120-P2-T Altitude Encoder Pressure altitude reporting equipment providing ICAO parallel altitude data output for older aircraft installations.
• SSD120-100N-SDR Serial Data Repeater Serial data repeater providing fan-out of up to ten RS-232 compliant outputs from a single input, breaking the RS-232 one-receiver limitation.
• IA-RS232C-S Interface Adapter (Serializer) Converts parallel 10-bit ICAO pressure altitude data to fan-out of two RS-232 compliant outputs for aircraft system integration.
• IA-RS232C-D Dual Port Interface Adapter Converts parallel altitude data from two altitude reporting digitizers to dual RS-232 outputs, accepting data from one digitizer at a time.
• ATS-350 Altitude Encoder Test Set Test equipment for testing and calibrating altitude encoders and transponders in avionics maintenance.
• ATS-400 Altitude Digitizer Test Set & Simulator Advanced test set that tests, displays, and simulates altitude encoder output supporting ICAO standard, RS232, RS422, RS485, and ARINC 429 Label 203 interfaces.
• ADS-100 Altitude Data Simulator Solid-state device that simulates altitude encoder/digitizer output in both parallel and serial RS232 formats for testing aircraft altitude reporting systems.
• EET-200 Encoder Emulator/Tester Inexpensive diagnostic tool for troubleshooting altitude encoder/transponder problems by emulating altitude encoder output with known good altitude codes.
• EET-200E Encoder Emulator/Tester EET-200 variant specifically targeting the four test points required by EASA AD No. 2006-0265 for certification tasks.
• ECP-100 Altitude Encoder Calibration Programmer Portable calibration device that assigns serial port protocols and calibrates Trans-Cal altitude encoders without using a PC, powered by battery or AC adapter.
• Adapter Plates Mounting adapter plates enabling quick replacement of legacy encoder installations (ACK, Ameri-King, Sandia, Shadin, Narco) with new TCI SSD120-N series encoders using existing mounting trays.
• MMS-80 Crane Safety System Crane safety system designed for military and industrial applications, extending Trans-Cal's ruggedized electronics expertise beyond aviation.

Quantifiable outcome

• 0.3% warranty failure rate for Nano series altitude encoders
• +1 more outcomes

Named customers2 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core.

• Adams AviationcoreChannel Partner/ Reseller/ DistributorStocking distributor for Trans-Cal Industries products, providing inventory and sales to avionics technicians and repair facilities.
• Aircraft SprucecoreChannel Partner/ Reseller/ DistributorMajor stocking distributor for aviation electronics including Trans-Cal altitude encoders and test equipment.
• Dallas AvionicscoreChannel Partner/ Reseller/ DistributorAuthorized stocking distributor providing Trans-Cal products to the aviation maintenance market.
• EPMOcoreChannel Partner/ Reseller/ DistributorStocking distributor in the Trans-Cal distribution network.
• EDMO-Asia-PacificcoreChannel Partner/ Reseller/ DistributorAsia-Pacific region stocking distributor for Trans-Cal Industries products.
• Mid-Continent Instrument Co.coreChannel Partner/ Reseller/ DistributorAuthorized stocking distributor for Trans-Cal altitude encoders and test equipment serving the avionics industry.

Scale indicators3 records

Recent moves6 records

Expansion highlights8 records

Direct peers

• Trig Avionics: Direct competitor producing transponders and supporting avionics, including altitude reporting functions. Comparable as an alternative integrated supplier serving the same general aviation transponder market.
• Shadin Avionics: Direct competitor supplying altitude encoders and avionics data converters. Shadin is one of the legacy brands whose installations Trans-Cal's adapter plates are designed to accommodate, signaling overlap in the same customer use case.
• ACK Technologies: Direct competitor manufacturing altitude encoders and avionics interface products for general aviation. Trans-Cal explicitly lists ACK among the legacy encoder brands whose installations its SSD120-N series and adapter plates are designed to replace.
• Sandia Aerospace: Direct competitor in altitude encoders and avionics interface equipment for general aviation. Trans-Cal adapter plates also target Sandia legacy replacements, evidencing head-to-head competition in encoder retrofits.
• Ameri-King: Direct competitor producing solid-state altitude encoders for general aviation transponders. Trans-Cal adapter plates explicitly support Ameri-King installations, indicating product overlap in the same altitude-reporting category.

Emerging players

• uAvionix: Emerging player in low-cost ADS-B transceivers and altitude reporting solutions for general aviation and UAVs. Comparable as an alternative source for altitude data in transponder and ADS-B applications where Trans-Cal encoders are deployed.
• FreeFlight Systems: Manufacturer of ADS-B and altitude reporting equipment for general aviation and rotorcraft. Overlaps with Trans-Cal's altitude encoder value proposition, particularly in ADS-B Out compliance and transponder integration.

Broad incumbents

• Garmin: Broad incumbent in general aviation avionics, producing integrated transponders and flight decks that include altitude reporting. Represents the platform-level competitive threat to standalone encoder suppliers such as Trans-Cal.
• Honeywell Aerospace: Broad incumbent across commercial and business aviation avionics. Comparable as a supplier of integrated avionics systems that increasingly embed altitude reporting functions Trans-Cal addresses with standalone encoders.

Others

• Mid-Continent Instrument Co. Authorized stocking distributor of Trans-Cal products and also a manufacturer of avionics instruments and MD302 standby attitude modules. Comparable as an ecosystem participant that both resells Trans-Cal encoders and competes in adjacent avionics instrumentation.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

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 Trans-Cal Industries