What Comtech PST does

Comtech PST (legally STELLANT PST, d/b/a Power Systems Technology) designs and manufactures high-power solid-state RF and microwave amplifiers and control components for the defense, aerospace, medical, datalinks, and commercial markets. Founded in 1987 and headquartered in Melville, NY, the company produces amplifier modules and rack-mountable amplifier systems covering frequencies from 1 MHz to 18 GHz and output power levels from 5 W to over 30 kW, alongside custom switches, limiters, and multifunction assemblies that integrate filters, couplers, T/R switches, and logic boards into complete transmitter sub-assemblies. Products are qualified to ISO 9001/AS9100 aerospace standards and support demanding airborne, shipborne, and transportable environments for military communications, radar, electronic warfare, IFF, and datalink applications.

The company sells through direct sales from its Melville, NY headquarters and Topsfield, MA control components division, supplemented by an extensive network of US (all 50 states) and international sales representatives covering allied markets across Europe, Asia-Pacific, the Middle East, and Africa. Pricing is quote-based across both standard catalog offerings and customer-specified custom designs, with multi-year program contracts typical for defense engagements. The company now operates as a wholly-owned division of Stellant Systems following Stellant's acquisition of the Power Systems Technology product line from Comtech Telecommunications Corp., and is positioned within Stellant's broader RF portfolio alongside complementary manufacturing operations in Torrance, CA, Williamsport, PA, and Folsom, CA.

No AI/ML capabilities are disclosed; the value proposition rests entirely on analog RF engineering, thermal management at high power densities, and integration of amplifier subsystems with control components. Customer concentration is not publicly disclosed but is structurally high given the dominance of military applications and custom, long-cycle defense program contracting.

Name

Comtech PST

Legal name

STELLANT PST

Website

https://comtechpst.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

251–500 employees

Short description

Comtech PST (now STELLANT PST) designs and manufactures high-power solid-state RF and microwave amplifiers (1 MHz–18 GHz, 5 W–30+ kW) and control components, serving defense, aerospace, medical, datalinks, and commercial markets. It operates as a division of Stellant Systems following its 2023 acquisition.

Ownership category

akta.pro rank

Product category

RF and Microwave Power Amplifiers

SIC

Communications Equipment, Nec (3669)

akta.pro primary industry

Power Amplifiers (PAs) & Envelope Tracking ICs (HDAHAMAB)

Keywords

• RF power amplifiers
• Solid-state amplifiers
• Microwave control components
• High power amplifiers
• Transmitter sub-assemblies

Headquarters

HQ city

Melville

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales - Amplifiers: Sale of RF and Microwave solid-state power amplifiers including modules and rack-mountable units. Products available in both standard configurations and customized designs.
2. Hardware Sales - Control Components: Sale of RF and Microwave control components including limiters, switches, and multifunction assemblies. Both catalog and custom designed units available.
3. Custom Product Design: Custom designed products to meet required performance specifications, including multifunction assemblies with switches, limiters, and LNAs

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Comtech PST designs and manufactures high-power solid-state RF and microwave power amplifiers and associated control components for defense, aerospace, medical, datalink and commercial customers. Its product portfolio spans amplifier modules and rack-mountable amplifier systems covering 1 MHz to 18 GHz with output power from 5 W to over 30 kW, plus custom switches, limiters, and multifunction assemblies integrating switches, limiters, LNAs, filters, couplers and logic boards into complete transmitter sub-assemblies. Both standard catalog products and custom engineered solutions are offered, manufactured under ISO 9001/AS9100 quality systems.

Product overview

Comtech PST (Power Systems Technology) is a premier supplier of high power solid state RF and microwave amplifiers and control components. The company offers a portfolio of products including amplifier modules and systems (with frequency ranges from 1 MHz through 18 GHz and output power levels ranging from 5 watts to over 30 kW), switches, limiters, and multifunction assemblies. These products are designed for various applications including military, aerospace, medical, datalinks, and commercial use. The amplifier modules serve as building blocks that are combined into rack-mountable amplifier systems, while control components including switches and limiters can be integrated into multifunction assemblies for complete subsystem solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Amplifier Modules RF and microwave solid-state amplifier modules designed as building blocks for amplifier systems, available from 1 MHz to 18 GHz and 20 W to multi-kilowatt output power levels, sold to defense, aerospace, medical, datalink and commercial customers.
• Amplifier Systems Complete rack-mountable RF and microwave solid-state amplifier systems built from amplifier modules, available from 1 MHz to 18 GHz with up to multi-kilowatt output power levels, for military, aerospace, medical, datalink and commercial use.
• Switches Custom high-power RF and microwave switches that integrate with other components to create T/R assemblies and high-power control front-ends including filters, couplers and logic boards.
• Limiters RF and microwave limiter control components that provide limiting functionality for amplifier systems and integrated control assemblies, offered as catalog or custom-designed units.
• Multifunction Assemblies Custom integrated RF and microwave multifunction assemblies incorporating switches, limiters, and LNAs designed to customer requirements, providing complete transmitter sub-assemblies when combined with PST amplifiers.
• Control Components Custom high-power RF and microwave control component products (switches and limiters) integrated with filters, couplers and logic boards to create complete transmitter sub-assemblies, with liquid or forced-air cooling options.

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Stellant SystemscoreOthersStellant Systems completed the acquisition of Power Systems Technology (PST) product line from Comtech. PST is now operating as a division of Stellant Systems. This acquisition integrated PST's high power solid-state amplifier capabilities into Stellant Systems' portfolio of RF technologies.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Raytheon (RTX): Major defense prime that both buys and competes with specialty RF amplifier suppliers through its own RF/microwave subsystem capabilities; represents both a customer and incumbent competitor for PST.
• L3Harris Technologies: Large defense prime with extensive RF, EW, and communications electronics portfolios; competes with PST across multiple defense RF amplifier sockets as part of a much broader platform offering.
• Northrop Grumman: Defense prime with deep in-house RF/EW and radar capabilities; competes with PST for amplifier and control-component content on major EW and radar programs while also serving as a customer.
• Mercury Systems: Broader defense electronics supplier with mission-critical RF, microwave, and EW subsystem capabilities — competing with PST as a multi-product prime-facing incumbent rather than a single-category specialist.

Direct peers

• RFHIC: Manufactures GaN-based RF power amplifiers and sub-systems for defense, radar, and communications — overlapping PST's solid-state high-power amplifier portfolio in the same defense end-markets.
• Empower RF Systems: Specialty vendor of high-power solid-state RF amplifier modules and rack systems across broadband frequencies — a direct niche competitor to PST in custom and standard high-power SSPA solutions.
• Qorvo: Supplies high-power GaAs and GaN RF amplifiers and front-end modules for defense radar, EW, and communications — directly overlapping PST's core solid-state amplifier offering for military customers.
• Triad RF: Designs and manufactures RF/microwave power amplifiers and integrated amplifier assemblies for defense and aerospace — a smaller but directly comparable high-power amplifier specialist.
• MACOM Technology Solutions: Designs and manufactures high-performance RF, microwave, and millimeterwave semiconductors and amplifier components serving defense, aerospace, and communications end-markets closely aligned with PST's customer base.
• Communications & Power Industries (CPI): Provides high-power amplifier subsystems including solid-state and vacuum-electronics solutions for radar, EW, and communications — a clear adjacent specialty competitor to PST within defense RF.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/comtech-pst

Compliance2 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 Comtech PST