Enquirer Consulting Group

Reachable Buyer Map

Prepared for Mark King · TSC · US industry segments · August 2026
In defense engineering, first contact usually happens inside a program office or on a teaming call. That reaches the part of the market that already knows the work, and it is quiet about the rest. This map is the rest: the US industry segments where radar, sensor, guidance and electronic warfare engineering gets bought as a subcontract or a teaming partner, who signs inside each one, and roughly how many companies sit there.
Aerospace and airborne platform manufacturers
The largest countable group on this page and the one where a sensor or guidance package is bought as content on somebody else's platform. Unmanned aircraft builders sit inside it and are the fastest moving part of it.
Who signs: director of business development or capture, chief engineer, program manager, director of supply chain and subcontracts.
2,500 to 3,000
US employers registered in aerospace product and parts production
Radar, sensor and RF electronics makers
The closest neighbors to the mission areas you publish, which makes them both the most natural partners and the most direct competition for the same scope. Antenna, receiver and signal processing content is routinely bought here rather than built in house.
Who signs: VP of engineering, director of programs, chief technologist, head of business development.
800 to 1,000
US employers registered in search, detection, navigation and guidance instrument production
Missile, munitions and ordnance manufacturers
Small by count and long by cycle. Seeker, guidance and fuzing content sits inside programs that run for years, so a relationship formed early outlasts several award cycles and several people.
Who signs: program director, chief engineer, director of advanced programs, subcontracts manager.
250 to 350
US employers across guided missile, ordnance and ammunition production
Space and satellite systems companies
The segment where new entrants now outnumber incumbents and where payload, RF and ground segment work is subcontracted as a matter of course, because launch schedules will not wait for internal hiring.
Who signs: VP of engineering, payload lead, director of mission systems, head of partnerships.
350 to 450
US employers across space vehicle production, satellite operations and launch services
Defense engineering and technical services firms
The teaming layer, and the one nobody can buy as a list. Defense focus is not itself an industry code, so these firms are filed alongside every other engineering and research business in the country. They are identified one company at a time, which is exactly why the segment stays open.
Who signs: capture lead, division president, chief growth officer, director of strategic partnerships.
No clean public list
roughly 800,000 organizations are registered to do business with the federal government; the defense engineering subset is not published as a separate class
Government program offices and laboratories
The other customer your site names, and a different buyer entirely. Program offices, service laboratories and test centers are reached by program and by name rather than by category, and the people in them rotate on posting cycles rather than career moves, so the seat matters more than the person.
Who signs: program manager, technical lead, contracting officer representative, laboratory branch chief.
No public employer register
reached by program and by name, one at a time; the difficulty is the reason the segment stays open

Where the openings are

1
Teaming selects for who is already known. The four countable segments above come to roughly 3,900 to 4,800 US employers. In this category a teaming call reaches whichever slice of that has already worked with a firm or heard its name on a program. The rest is not unqualified, it is simply unaware.
2
The buyer here is a seat, not a company. Capture leads, chief engineers and subcontract managers move between manufacturers, and a program win or loss reopens the supplier bench within weeks. A channel built on named seats catches that moment. A relationship channel hears about it after the award.
3
The services layer is the one lists under-work. Because defense focus is not an industry code, anyone buying an off-the-shelf list of defense contractors gets federal registrants rather than engineering buyers. Working that layer properly takes identification rather than purchase, which is the whole reason it stays open.
4
Two audiences do not share one message. The program office and the industry partner buy for different reasons and read completely different things. One channel tends to keep returning to the same door. Two named audiences is a different reach problem, and a solvable one.
Built from public federal registers of US employers and federal registrants, current to the most recent published filing year. Counts are banded deliberately. Owner-only and very small companies are not published in this data, so these figures describe established companies with payroll rather than the whole market. Industry codes are self-reported by the companies themselves, and defense focus is not itself a code, so the services layer is described rather than counted. It describes the market rather than your business, and there is nothing to buy at the end of it.
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