Probe Master Inc.

Probe Master Inc., a veteran-owned small business manufacturer based in El Cajon, California, supplies electrical testing equipment components and cable assemblies to the Defense Logistics Agency as a prime contractor exclusively, competing predominantly in full-and-open procurements rather than under set-aside vehicles despite its veteran-owned designation. The company manufactures oscilloscope probes, differential probes, test leads, probe-lead assemblies, cable assemblies for radio frequency equipment, electrical clips, test adapters, and dummy loads, with a product portfolio centered on NSN-driven component procurement for military logistics and supply chain support.

Probe Master's customer concentration is extreme and stable. The Defense Logistics Agency Land and Maritime accounts for 273 of 391 total prime awards (70% by count) and $3.5 million in combined potential value (67% by dollars), while DLA Aviation adds 62 awards ($1 million) and subordinate DLA entities contribute 14 awards ($100 thousand). The top five customers account for 92% of all awards and 90% of combined potential value, with no material diversification to other federal agencies — the Department of the Army, Marine Corps, and Navy combined represent fewer than 10 awards. This concentration reflects Probe Master's position as a certified supplier to DLA's global supply chain, operating against standing Indefinite Delivery Contracts rather than pursuing broad-market federal capture.

Recent activity has contracted sharply. Award volume ran at 11 to 23 awards per year from 2022 through 2024, dropped to 13 in 2025, and stands at only 2 awards year-to-date in 2026, signaling either recompete consolidation within existing IDCs or demand compression. Combined potential value across all 391 awards stands at $5.2 million with only $1.8 million obligated (36% realization), indicating a high concentration of ceiling-value IDCs with low attach rates. Probe Master holds at least three standing single-award IDCs with DLA: a $350,000 Total Small Business set-aside for test leads awarded March 3, 2026 (completion March 3, 2027), a $250,000 Total Small Business set-aside for radio frequency cable assemblies awarded February 28, 2024 (completion February 28, 2029), and an expired $250,000 Total Small Business set-aside for lead testing services that ran through June 6, 2023. Individual purchase orders and delivery orders under these IDCs typically range from $300 to $13,000, with the largest single award a $645,250 lead testing purchase order from DLA Land and Maritime in June 2023 being an outlier. Performance occurs at Probe Master's El Cajon facility and at DLA depots across CONUS and overseas consolidation points.

Awards are categorized primarily under NAICS codes for instrument manufacturing for measuring and testing electricity (108 awards), fluid meter manufacturing (87 awards), and electronic component manufacturing (72 awards), with federal PSC codes split between electrical and electronic testing instruments (273 awards) and cable and wire assemblies (60 awards). The vendor competes in full-and-open procurements across most awards; only a minority of recent IDC awards (including the March 2026 and February 2024 contracts) carry Total Small Business set-aside designations, indicating that Probe Master wins most work outside set-aside protection despite holding veteran-owned status. With no subcontract footprint and no parent vehicle holdings outside standing DLA IDCs, Probe Master operates as a direct supplier to a single customer agency through a thin pipeline of highly commoditized, low-dollar component orders.

LEAD, TEST,OSCILLOSCOPE PROBES,BNC CABLES, PRECISION BNC CABLES, TERMINATIONS 50 OHM, TERMINATIONS, 75 OHM, TERMINATIONS 600 OHM. LEAD SET,MULTIMETER TEST LEADS, ELECTRONIC INSTRUMENTS, DIFFERENTIAL PROBES, PROBE LEADS,