Doble Engineering Company

Doble Engineering Company, doing business as Doble Co, is a manufacturer and lessor of diagnostic testing equipment and software for electric power infrastructure, operating as a 99% prime contractor (471 of 477 awards) across Department of Energy, Department of the Interior, and Department of Defense customer sets. The company is a subsidiary of Esco Technologies Inc., a diversified manufacturing firm headquartered in St. Louis, Missouri. Doble competes full-and-open; none of its recent prime awards carry small business set-asides, though two isolated small-business-set-aside purchase orders appear in the historical footprint (a $16,400 FAA coupling capacitor award in 2023 and a $69,880 Army Corps Prime Power School Phenix system award in 2025). The company operates from Marlborough, Massachusetts and serves 38 distinct federal agencies through a focused portfolio of transformer diagnostic equipment, oil testing and analysis services, equipment leasing and rental, and associated engineering support.

Doble's customer concentration is extreme and durable. The Western Area Power Administration (WAPA, a DOE civilian agency) accounts for 89 awards and $21.7 million in combined potential value; the Bureau of Reclamation anchors 56 awards and $18 million. Together, these two agencies represent 56% of recent awards and 88% of combined potential value across the footprint. The Army Corps of Engineers Portland District adds a third tier (24 awards, $5 million). Across these three customers, Doble performs transformer oil sample analysis, dissolved-gas-analysis monitoring equipment rental, relay test set maintenance and calibration, sweep frequency response analysis, insulation testing equipment lease, and related diagnostic services at hydroelectric power generation and transmission facilities. WAPA's regional structure generates recurring annual task orders: the Upper Great Plains, Rocky Mountain, and Sierra Nevada regions each issue annual delivery orders for transformer oil testing and analysis, typically ranging from $20,000 to $61,500 per order. The Bureau of Reclamation issues larger equipment lease and rental orders (the October 2024 transformer testing lease and service award carries a $2.5 million ceiling with four option years). The Corps of Engineers issues both equipment rentals (a $1.7 million Portland District electrical testing equipment lease with option years through January 2028) and smaller purchases (Sweep Frequency Response Analyzers, Phenix Motor Test Sets, insulation analyzer kits).

Doble's parent vehicles are single-award Indefinite Delivery Contracts. The largest by task-order count are DEWA0002938 (17 task orders, $569 thousand combined value) and 89503221DWA000004 (15 task orders, $568 thousand combined value), both with WAPA. A $4 million IDV with the Bureau of Reclamation (140R1721D0002) has generated three task orders. These vehicles are characteristic of federal power administration procurement: long-term, renewable, performance-based leasing and service contracts with annual task orders tied to operational and maintenance cycles at specific dam, power plant, or transmission system locations. Notable recent prime work includes the October 2026 $4.7 million five-year WAPA definitive contract for lease of diagnostic equipment and services (ultimate completion September 2031), the October 2024 $2.5 million Bureau of Reclamation transformer testing lease with four option years, the February 2023 $1.7 million Army Corps of Engineers Portland District electrical testing equipment rental (now in Option Year 3, running through January 2028), and the June 2026 $303,592 Bureau of Reclamation Relay Testing Software renewal and maintenance sole-source award. NAICS concentration reflects the equipment focus: Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (175 awards); Equipment Rental and Leasing (40 awards); Testing Laboratories and Services (39 awards); and Software Publishers (27 awards), primarily for relay test set software and dissolved-gas-analysis monitoring platforms.

Activity has remained relatively flat year over year, averaging 11–16 awards annually from 2022 through 2025, with 6 awards recorded through October 2026 (reflecting a partial-year snapshot). Combined potential value across the 477-award footprint totals $56.1 million, with $50.2 million obligated (89% realization rate). Seven awards with ultimate completion in the next twenty-four months carry combined potential value of $2.5 million and face recompete risk. Doble maintains a small subcontracting presence (6 sub awards, 1% of footprint), primarily supporting facility operations and maintenance contracts: Amentum Technology Inc. (Center Maintenance, Operations, and Engineering contracts at NASA Langley Research Center; FY24–FY26 renewals); Triad National Security LLC (Los Alamos National Laboratory management contract); Consolidated Nuclear Security LLC (Y-12 National Security Complex operations); and Netcentric Technology LLC (Space Launch Delta 45 infrastructure support). These subs represent specialty service work ancillary to Doble's core equipment business rather than a significant revenue stream. Doble's federal footprint is wholly specialized: transformer diagnostics, high-voltage testing equipment design and manufacture, oil analysis and condition monitoring, and long-term equipment leasing form a narrow, durable customer relationship with federal power administration and hydropower operations across the Department of Energy, Department of the Interior, and the Army Corps of Engineers. The company holds no presence on GWACs, civilian agency IT vehicles, or defense prime contracts outside its diagnostic-equipment and infrastructure-support niche.

Doble Engineering Company offers a comprehensive and extensive scope of diagnostic products and services to test and maintain transformers, bushings, protective relays, circuit breakers, rotating machines and more. Doble Engineering Company is dedicated to helping the global power industry overcome its challenges, no matter how big or how small. For more information, please contact us at (617) 924-4900.