Essex Electro Engineers Inc.

Essex Electro Engineers Inc., a Schaumburg, Illinois-based small-business manufacturer of specialty power systems, operates as a prime contractor on 100 percent of its federal awards, delivering diesel generators, mobile electric power plants, power controllers, and Low Maintenance Electrical Power Production (LMEPP) units primarily to Navy, Air Force, and Army customers under single-award and multiple-award indefinite delivery contracts. The company competes predominantly in the full-and-open market without SBA set-aside designations on most work, though certain delivery orders carry Total Small Business set-asides; Essex is a for-profit Subchapter S corporation with no reported minority or disadvantaged-business certifications.

Essex's customer base concentrates heavily on defense logistics and maintenance operations. The Department of the Air Force Materiel Command Lifecycle Management Center at Robins Air Force Base leads by potential value at $166.5 million across 59 awards, while the Naval Air Systems Command Naval Air Warfare Center contributes $111.2 million across 50 awards. The Department of the Navy Naval Air Systems Command adds $55.6 million across 12 awards, and the Army Materiel Command Contracting Command at Detroit Arsenal accounts for $41.4 million across 10 awards. These four customers represent the bulk of the $399.8 million combined potential value across all 694 awards tracked in the source, with 96 percent of potential value concentrated among the top five customer agencies. By award count, the Department of the Navy and Department of the Air Force each field 89 awards, but the Air Force Materiel Command venue at Robins concentrates substantially more dollar value, signaling that Air Force work skews toward larger production and sustainment delivery orders while Navy awards are more fragmented.

Essex holds three primary indefinite delivery contracts. The largest is a $36.9 million single-award power controller IDC with ACC Warren (Army Materiel Command Contracting Command Detroit Arsenal) running through September 2027, under which two delivery orders have been issued: a $1.49 million order in September 2022 for 75 power controllers with first-article testing, and a $1.14 million order in July 2025 for 58 additional units due by November 2026. A $46.7 million single-award LMEPP production contract with the Naval Air Warfare Center (referenced repeatedly across the award summaries as running through January 2027) anchors Navy work, with multiple year-one, year-two, and year-three production delivery orders ranging from $179 thousand to $12.2 million. A $2.87 million Air Force Sustainment Center diesel engine IDC (running through September 2026) completes the vehicle portfolio. Against these vehicles, Essex issues delivery orders and receives purchase orders for specific items — power distribution panels, 400Hz generator systems, mobile electric power plants for the UH-60M Black Hawk program, engine control modules, and generator sets — with firm fixed-price and unit-price structures.

Recent work samples illustrate Essex's production and sustainment profile. A $1.26 million delivery order from Naval Air Warfare Center (March 2026) covers LMEPP units year-three production due by December 2027; a $1.14 million Army delivery order (July 2025) adds 58 power controller units due by November 2026; a $667 thousand Naval Supply Systems Command purchase order (March 2026) procures power distribution panels due by November 2026; and a $612 thousand Naval Sea Systems Command order (September 2024) covers three custom 400Hz diesel generator systems with startup training and documentation due by July 2025. Essex's capability portfolio spans diesel and electric power generation (generators, mobile electric power plants, 400Hz systems), power distribution and control equipment (panels, controllers, converters), and aircraft support equipment (LMEPP units for helicopter and transport programs). The company manufactures at its Schaumburg facility and meets MIL-STD packaging, Buy American, and free-trade-agreement compliance requirements.

Activity has declined materially from historical highs. Awards per year dropped from 16 in 2023 to 7 in 2024 and 6 in 2025, with only 3 awards recorded year-to-date in 2026. This trajectory suggests either a narrowing customer pipeline or a shift toward larger, multi-year delivery orders against standing IDCs rather than new competitive wins. The recompete cliff over the next twenty-four months exposes 9 awards with combined potential value of $12.5 million to completion and recompete risk. By category, Essex concentrates in motor and generator manufacturing (142 awards), power distribution and specialty transformer manufacturing (46 awards), and other aircraft parts and auxiliary equipment manufacturing (29 awards), with PSC codes dominated by generators and generator sets (174 awards) and electrical control equipment (114 awards).

Essex maintains a minimal subcontractor footprint, with three recorded sub-awards to major primes: BAE Systems Information and Electronic Systems Integration for F-16 support equipment distribution boxes (awards in May 2025 and December 2023) and The Boeing Company for B-52 Commercial Engine Replacement Program aerospace support (February 2025). The vendor's role in the broader defense industrial base appears to be that of a specialized component and equipment supplier embedded in Navy and Air Force sustainment networks rather than a systems integrator or platform prime.

Ground Power Units

Contract Manufacturing