Sidecar Enterprises Inc.

Sidecar Enterprises Inc., doing business as Sei, is a veteran-owned, service-disabled veteran-owned small disadvantaged business subsidiary of EOS Inc. that supplies automotive and mechanical parts to the Defense Logistics Agency as a prime contractor (100% of recent awards). Headquartered in North Charleston, South Carolina, Sei operates exclusively as a prime vendor with a focus on Defense Logistics Agency supply-chain fulfillment through indefinite delivery contracts and delivery orders.

Sei's customer concentration is heavily concentrated within the Defense Logistics Agency's divisions. The top five funding agencies account for 100% of recent awards, with Defense Logistics Agency Land and Maritime dominating at 313 awards carrying $12.2 million combined potential value—nearly all of the vendor's footprint. The remaining awards distribute across DLA Troop Support Hardware (48 awards, $499 thousand), DLA Aviation (14 awards, $104 thousand), DLA Troop Support Construction and Equipment (15 awards, $87 thousand), and a single award to the Department of Veterans Affairs. This concentration reflects Sei's tight integration into DLA's spare-parts procurement ecosystem rather than diversified federal customer exposure.

Sei's capability footprint spans discrete automotive and mechanical components procured through indefinite delivery contracts with ceiling values of $250,000 each. Representative work includes a $20,880 firm fixed-price delivery order (March 2026, total small business set-aside) for pressure tanks from DLA Land and Maritime; a $45,441 total small business set-aside purchase order (August 2023) for battery box covers; a $15,905 delivery order (January 2023) for battery box covers; and sustained orders for steering wheels, brake drums, windshield wiper motors, fastener tape, hose assemblies, pipe couplings, modification kits, and control boxes—all common replacement parts supporting military vehicle and equipment readiness. Most delivery orders carry firm fixed-price terms and range from under $500 to $50,000 per order. Sei competes across multiple set-aside categories, including total small business, service-disabled veteran-owned small business, and HUBZone designations, though the vendor also wins delivery orders under no-set-aside (full-and-open) competition.

Sei holds over 25 active indefinite delivery contracts with DLA Land and Maritime, each valued at $250,000 and covering distinct product categories. The contracts named in the source include vehicles for pressure tanks ($350,000 ceiling, awarded December 2025), positive drive belts ($250,000, awarded September 2025 and September 2024), switch boxes, steering wheels, modification kits, windshield wiper motors, brake drums, fastener tape, window washer pumps, frame sections, dummy connectors, horn buttons, and other components. The indefinite delivery structure enables DLA to consolidate recurring procurement requirements and place task orders as needed rather than managing separate solicitations for each component type.

Activity has contracted sharply. Sei received 93 awards in 2022, 58 in 2023, 19 in 2024, 9 in 2025, and 2 in 2026—a decline of approximately 98% from peak volume. Combined potential value across the entire 392-award portfolio stands at $12.9 million, with only $3.1 million obligated (24%). The recompete cliff shows minimal near-term exposure: only one award (combined potential value $21 thousand) faces completion within the next twenty-four months, suggesting most of Sei's contract vehicles completed or expired before the current window.

Sei operates as a subsidiary of EOS Inc., a veteran-owned for-profit manufacturer and Subchapter S corporation based in North Charleston. The parent company's designation and manufacturing heritage provide Sei with sourcing capabilities and defense industry experience, though Sei functions as the named prime contractor on all federal awards in the source. Sei's NAICS concentration reflects its spare-parts role: Bolt, Nut, Screw, Rivet, and Washer Manufacturing (54 awards); Other Motor Vehicle Parts Manufacturing (34 awards); Motor Vehicle Electrical and Electronic Equipment Manufacturing (33 awards); and related categories. PSC concentration mirrors this, with Vehicular Furniture and Accessories leading at 83 awards, followed by Vehicular Brake, Steering, Axle, Wheel, and Track Components (44 awards). Sei competes predominantly under small-business set-asides, reflecting its socioeconomic designations and their prevalence across DLA procurement vehicles, though approximately one-third of recent orders carry no set-aside designation.