L & J Building Company LLC

L & J Building Company LLC, doing business as Rock Enterprise, is a self-certified small disadvantaged business headquartered in North Kansas City, Missouri, that delivers commercial and institutional construction, HVAC replacement, facility renovation, and equipment rental services to federal agencies exclusively as a prime contractor. The company operates as a limited liability partnership and competes in full-and-open and small-business set-aside procurements across military, civilian, and Veterans Affairs facilities.

Rock Enterprise's customer concentration is heavily skewed toward the Veterans Health Administration. The top five funding organizations account for 62% of recent award volume but 94% of combined potential value, driven by two VA regional networks: Veterans Integrated Service Network 23 (12 awards, $103.4 million combined potential value) and Veterans Integrated Service Network 15 (35 awards, $97 million combined potential value). The General Services Administration Public Buildings Service Region 6 anchors a single massive $75 million award, while the Department of the Air Force Air National Guard (4 awards, $21.4 million), the Department of the Navy Naval Facilities Engineering Command (4 awards, $2.6 million), and the United States Marine Corps (14 awards, $5.5 million) round out the active customer set. The dollar concentration and award-count concentration diverge sharply — VA's regional networks dominate dollars while Marines generate volume — a structural signal of Rock Enterprise's positioning as a reliable vendor for smaller, high-frequency facility repair and upgrade work across military installations and VA medical centers alongside occasional large-scale construction contracts.

Rock Enterprise sits on multiple indefinite delivery contracts. The largest parent vehicle is VA Indefinite Delivery Contract VA25512D0011 (24 task orders, $27 million combined potential value), followed by Navy Indefinite Delivery Contracts N4008314D1007 (9 task orders, $2 million) and N4008314D1013 (7 task orders, $2.2 million). The vendor also holds a VISN 23 Construction MATOC (2014–2018) with 7 task orders valued at $3.1 million combined potential and an Army Indefinite Delivery Contract W9124319D0004 (3 task orders, $6 million).

Recent representative work includes a $5.055 million total small-business set-aside contract with the National Park Service to construct a new entrance station at Joshua Tree National Park in California (ultimate completion February 2026), a $4.467 million Air National Guard delivery order to renovate an aircraft sustainment equipment storage facility (ultimate completion August 2025), and a $459,460 total small-business set-aside contract with the Air National Guard to upgrade HVAC systems at a communication facility in St. Joseph, Missouri (ultimate completion June 2026). The vendor also performs smaller facility maintenance and equipment rental work — a $194,227 cooling tower rental for the Air Education and Training Command (completed February 2025) and a $162,000 HVAC replacement at the Naval Air Warfare Center (scheduled completion October 2026) exemplify the higher-volume, lower-dollar task order activity characteristic of Rock Enterprise's VA and service-branch customer base.

Activity has been intermittent across the portfolio's full span: one award in 2022, one in 2023, two in 2024, one in 2025, and one in 2026, reflecting a long operational history punctuated by sporadic high-value awards rather than steady growth. Only one award ($162,000) faces ultimate completion within the next twenty-four months, indicating most of Rock Enterprise's current pipeline extends beyond the near-term recompete horizon. The vendor's NAICS concentration is heavily weighted toward Commercial and Institutional Building Construction (64 awards) with secondary strength in Electrical Contractors and Other Wiring Installation Contractors (21 awards) and Plumbing, Heating, and Air-Conditioning Contractors (8 awards), positioning it as a facility construction and systems-upgrade generalist across federal real property portfolios.