Liollio Architecture PC

Liollio Architecture PC, a self-certified small disadvantaged business and woman-owned small business subsidiary based in Charleston, South Carolina, provides architectural and engineering design services as a prime contractor exclusively to the National Park Service and other Interior Department civilian agencies, competing in full-and-open procurement without set-aside restrictions.

Liollio operates as a wholly-owned subsidiary of Watson Tate Savory Liollio Architecture, Inc., a woman-owned small business parent holding the primary corporate designation. The firm's capability portfolio centers on architectural and engineering services for federal facilities and infrastructure—specifically predesign, schematic design, design development, construction documents, National Environmental Policy Act compliance, environmental assessments, construction administration, and project scoping. Recent representative work includes a $416.8 thousand firm fixed-price delivery order from the National Park Service for architectural and engineering design services supporting repair and rehabilitation of Cades Cove's water and wastewater systems at Great Smoky Mountains National Park (awarded January 2026, completion July 2026); a $571.7 thousand order for predesign and schematic design services for family home rehabilitation (awarded June 2025, extended to July 2026); and a $234.6 thousand order for architectural and engineering services supporting maintenance facility replacement at Virgin Islands National Park (awarded July 2025, completion July 2026).

Liollio's customer base is highly concentrated within the Department of the Interior. The National Park Service National Office accounts for 36 awards totaling $30.3 million in combined potential value, while the National Park Service Southeast Region places 58 awards totaling $15.6 million, together representing 100% of tracked awards. The remaining customer set—Fish and Wildlife Service Region 4 and Region 5, and the Department of Veterans Affairs Veterans Integrated Service Network 7—account for negligible volume. This concentration is characteristic of a vendor whose entire federal footprint derives from a single agency relationship.

Liollio holds a single-award indefinite-delivery, indefinite-quantity contract with the National Park Service National Office valued at $10 million with a Total Small Business set-aside designation, running through February 2027. This IDIQ is the parent vehicle for the majority of Liollio's work; as of the most recent activity in the source, 13 delivery orders totaling approximately $3.5 million have been issued under this contract. Liollio also operates under three legacy indefinite-delivery vehicles—DOI Southeast A-E Services 2014–2019 (40 task orders, $3.5 million), Indefinite Delivery Contract INP15PC00857 (27 task orders, $6.4 million), and Indefinite Delivery Contract INF13PC00002 (7 task orders, $387 thousand)—which represent prior-period work. The firm's work is performed nationwide across subordinate sites at Great Smoky Mountains, Everglades, Gulf Islands, Congaree, Virgin Islands, and Cape Lookout National Seashores, as well as Chickamauga and Chattanooga National Military Park and Cumberland Island and Fort Frederica National Monuments, with administrative oversight and primary performance from Charleston, South Carolina, and subordinate performance from Denver, Colorado.

Activity volume has contracted in recent years. Liollio received 5 awards in 2022, 9 in 2023, 4 in 2024, 4 in 2025, and 1 in 2026 to date—a consistent decline from the 2023 peak. Only 3 awards with combined potential value of $271 thousand face ultimate completion within the next twenty-four months, presenting a limited recompete cliff. SCI-reportable invoiced revenue across federal service contracts above the $150,000 threshold totaled $1.7 million across FY2022–FY2025 ($349 thousand in FY2022, $207 thousand in FY2023, $374 thousand in FY2024, and $785 thousand in FY2025). The SCI dataset reflects roughly 0.4 FTEs in FY2022, 0.3 FTEs in FY2023, 9.7 FTEs in FY2024, and 0.7 FTEs in FY2025 delivered to the federal government on these service contracts; SCI is a narrow subset of Liollio's total federal contract work, which includes architectural goods and product deliverables excluded from SCI reporting. On federal service contracts captured in SCI, median government-paid rates ran approximately $277.57 per hour, with senior labor pricing reaching $899.61 per hour. Liollio performs 100% of its federal work as a prime contractor with no subcontractor engagement, building its own delivery teams rather than serving as a feeder to larger primes. The firm's 106 awards across all federal sources carry a combined potential value of $47.2 million, with $16.3 million obligated to date (35% of potential value).