Flores Serrano Guillermo Sebastian

Flores Serrano Guillermo Sebastian, a sole proprietorship based in Quito, Ecuador, delivers facility construction, renovation, and maintenance services to the U.S. Department of State as a prime contractor, operating exclusively in overseas locations on a full-and-open, non-set-aside basis.

The vendor's entire federal footprint consists of eleven prime awards totaling $2 million across four years, with all work concentrated in Ecuador and all customer relationships rooted in the Department of State. The Bureau of Overseas Building Operations accounts for 100% of active purchasing, placing nine awards valued at $2 million combined, while the Bureau of Diplomatic Security and the Bureau of Western Hemisphere Affairs each placed one smaller award. Recent representative work includes a $1.39 million design/build contract for comprehensive renovation services at the Chief of Mission Residence in Quito (ultimate completion September 30, 2026, competitively awarded September 30, 2025), which encompassed pool area construction with jacuzzi, restrooms, lockers, barbecue zone, exterior lounge, and steam room; a $231,356 definitive contract for vehicle parking place construction and renovation (awarded July 20, 2023, completion September 30, 2026); a $132,365 lightning protection system repair contract (awarded April 12, 2022); and a $74,500 annex building bathroom remodeling contract (awarded July 20, 2022, completed October 30, 2022). The vendor also performs smaller discrete facility tasks including skylight and Mylar installation ($10,973), front entrance maintenance and repair ($18,400), railing restoration ($18,204), and kitchen and bathroom renovation ($65,269).

Activity has been episodic rather than sustained — three awards in 2022, two in 2023, four in 2024, one in 2025, and one in 2026 — and appears concentrated in high-value facility work with multi-year performance periods. Only one award (the $18,400 front entrance maintenance and repair contract, awarded September 24, 2026) faces completion within the next twenty-four months. The vendor operates without federal grant revenue, has no parent contract vehicles or IDVs in the source data, and places no subcontractors — all work is performed directly. As a sole proprietorship without SBA certifications, Flores Serrano Guillermo Sebastian competes in full-and-open procurements and brings localized expertise in Ecuador-based construction and facility management for U.S. diplomatic installations abroad.