Appledore Marine Engineering, LLC

Appledore Marine Engineering, LLC, a Portsmouth, New Hampshire-based for-profit limited liability company, delivers waterfront infrastructure inspection, assessment, and architectural-engineering design services to federal maritime agencies as a prime contractor on delivery orders and indefinite delivery contracts. The vendor operates as a small business and competes predominantly under full-and-open (non-set-aside) designations, though roughly one-quarter of recent task orders carry small-business set-aside flags.

Appledore's customer base concentrates heavily on maritime agencies. The top five funding agencies account for 89% of combined potential value, led by the U.S. Coast Guard (153 awards, $120 million combined potential value) and Naval Facilities Engineering Command (70 awards, $57.7 million), followed by Naval Installations Command (19 awards, $20.9 million), Naval Sea Systems Command (15 awards, $6.7 million), and Naval Supply Systems Command (2 awards, $3 million). The Coast Guard's dominance reflects Appledore's anchor position on the Ocean Engineering Services MATOC, a $40 million small-business set-aside multiple award task order contract established in April 2021 and running through April 2026, from which 37 task orders have yielded $19.9 million in combined potential value. Beyond the MATOC, Appledore holds seats on several other Navy indefinite delivery vehicles, including IDC DTCGG104D3WK053 (61 task orders, $17.7 million), IDC N6247306D3004 (52 task orders, $8.8 million), and the now-expired USCG Nationwide Ocean Architect Engineering contract (43 task orders, $12.7 million through 2021).

Appledore's capability portfolio centers on waterfront facility inspections (above and below water), structural assessments, aids-to-navigation (ATON) design and repair, waterfront condition surveys, and maritime infrastructure engineering design across coastal U.S. locations and overseas installations including Alaska, Hawaii, Guam, and Port Hadlock, Washington. Representative recent work includes a $2.56 million Coast Guard delivery order for architecture-engineering design to recapitalize the waterfront at USCG Station Portsmouth Harbor (May 2026), a $2.675 million Naval Sea Systems Command order for underwater electromagnetic measurement system (UEMMS) magnetic silencing facility work at Naval Magazine Indian Island, Port Hadlock (March 2026), a $1.39 million Coast Guard waterfront inspections task order for Districts 11 and 13 (January 2025), and a $1.33 million Naval Facilities Engineering Command contract for waterfront infrastructure and assessment services at Naval Base Kitsap-Bangor, Washington (August 2022). The vendor also performs specialized work including shiplift life-cycle cost analysis, wave attenuation studies, and post-construction inspections of electromagnetic measurement systems.

Award activity has remained relatively steady over the past five years—14 awards in 2022, 13 in 2023, 14 in 2024, declining to 9 in 2025 and 4 in early 2026. Ten awards (combined potential value $11.8 million) face ultimate completion within the next twenty-four months and therefore present recompete exposure. Appledore operates as a pure prime on federal maritime work; the vendor is not a notable subcontractor, with only one recorded federal contract sub-award (a Stantec Consulting Services prime for P381 dry-dock marine engineering services in Kittery, Maine, April 2024). Across SCI-reportable service contracts (FY2023–FY2024), Appledore invoiced $5 million with roughly 5.1 FTEs in FY2023 and 7.1 FTEs in FY2024; government-paid hourly rates on these contracts ranged from a 10th percentile of $146.26/hr to a median of $195.71/hr and 90th percentile of $325/hr, reflecting a mix of engineering and inspection labor. The vendor's SCI-reported subcontracting share averaged 1% of total hours across prime contracts, indicating an in-house delivery model with minimal sub reliance for the larger-dollar service contracts captured in the SCI dataset.

We are a dynamic consulting engineering firm dedicated to providing marine/waterfront design and inspection services around the world. Our responsiveness and quality is well documented in many years of excellent performance ratings.