Appledore Marine Engineering, LLC

Portsmouth, NH

UEI
QGMDLA2YJ9C4
CAGE
34GQ8
Primary NAICS
541330 Engineering Services
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • For Profit Organization
  • Limited Liability Company
Entity structure
Corporate Entity (Not Tax Exempt)
SAM.gov registration date
Physical address
600 State Street e, Portsmouth, NH 03801, USA
Founded
1870
Employees
11-50
Estimated annual revenue
$1M-$10M
Industry
  1. Industrials
  2. Capital Goods
  3. Construction & Engineering
  4. Civil Engineering
SIC code
87 Engineering & Management Services
Profiles

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $0
FY2026 $12,972,127
FY2025 $6,267,361
FY2024 $4,786,420
FY2023 $3,843,084

Top agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Homeland Security $9,908,600
2 Department of the Navy $3,063,527

Contract vehicles

No active vehicles.

3 expired vehicles

Contract awards

Latest 5 listed here. See the rest on GovTribe.

Contract subawards

Prime contractor Prime award Amount Awarded
Stantec Consulting Services Inc. P381 PCAS SERVICES FOR BALANCE OF CALENDAR YEAR 2024 THRU DECEMBER 31. Additional Marine Engineering Services in support of the P381 Multi-Mission Dry Dock… N4008521F6284 $50,000

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About the company

Appledore Marine Engineering, LLC, a Portsmouth, New Hampshire-based for-profit limited liability company, operates as a pure prime contractor delivering waterfront infrastructure inspection, assessment, and architectural-engineering design services to federal maritime agencies under small-business set-asides and full-and-open competition. The vendor competes across both postures — 78 percent of recent awards carry small-business designations (predominantly Total Small Business set-asides), while the remainder are full-and-open — and has served eight federal customer agencies over the past several years, with a concentration among maritime-focused defense components.

Appledore's customer base is heavily concentrated among maritime and Navy stakeholders. The Department of Homeland Security US Coast Guard dominates both award volume and dollar share, accounting for 156 of 343 total awards (45 percent) and 123.9 million dollars of 238.4 million dollars combined potential value across the portfolio. The Department of the Navy Naval Facilities Engineering Command follows with 71 awards carrying 58.1 million dollars, followed by the Navy Installations Command (19 awards, 20.9 million dollars) and Naval Sea Systems Command (15 awards, 6.7 million dollars); these four agencies comprise 78 percent of awards and 89 percent of combined potential value. The vendor's portfolio reflects a classic maritime infrastructure play: waterfront facility inspections and condition assessments dominate the work mix, with recurring engagement in aids-to-navigation design and repair, seawall and bulkhead assessment, and underwater electromagnetic measurement system support across coastal U.S. locations and overseas installations including Guam and Alaska.

Appledore's core vehicle positioning centers on the Coast Guard's Ocean Engineering Services Multiple Award Task Order Contract (MATOC), a 40 million dollar small-business set-aside IDIQ established in April 2021, under which 40 task orders carried 24.6 million dollars combined potential value through the source snapshot. Additional vehicles include three Navy Indefinite Delivery Contracts with 52, 61, and 63 task orders respectively and an older Coast Guard MATOC (USCG Nationwide Ocean Architect Engineering 2016–2021) that issued 43 task orders carrying 11.9 million dollars. Three recent delivery orders exemplify the vendor's scope: a 1.695 million dollar Competitive Total Small Business delivery order from the Coast Guard in September 2026 for architect-engineer design services to recapitalize the waterfront at Station Brant Point on Nantucket, Massachusetts; a 1.9 million dollar delivery order for architect-engineer services supporting waterfront inspections across Coast Guard Districts Southwest and Northwest with performance in Oakland, California; and a 2.675 million dollar delivery order from Naval Sea Systems Command for Underwater Electro-Magnetic Measurement System work at Naval Magazine Indian Island, Port Hadlock, Washington. Activity has remained steady across the past five years — 14 awards in 2022, 13 in 2023, 14 in 2024 — though 2025 and 2026 show a decline to 9 and 8 awards respectively, signaling potential pipeline contraction. Thirteen awards with combined potential value of 15 million dollars face ultimate completion in the next twenty-four months, presenting recompete risk for the vendor and corresponding opportunity for competitors.

SCI-reported invoicing shows 11 million dollars in prime service-contract revenue across FY2023–FY2025, with trajectory upward: 2.1 million dollars in FY2023, 2.9 million dollars in FY2024, and 6 million dollars in FY2025. The associated workforce shown in SCI grew from 5.1 FTEs in FY2023 to 14.7 FTEs in FY2025, indicating staffing ramp aligned with revenue growth. Government-paid hourly rates on Appledore's SCI-reportable service contracts ranged from 146.26 dollars per hour at the tenth percentile to 325 dollars per hour at the ninety-first percentile, with a median around 195.71 dollars per hour, reflecting a mix of field inspection labor and senior engineering labor. Critically, Appledore operates as a pure prime performer: across SCI-reportable contracts, subcontractors accounted for only 1 percent of total contractor hours, and the vendor has identified six named subcontractors across its prime portfolio. The vendor maintains minimal subcontracting reliance and has been awarded only one sub-award in the source dataset — a 2024 subcontract to Stantec Consulting Services Inc. for marine engineering services supporting the P381 multi-mission dry dock project at Kittery, Maine — making Appledore functionally a solo-delivery provider rather than a feeder to larger primes.

SBA capabilities narrative

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.

Quick answers

Is Appledore Marine Engineering, LLC registered in SAM.gov?

Yes. Appledore Marine Engineering, LLC's SAM.gov registration is active through September 9, 2027.

Which contract vehicles does Appledore Marine Engineering, LLC hold?

Appledore Marine Engineering, LLC holds a place on 3 federal contract vehicles, including Ocean Engineering Services MATOC, USCG Nationwide Ocean Architect Engineering 2016-2021 and SeaPort-e.

How much has Appledore Marine Engineering, LLC received in federal contracts?

Federal contracts obligated $6,267,361 to Appledore Marine Engineering, LLC in fiscal year 2025 and $27,868,992 in fiscal years 2023 through 2027.

How does Appledore Marine Engineering, LLC rank among federal contractors?

Appledore Marine Engineering, LLC ranked #3 in PSC C216, #12 in PSC C1QA and #12 in PSC C220 in FY2025.

What is Appledore Marine Engineering, LLC's most recent federal award?

Appledore Marine Engineering, LLC's most recent federal contract award is FY26 waterfront inspections at various U.S. Coast guard east and great lakes district sites (70Z08326FCLEV0061), from Coast Guard, on September 28, 2026.

On GovTribe

See Appledore Marine Engineering, LLC's full federal record

  • Federal contract awards
  • IDV awards
  • Contract vehicles
  • Subcontracting relationships
  • Funding analysis by agency, NAICS and set-aside
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