Delphinus Engineering LLC

Delphinus Engineering, Inc., a minority-owned small disadvantaged business based in Newtown Square, Pennsylvania, delivers naval systems engineering, ship repair, maintenance, and fleet modernization services to the U.S. Navy as a prime contractor on 93% of its federal awards, with $15.01 billion in combined potential value across 1,600 awards since 1997. The company is a Subcontinent Asian American-owned Subchapter S Corporation that competes predominantly in full-and-open procurements, with Total Small Business set-asides recurring across roughly one-third of its prime portfolio.

Delphinus Engineering operates as a specialized naval contractor with concrete capability anchoring to hull, mechanical, and electrical (HM&E) systems engineering; alteration installation team (AIT) services for shipboard habitability restoration; touch labor production support; and technical services for surface ships, submarines, and aircraft carriers. Recent representative prime work includes a $36.98 million cost-plus-incentive definitive contract awarded December 1, 2025, for design, development, and first article testing of the Victoria Class Bow Array Unit #1 for submarine sonar systems; a $35.2 million delivery order issued February 26, 2026, for monitoring alterations across USS Truxton, USS Sampson, USS Donald Cook, and USS Gridley under the Engineering and Support Services for Hull, Mechanical and Electrical Systems IDIQ; a $19.1 million delivery order awarded July 19, 2024, for condition-based maintenance contractor support for cybersecure machinery control systems; and a $9.89 million delivery order issued June 5, 2025, for shipboard habitability improvement engineering and logistics services under the Shipboard Habitability Ship Systems Alteration Development and Installation IDIQ. The company also executes small-dollar component procurement work through Naval Supply Systems Command purchase orders, including ball valves and electrical hull fittings.

Customer concentration is extreme: Naval Sea Systems Command (NAVSEA) anchors 1,214 awards valued at $14.45 billion, representing 99% of combined potential value and 89% of all awards. The secondary customer tier—Military Sealift Command ($277.4 million), Naval Supply Systems Command ($86.8 million), and Pacific Fleet Forces ($33.7 million)—together represent less than 2% of the footprint. This concentration reflects Delphinus Engineering's strategic positioning as NAVSEA's primary small business contractor for ship maintenance and engineering services across the naval enterprise.

Delphinus Engineering holds a substantial portfolio of parent IDIQs, with 181 task orders under one Indefinite Delivery Contract N0025307D0014, 78 under N6554013D0006 ($241.8 million), and 65 under N6554015D0004 ($177.7 million). Named vehicles include the $1.676 billion Littoral Combat Ships Class Sustainment Execution Contract—West Coast Part III (multiple award, competitive), the $1.908 billion CNO Availabilities for Fast Attack Submarines IDIQ (multiple award, September 2025), the $496.1 million Engineering and Support Services for Hull, Mechanical and Electrical Systems IDIQ, the $300 million Maintenance, Repair, and Modernization of Non-Nuclear Surface Ships Homeported in Pearl Harbor IDIQ (partial small business set-aside), the $242.9 million Touch Labor Production Support for Portsmouth Naval Shipyard IDIQ, the $226.2 million Surface Vessel Maintenance Multiple Award Contract (SURFMAC) for Hawaii repair services, the $114 million Production Support MAC IDIQ at Norfolk Naval Shipyard (March 2026), and the $88.1 million Navy Submarine Preservation and Repair IDIQ (April 2025). These vehicles position Delphinus Engineering to compete for task orders across fleet maintenance, submarine preservation, carrier operations, and shipyard production support nationwide.

Activity has grown from 57 awards annually in 2022–2023 to 114 in 2025, with 20 awards recorded in 2026 through May. Over the next twenty-four months, 38 awards with combined potential value of $183.1 million reach ultimate completion, signaling significant recompete exposure across habitability, engineering services, and touch labor contracts.

On the subcontractor side, Delphinus Engineering operates as a sub to major primes on carrier refueling and complex overhaul (RCOH) work. Named prime relationships include HII Fleet Support Group LLC (Carrier Engineering Maintenance Assist Team support for USS John C. Stennis CVN-74 RCOH; elevator support unit operations; C4I hardware installation on submarines USS New Hampshire and USS Illinois), Huntington Ingalls Incorporated (LPD and destroyer class ship alteration work; DDG 51 construction support), Vigor Marine LLC (USS Gabrielle Giffords LCS-10 dry-dock selected restricted availability; USS Kidd DDG-100 depot modernization; piping and fiber-optic work), BAE Systems Technology Solutions & Services Inc. (labor and material funding for technical refresh; machinery control systems support), Serco Inc. (CVN-74 RCOH task 3 services; C4ISR hardware installation), and Leidos Inc. (undersea warfare combat systems product support). Delphinus subcontracts to a tiered ecosystem of smaller maritime vendors—Aerotek Affiliated Services (temporary skilled labor), Spec-Built Systems and Advanced Structures (shipboard furniture and panels), and specialized service providers (coatings, welding, crane operations, scaffolding). Across SCI-reportable prime contracts, no sub-hours share figure is captured; the SCI dataset shows 124 FTEs delivered to federal government work in FY2024, with minimal invoiced revenue recorded ($0 across FY2022–FY2024 in the SCI reporting window), indicating that the majority of Delphinus Engineering's federal revenue flows through fixed-price delivery orders and cost-plus-fixed-fee task orders rather than cost-reimbursable service contracts above the $150,000 SCI threshold.

Delphinus Engineering's footprint is narrowly specialized in naval ship and submarine maintenance. The top three NAICS categories are Ship Building and Repairing (969 awards), Engineering Services (214 awards), and All Other Professional, Scientific, and Technical Services (182 awards). Primary PSC codes track to Non-Nuclear Ship Repair (West and East coasts: 471 combined awards), Support—Professional Engineering/Technical (413 awards), and Technical Representative—Miscellaneous (183 awards). The company operates from Newtown Square, Pennsylvania, with work locations spanning East Coast naval shipyards (Portsmouth, Norfolk, Charleston), West Coast facilities (Bremerton, San Diego, Chula Vista), Huntington Ingalls' Newport News, and overseas sites including Yokosuka, Japan. Place of performance across awards reflects the dispersed naval fleet maintenance footprint—surface combatants homeported on both coasts, submarine bases at Groton and Bremerton, and carrier operations supporting Pacific and Atlantic Fleet Forces.

Delphinus Engineering, Inc. is an engineering firm providing a wide range of cost effective, quality services in the areas of marine engineering, ship reparing, information technology, facilities management and environmental engineering.