What Nautilus Integrated Solutions does

Nautilus Integrated Solutions, Inc. (NIS) is a privately held U.S. holding company that operates as a vertically integrated precision manufacturer for the U.S. defense and nuclear naval industrial base. Through three wholly-owned subsidiaries — PRL (high-integrity foundry casting in Cornwall, PA), Micro Precision (CNC machining and assembly in South Windham, CT), and Nathan Airchime (acoustic-mechanical and railroad signaling devices) — NIS delivers cast, machined, tested, and assembled components and sub-assemblies for the U.S. Navy's Virginia and Columbia class nuclear submarines and Ford class nuclear aircraft carriers. The group employs approximately 180 people across roughly 119,000 square feet of East Coast manufacturing capacity, and serves as a preferred supplier to General Dynamics Electric Boat, Newport News Shipbuilding, Curtiss-Wright, and Northrop Grumman.

The technical platform spans design and engineering (using MAGMASOFT simulation for casting process design), foundry operations anchored by an 18,500-pound AOD vessel producing castings up to 12,000 pounds, short-run CNC machining (vertical and horizontal milling, turning, multi-axis), upgrading (heat treating, welding, fabrication, grinding), comprehensive NDT/NDE testing (radiographic to 11-inch thickness, magnetic particle, liquid penetrant, ultrasonic, hydrostatic, and visual), and final assembly of mission-critical units such as hydraulic accumulators, weapons handling systems, and retractable bow plane locking assemblies. NIS holds the full set of qualifications required to participate in the nuclear submarine supply chain, including NAVSEA MIL-I-45208, NAVSUP Level 1/SUBSAFE, NNSA NN-801 security program, ITAR Part 122, ASME BPV, ASNT Level III, and AWS welder certifications, with ISO 9001:2015 registered at Micro Precision.

NIS monetizes almost exclusively through hardware sales of these precision components and assemblies under quote-based, contract-by-contract procurement with defense prime contractors and, indirectly, the U.S. government. The go-to-market is enterprise field sales — direct relationships with the four named submarine/naval aviation primes — supplemented by a quote-driven company website and minimal digital marketing. Revenue is concentrated in a single vertical (U.S. Navy nuclear platforms) and a small set of named prime customers, with no disclosed pricing, public revenue figures, or external investors in the source data.

Name

Nautilus Integrated Solutions

Legal name

Nautilus Integrated Solutions, Inc.

Website

https://nautilusintegratedsolutions.com

Company type

Private

Operating status

Operating

Headcount range

251–500 employees

Short description

Nautilus Integrated Solutions is a vertically integrated U.S. precision manufacturer serving the U.S. Navy nuclear submarine and aircraft carrier programs, operating through subsidiaries PRL (foundry), Micro Precision (machining), and Nathan Airchime (acoustic devices).

Ownership category

akta.pro rank

Product category

Defense Manufacturing

NAICS

Ship Building and Repairing (336611), Industrial Machinery Manufacturing (3332)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Submarine Outfitting, Habitability & Auxiliary Systems Manufacturing (IMAJAOAM)

akta.pro secondary industries

Submarine Weapons Launch & Handling Systems Manufacturing (Tubes, VLS, Racks) (IMAJAOAI), Submarine Integration, Testing, Trials & Commissioning Services (IMAJAOAN)

Keywords

• Precision casting services
• CNC machining services
• Defense manufacturing
• Submarine components
• Non-destructive testing

Headquarters

HQ city

South Windham

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Precision Manufacturing Components: Revenue generated from manufacturing and delivering precision machined components, castings, and assemblies to the U.S. Navy and submarine industrial base. Services include foundry, machining, upgrading, NDT/NDE testing, and assembly operations delivered as a single point of contact from design through delivery.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Nautilus Integrated Solutions is a vertically integrated precision manufacturing company that designs, casts, machines, upgrades, tests, and assembles high-integrity mechanical, hydro-mechanical, electro-mechanical, and acoustic-mechanical components for the U.S. submarine industrial base and nuclear Navy programs. Operating through three subsidiaries (PRL for foundry casting, Micro Precision for machining, Nathan Airchime for acoustic devices), the company delivers ready-to-install assemblies for Virginia, Columbia, and Ford class naval platforms from its East Coast facilities.

Product overview

Nautilus Integrated Solutions (NIS) operates as a vertically integrated manufacturing enterprise providing precision components to the U.S. submarine industrial base and nuclear Navy programs. The company offers a unified manufacturing platform spanning Design & Engineering (with MAGMASOFT® simulation), Foundry/Casting, Machining, Upgrading (heat treating, welding, fabrication, grinding), NDT/NDE Testing & Inspection, and Assembly & Inspection services. NIS serves as the parent company of three subsidiaries: PRL (specializing in high-integrity castings for military and nuclear applications), Micro Precision (providing precision CNC machining and Navy-approved manufacturing), and Nathan Airchime (manufacturing railroad air horns and acoustic-mechanical devices). The integrated portfolio enables NIS to deliver components from conception through inspection, serving Virginia, Columbia, and Ford class submarine and aircraft carrier programs.

Differentiator

Problem solved

Functional benefit

Products and services

• Design & Engineering Engineering design services using MAGMASOFT simulation to provide robust and cost-effective plans for component design and production for defense and nuclear applications.
• Foundry (Casting) High-integrity foundry casting services producing castings up to 12,000 pounds with an AOD vessel of 18,500-pound capacity, serving military, nuclear, and commercial sectors through the PRL subsidiary.
• Machining Short-run precision machining with manual and CNC capabilities including vertical and horizontal CNC milling and turning, specializing in tight tolerance complex geometries for defense and submarine industrial base applications.
• Upgrading Upgrading services including heat treating, welding and fabrication, grinding, and inspection performed to rigorous military and nuclear standards for prime contractors.
• NDT/NDE Testing and Inspection Non-destructive testing and evaluation services including radiographic inspection up to 11-inch thickness, magnetic particle, liquid penetrant, ultrasonic, hydrostatic pressure, and visual inspection performed by ASNT Level III certified personnel.
• Assembly and Inspection Complex assembly services delivering ready-to-install products including hydraulic accumulators, HEI linkage assemblies, weapons handling assemblies, rammer panel assemblies, retractable bow plane locking assemblies, and mounts and hangers for submarine and naval vessel applications.

Quantifiable outcome

• Over 50 years supplying nuclear submarine industrial base
• +2 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Three partnerships are on record, tiered core and minor.

• PRL (PRL, Inc.)coreStrategic or Co-development PartnerPRL has been supplying high-integrity castings for over 50 years with specialized craftsmen providing finished components conforming to strictest military, nuclear, and commercial requirements. PRL has achieved numerous ASME and U.S. Military certifications and operates a dedicated foundry as part of Nautilus Integrated Solutions' vertically integrated operations.
• Micro PrecisioncoreStrategic or Co-development PartnerMicro Precision provides broad range of mechanical, hydro-mechanical and electro-mechanical components to exacting standards with comprehensive MRP system for timely delivery. ISO 9001:2015 registered, Navy Nuclear approved, and serves as prime contractor supplying critical parts to U.S. Military and submarine prime contractors.
• Nathan AirchimeminorStrategic or Co-development PartnerNathan Airchime is the world's leading producer of railroad locomotive air horns and associated devices, engaged in design, manufacture, distribution, and aftermarket servicing of proprietary products globally. Product line includes acoustic-mechanical alternatives for U.S. Military applications.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Emerging players

• Solar Atmospheres: Provider of vacuum heat treating and NDT-adjacent services with a strong defense and aerospace customer base. Comparable to Nautilus's upgrading/NDT segment and a potential regional peer in heat-treat capacity.

Direct peers

• Ellwood Group: Specialty steel and iron foundry group serving defense, marine, and nuclear customers. Directly comparable on the high-integrity casting side of Nautilus's PRL business.
• Curtiss-Wright Corporation: Major defense prime and a Nautilus customer. Provides highly engineered mechanical, naval, and nuclear components to submarine and aircraft-carrier programs — overlapping on the same platform set.
• MetalTek International: Specialty investment-casting and sand-casting manufacturer for defense, naval, and nuclear applications. Closest mid-market analog to PRL's high-integrity casting capabilities.
• BWX Technologies (BWXT): Largest U.S. supplier of nuclear components and fuel for naval reactors. Directly comparable as a NAVSEA/NNSA-qualified precision manufacturer serving the same U.S. submarine industrial base with mission-critical parts.

Broad incumbents

• Northrop Grumman: Submarine prime contractor and a Nautilus customer. Comparable as a major defense platform integrator that also participates in the supplier base for naval nuclear programs.
• Kaman Aerospace: Aerospace and defense precision components manufacturer. Relevant given the CFO's 24-year tenure at Kaman; comparable as a mid-size precision manufacturer serving defense primes.
• General Dynamics Electric Boat: Prime contractor for Virginia and Columbia-class submarines and a Nautilus customer. While a customer rather than direct competitor, its growing vertical integration into the supplier base makes it the most relevant strategic comparable.
• Huntington Ingalls Industries / Newport News Shipbuilding: Sole builder of U.S. aircraft carriers and co-builder of Virginia/Columbia-class submarines. As a Nautilus customer and increasingly vertically integrated supplier, it shapes the same industrial-base economics.
• Marmon Aerospace & Defense Group: Berkshire Hathaway-owned aerospace and defense components group where CEO Tim Grass previously served. Directly comparable as a precision connector/components supplier with a Navy-heavy book of business.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/nautilusis

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nautilus Integrated Solutions