The Park Company Llc

What The Park Company Llc does

The Park Company LLC, doing business as Park Nuclear, is a privately-held specialist supplier, service provider, and reverse-engineering firm for the commercial nuclear power industry, founded in 1989 and headquartered at a 125,000 sq ft facility in Pasco, Washington. The company's core asset is the largest nuclear power plant parts inventory in North America — more than 350,000 mechanical, electrical, and instrumentation-and-controls (I&C) components — focused on obsolete and hard-to-find parts for aging US reactors. Beyond the catalog, Park Nuclear operates an SPARES program (pre-tested parts aligned with INPO IER 21-4), a reverse-engineering and drop-in-replacement service that recreates components from OEMs that have been out of business for decades, an item-equivalency analysis service, repair and testing, and strategic sourcing from global supplier networks.

Through a March 2025 acquisition from MicroMod Automation, the company now owns the 53MC5000 multiloop process controller product line — including intellectual property, manufacturing rights, and support services — with installed bases in CANDU, PWR, and BWR facilities across the Americas, Europe, and Asia. A second 45,000 sq ft Engineering & Qualification Center in Oak Ridge, Tennessee, scheduled for Q4 2025 launch, will deliver NQA-1 compliant quality assurance, Commercial Grade Dedication, and Seismic and Material Testing under 10 CFR 50 Appendix B.

Park Nuclear makes money through a mix of one-time transactional parts sales (large catalogs of individual or bulk obsolete components), professional services (repair, testing, strategic sourcing, reverse engineering, item equivalency, inventory reduction), and hardware revenue from the 53MC5000 product line. Pricing is quote-based and not publicly disclosed, reflecting the highly variable nature of nuclear-grade part specifications and qualification requirements. Go-to-market is exclusively direct: a field-sales organization that conducts on-site visits to nuclear utility buyers (engineering, supply chain, maintenance, executive teams) across multiple states, supplemented by a heavy presence at industry events (RAPID, NUPIC, NBIC, NECX, USA Winter Conference, AUG/MUG, ETEBA BOTC, WM Symposia, MOV/AOV). Named enterprise customers span Xcel Energy, PG&E Diablo Canyon, Constellation Nuclear, American Electric Power, Vistra Energy, Exelon Generation, Entergy, and the broader US nuclear fleet. The company has received the Utilities Service Alliance Materials Supplier of the Year award for two consecutive years (2025 and 2026).

Name

The Park Company Llc

Legal name

Park Nuclear

Website

https://parknuclear.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

The Park Company LLC (Park Nuclear) supplies obsolete and hard-to-find nuclear power plant parts, reverse engineering, repair, and NQA-1 compliant testing services to US nuclear utilities and operators from facilities in Pasco, WA and Oak Ridge, TN.

Ownership category

akta.pro rank

Product category

Nuclear Power Plant Parts Supply

NAICS

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance (81131)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590)

akta.pro primary industry

Supply Chain, Spares & Obsolescence Management (Qualified Parts, Vendor Oversight) (EUAKABAJ)

akta.pro secondary industries

Maintenance & Reliability Engineering (Preventive/Predictive, RCM, Asset Mgmt) (EUAKABAB), Component & System Upgrades / Modernization (I&C Digital, Turbine-Generator, Balance-of-Plant) (EUAKABAE), Asset Integrity, Inspection & Condition-Based Maintenance (CBM/PdM) (EUAEAGAL)

Keywords

• Nuclear parts supply
• Obsolete nuclear components
• Commercial grade dedication
• Nuclear plant maintenance
• Reverse engineering parts

Headquarters

HQ city

Oak Ridge

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Nuclear Parts Sales: Sale of hard-to-find and obsolete nuclear power plant components including mechanical parts, electrical parts, I&C components, power supplies, filters, and process controllers. Revenue is generated through one-time transactional sales of individual parts or bulk inventory orders to nuclear utilities.
2. Repair and Testing Services: Industry expert repair and testing services for nuclear power plant components, including transparent communication and honest lead times for turnaround on repaired or tested parts.
3. Strategic Sourcing: Helping nuclear facilities locate parts that are hard to find, sourcing from global supplier networks and leveraging the company's extensive industry relationships and inventory capabilities.
4. Reverse Engineering and Drop-In Replacements: Engineering and manufacturing of custom drop-in replacement parts for obsolete components, including reverse engineering of parts from OEMs that are no longer in business. Saves customers from mid-six-figure valve replacements and costly design changes.
5. Item Equivalency: Identifying and supplying equivalent alternative parts to those originally specified, enabling plants to continue operations without expensive redesigns.
6. 53MC5000 Process Controller Product Line: Acquisition of the 53MC5000 process controller product line from MicroMod Automation, including intellectual property, manufacturing rights, and support services. Revenue from sales of this product line and related support services to nuclear facilities globally.
7. Commercial Grade Dedication & Testing Services: Services offered at the Oak Ridge facility including Commercial Grade Dedication, Seismic Testing, and Material Testing under the NQA-1 program for nuclear safety-related applications.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

The Park Company LLC (dba Park Nuclear) supplies obsolete, foreign, and hard-to-find replacement parts for nuclear power plants from a multi-million-dollar inventory held at facilities in Pasco, WA and Oak Ridge, TN. In addition to direct parts sales across mechanical, electrical, and instrumentation & controls categories, the company provides Repair & Testing Services, Strategic Sourcing, Reverse Engineering / Drop-In Replacements, Item Equivalency evaluations, Inventory Reduction, Commercial Grade Dedication, Seismic & Material Testing, and its SPARES program for nuclear utilities.

Product overview

Park Nuclear is a nuclear power industry parts supplier and solutions provider operating a platform-plus-services model. The company's core offering centers on its massive 125,000 sq ft warehouse inventory of over 350,000 parts, including mechanical, electrical, and instrumentation & controls (I&C) replacement components. Key product lines include the acquired 53MC5000 Process Controller, Foxboro SPEC 200 System, Fischer & Porter Power Supplies, Panalarm equipment, and various filter and valve products. The company complements its parts inventory with value-added services including Repair & Testing, Strategic Sourcing, Reverse Engineering for drop-in replacements, Item Equivalency analysis, and the SPARES (Sustainable Parts and Reliable Equipment Solutions) program. A new Oak Ridge, Tennessee facility expanding into Commercial Grade Dedication, Seismic & Material Testing, and NQA-1 compliant Quality Assurance services further extends their capabilities. The company is headquartered in Pasco, Washington with an additional location in Oak Ridge, Tennessee, and has over 35 years of industry experience.

Differentiator

Problem solved

Functional benefit

Brands

• SPARES (Sustainable Parts and Reliable Equipment Solutions): Program designed to support nuclear facilities with high-quality, pre-tested parts to improve reliability and minimize downtime.

Quantifiable outcome

• Delivered a drop-in replacement for an obsolete seal cartridge (OEM out of business for 20+ years) in just three weeks, saving the customer from a mid-six-figure valve replacement and design change.
• +1 more outcomes

Named customers9 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• VSP TechnologiescoreGTM or Marketing Partner · 21 January 2026Park Nuclear and VSP Technologies have an ongoing partnership, meeting regularly at industry events. VSP Technologies provides engineered fluid sealing products. They co-exhibited at the ETEBA BOTC 2025 conference and collaborated on events at the RAPID 2026 Conference (hosting the Beach Bash and Final Connections Social). The partnership enables combined offerings of Park Nuclear's parts inventory with VSP's fluid sealing solutions.
• American Nuclear Society (ANS) and Nuclear Energy Institute (NEI)minorGTM or Marketing Partner · 8 October 2025ANS and NEI co-hosted the inaugural Nuclear Energy Conference & Expo (NECX) in Atlanta. Park Nuclear attended NECX 2025 and is planning to attend NECX 2026 in Dallas, TX (August 24-27).
• Vistra EnergyminorOthers · 18 September 2025Vistra Energy hosted the Utilities Service Alliance Supplier Fair at their Beaver Valley Nuclear Plant in Shippingport, PA. Park Nuclear attended to connect with Vistra's engineering, supply chain, maintenance, and executive teams.
• ConstellationminorOthers · 21 July 2025Park Nuclear visited Constellation Nuclear's Nine Mile Point and Fitzpatrick Clean Energy Centers to showcase their portfolio of innovative solutions. Both are key nuclear facilities that Park Nuclear supports.
• Millspaw ElectronicsminorGTM or Marketing Partner · 18 May 2025Co-hosted the Final Connections Networking Event with Park Nuclear during the 33rd Annual RAPID Conference in Clearwater Beach, FL, featuring food, cocktails, cigar bar, and espresso bar. Millspaw Electronics and Park Nuclear collaborated on industry networking activities.
• T&T EnterprisesminorGTM or Marketing Partner · 18 May 2025Co-hosted the Final Connections Networking Event with Park Nuclear during the 33rd Annual RAPID Conference in Clearwater Beach, FL. T&T Enterprises (Thalasinos Enterprises Inc. dba T&T Enterprises) partnered with Park Nuclear on this industry networking event.
• NuclearnminorGTM or Marketing Partner · 18 May 2025Co-hosted the Top Golf Networking Event with Park Nuclear during the 33rd Annual RAPID Conference. Nuclearn is a nuclear industry networking platform and also hosted the inaugural Nuclear Business Intelligence Conference (NBIC).
• MicroMod AutomationcoreOEM/ Whitelabel/ Licensing Partner · 5 March 2025Park Nuclear acquired the 53MC5000 controller line intellectual property, manufacturing rights, and support services from MicroMod Automation. This strategic acquisition expands Park Nuclear's product portfolio, with installations in CANDU, PWR, and BWR facilities globally, and reinforces their leadership in nuclear power solutions.
• Xcel EnergyminorOthers · 9 October 2024Park Nuclear conducted on-site visits to Xcel Energy's Monticello and Prairie Island nuclear sites to discuss cost-effective obsolescence solutions and ensure continued support for reliable facility operations.
• American Electric PowerminorOthers · 9 September 2024American Electric Power hosted the Utilities Service Alliance Supplier Fair at their DC Cook Nuclear Plant. Park Nuclear participated to connect and showcase commitment to excellence in serving the nuclear power industry.
• Utilities Service Alliance, Inc. (USA INC)coreGTM or Marketing Partner · 15 July 2024Utilities Service Alliance is a nuclear utility consortium that organizes supplier fairs, executive summits, and conferences for its member utilities. Park Nuclear actively participates in USA INC events including the Executive Summit in Naples, FL (Booth 211), supplier fairs at AEP's DC Cook Nuclear Plant, and Vistra Energy's Beaver Valley Nuclear Plant, as well as the USA Winter Conference. This is a key channel for connecting with multiple nuclear utility decision-makers simultaneously.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Framatome: Global nuclear OEM and services provider (EDF subsidiary) with installed base across US PWR and BWR fleets. Competes at the OEM-equipment and large modification level that drives Park Nuclear's parts opportunities.
• Mirion Technologies: Public nuclear and radiation-detection company providing measurement, safety, and related services to nuclear utilities. Comparable as a specialized supplier to the US nuclear fleet with overlapping end customers.
• Westinghouse Electric Company: Major nuclear OEM and services company supplying fuel, services, and replacement components to US nuclear operators. Represents both a customer source and competitive threat for obsolete-parts opportunities.
• Curtiss-Wright (Defense & Nuclear segments): Diversified industrial supplier with a sizable nuclear parts and services business supplying reactor components, controls, and qualification services. Broader portfolio but directly competes in nuclear parts and reverse-engineering.
• Bartlett Nuclear (BWX Technologies): BWXT subsidiary providing nuclear plant services, parts, and decommissioning support across the US commercial and government fleet. Larger, publicly-listed incumbent operating in adjacent nuclear services and parts.

Direct peers

• Energy Steel & Supply Co. Long-standing nuclear-qualified parts distributor serving US utilities with ASME Code and obsolete safety-related components. Directly overlaps Park Nuclear on obsolete part sourcing for commercial nuclear plants.
• Holtec International: Privately-held nuclear equipment and services company supplying spent fuel storage, heat exchangers, and parts to the US nuclear fleet. Comparable in serving nuclear plant obsolescence and life-extension needs with proprietary equipment.
• Structural Integrity Associates: Nuclear engineering and qualification-services firm providing Commercial Grade Dedication, seismic and material testing, and fitness-for-service assessments. Directly comparable to the Oak Ridge NQA-1 testing capabilities Park Nuclear is launching.

Emerging players

• Sargent & Lundy: Engineering services firm specializing in nuclear plant design, modification, and licensing support. Overlaps with Park Nuclear's reverse-engineering and item-equivalency work where engineering redesigns accompany part replacement.

Others

• VSP Technologies: Engineered fluid sealing product supplier and active Park Nuclear co-marketing partner at nuclear industry conferences. Adjacent (enabling) supplier rather than direct competitor, with potential channel/partner overlap.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@ParkNuclear
• LinkedInlinkedin.com/company/park-nuclear

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 The Park Company Llc