NPK International Inc.
NPK International Inc. (NYSE: NPK) operates as a temporary worksite access solutions company providing recyclable composite matting products and comprehensive services including planning, logistics, and site restoration. The company's website is located at www.npki.com. From the company’s description.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What NPK International Inc. does
In the company’s own words
NPK International Inc. (NYSE: NPK) operates as a temporary worksite access solutions company providing recyclable composite matting products and comprehensive services including planning, logistics, and site restoration. The company's website is located at www.npki.com.
The company generates revenue through two primary business streams: rental of recyclable composite matting systems with related site construction and services, which accounted for 66 percent of 2025 revenues, and sales of manufactured recyclable composite mats, representing 34 percent of revenues. NPK serves customers across multiple industries including power transmission, oil and natural gas exploration and production, pipeline, renewable energy, petrochemical, and construction sectors. The power transmission sector represents approximately 60 percent of rental and service revenues, with the company expecting growth in this sector driven by increasing energy demand and grid reliability initiatives.
NPK manufactures its proprietary DURA-BASE recyclable composite matting systems and related components including connecting pins and the EPZ Grounding System. The company holds patents related to the design and manufacturing of these products. The company generated 93 percent of revenues domestically during 2025, with operations in the United States and United Kingdom. In November 2025, NPK completed the acquisition of Grassform Plant Hire Limited, a U.K. market leader in ground protection and temporary roadway solutions.
As of December 31, 2025, NPK employed approximately 510 full and part-time personnel, including 410 in the United States and 100 in the United Kingdom. The company maintains rental fleet assets valued at $163.8 million net of accumulated depreciation, with $138.9 million in the United States and $24.9 million in the United Kingdom. The company's manufacturing facility is located in Carencro, Louisiana.
During 2025, approximately 74 percent of revenues derived from the company's 20 largest customers, with the three largest customers representing 19 percent, 15 percent, and 10 percent of revenues respectively. NPK competes in a fragmented rental and services market against larger competitors including United Rentals, while facing fewer competitors in composite mat sales, primarily Signature Systems and Spartan Mat.
Company details
- Sector
- Technology
- Industry
- Business Services & Software
- Headquarters
- THE WOODLANDS, TX
- Fiscal year end
- December
- CIK
- 71829
- SIC
- 7350
Financial performance, year by year
Fiscal 2013–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns NPK International Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · NPK International Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
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