How many employees work at Polypore International?

Polypore International, Inc. has 1,184 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -2.5%.

Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025

About Polypore International

As a leading global high technology company specializing in microporous membranes, we bring advanced development and manufacturing know-how and unique problem-solving capabilities to your lithium-ion and lead-acid battery applications through our Celgard and Daramic operations. Our Celgard business is the market leader in lithium-ion membrane battery separators for electric drive vehicles (EDVs) that include cars, buses and bikes. Our Daramic teams are at the heart of product innovation in advancing lead-acid battery systems for idle stop-start vehicles and many other industrial and transportation applications. Lithium-ion and lead-acid batteries also play a critical role in energy storage systems (ESS) for storing and releasing power generated by wind turbines and solar panels. As the world continues to look for advanced power options, there are also many specialty applications that rely on lithium-ion and lead-acid innovation such as aircraft and drone batteries and ultra-capacitors. OUR PEOPLE & WORLDWIDE NETWORK We are proud to employ leading experts and scientists that maximize the synergies and strengths of our Polypore, Celgard, Daramic and Asahi Kasei capabilities around the world. Our products are manufactured, marketed and serviced through 18 manufacturing, sales and service locations throughout the Americas, Europe and Asia. Polypore International is an Asahi Kasei Group Company, led by Asahi Kasei Corporation, which is a diversified group of companies operating in the material, homes and health care business sectors. With more than 30,000 employees around the world, Asahi Kasei serves customers in more than 100 countries.

As of September 2025

Polypore International
workforce metrics

Headcount

1.2k

Avg. Salary

$54.2k

Tenure

6.1yr

Growth Rate

-2.5%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of Polypore International annual worldwide employee count from 2023 to 2025.

  • Polypore International total number of employees in 2025 was 1,177.16, a 2.5% decline from 2024.
  • Polypore International total number of employees in 2024 was 1,181.496, a 3.5% decline from 2023.
  • Polypore International total number of employees in 2023 was 1,224.367, a 1.2% increase from 2022.

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Employee Geographic Breakdown

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Employee Role Breakdown

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Employee Compensation

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Active Job Postings

Interactive chart of Polypore International annual active job postings from 2023 to 2025.

  • Polypore International active job postings in 2025 was 83, a 37.3% decline from 2024.
  • Polypore International active job postings in 2024 was 120, a 7.2% decline from 2023.
  • Polypore International active job postings in 2023 was 129, a 7.2% increase from 2022.

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Employee Sentiment

Sentiment Topics

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