Spirent Communications

Spirent Communications plc is a British multinational company based in Crawley, West Sussex, specializing in automated test and assurance solutions for communications networks, cybersecurity, and positioning technologies. Founded in 1936, the company has evolved significantly and was renamed Spirent Communications plc in 2006 to reflect its focus on communications testing and service assurance. It is publicly listed on the London Stock Exchange and is part of the FTSE 250 Index. Spirent offers a wide range of products and services, including network equipment testing, cybersecurity testing, and solutions for Ethernet and IP services. The company also provides support for virtualization and cloud testing, mobile network testing, and positioning technologies. Its clientele spans various sectors, including communications service providers, government agencies, enterprises, and the automotive industry. Spirent is committed to customer-centricity, innovation, and operational excellence, ensuring that it meets the evolving needs of its global customers.

Telecommunications San Jose, United States Founded 1936 ~1,071 employees

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Employees
1,071
+0.6% in the 3 months to Jun 2025
Revenue / employee
$430K
Revenue ~$460M
12-month attrition
6%
Tech: 4.9%
H1B filings, FY2026
4
Sponsors visas

Headcount trend

Spirent Communications went from 1,091 employees in Jul 2023 to 1,071 in Jun 2025. Jan to Jun 2025: 19 people joined, 13 left.

Headcount data through Jun 2025

Org structure

Headcount by department

Engineering447
Other265
Sales136
Operations74
Success48
Marketing44
Product21
Finance19

Salaries at Spirent Communications

All salaries

60 salary profiles in the US

Most reported roles

Pay by level, gender and ethnicity ยท India salaries

H-1B sponsorship

H-1B Sponsorship Limited
H-1B Filings by Department
Engineering54
Operations16
Sales15
Consulting2
IT1

The department split adds up all the years listed above. FY2026 alone: 4 filings.

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Spirent Communications FAQ

How many employees does Spirent Communications have?

Spirent Communications has about 1,071 employees, up 0.6% over the 3 months to Jun 2025.

Does Spirent Communications sponsor H1B visas?

Yes. Spirent Communications filed 4 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.

What is Spirent Communications's revenue per employee?

Spirent Communications makes about $430K in revenue per employee, based on $460.2M annual revenue and 1,071 employees.

How much does Spirent Communications pay?

6figr has 60 salary profiles for Spirent Communications in the US and 10 in India, with pay broken down by role, level, gender and ethnicity on the Spirent Communications salaries page. See Spirent Communications salaries in the US

Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.