ZS
ZS is a global management consulting and technology firm based in Evanston, Illinois, founded in 1983. With over 13,000 employees across more than 35 offices worldwide, ZS specializes in combining data, science, technology, and human ingenuity to create impactful business solutions. The firm focuses on improving life and how people live it, partnering closely with clients to address their core challenges. ZS offers a wide range of services, including management consulting, technology development, and advanced analytics solutions. Their expertise spans various industries, with a strong emphasis on life sciences, including pharmaceuticals and biotechnology. The company also serves clients in financial services, high-tech, telecommunications, and more. ZS is committed to delivering effective solutions while upholding high ethical standards and fostering a supportive corporate culture.
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Headcount trend
ZS went from 10,456 employees in Jul 2023 to 12,825 in Jun 2025. Jan to Jun 2025: 1,643 people joined, 549 left.
Headcount data through Jun 2025
Org structure
Headcount by department
Salaries at ZS
All salaries216 salary profiles in the US
Most reported roles
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 167 filings.
Peer reviews
Worked with someone at ZS?
Anonymous peer reviews on OffTheRecord
Similar companies
ZS FAQ
How many employees does ZS have?
ZS has about 12,825 employees, up 2% over the 3 months to Jun 2025.
Does ZS sponsor H1B visas?
Yes. ZS filed 167 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.
What is ZS's revenue per employee?
ZS makes about $198K in revenue per employee, based on $2.54B annual revenue and 12,825 employees.
How much does ZS pay?
6figr has 514 salary profiles for ZS in India and 216 in the US, with pay broken down by role, level and gender on the ZS salaries page. See ZS salaries in India
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.