> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/company/serco/ # Serco A information technology and services organization with 50,000 to 100,000 employees. Where it sits among its peers, the technology it runs and how to reach its people. By Enrich.chat Editorial. Updated October 21, 2026. **Short answer:** Serco (serco.com) is an information technology and services organization with 50,000 to 100,000 employees. Its public technology footprint includes Microsoft Outlook, Atlassian Cloud, Zendesk and SAP SuccessFactors. ## How big is Serco? Serco has 50,000 to 100,000 employees. Among the software and technology services companies on this site it sits among the largest. Each dot in the figure is one of its peers, placed by size; the orange dot is Serco. **Figure: Where Serco sits among software and technology services companies.** A strip of dots, one for each of 120 peers in information technology and services, spread from 2,000 to 2,000,000 employees on a log scale. Serco is highlighted and falls in the 50,000 to 100,000 employees range among the largest. *Peers in information technology and services placed by employee count on a log scale. Sizes are rounded ranges from public profiles.* Headcount on public company profiles is rounded and moves as a company hires, so use the range as a guide, not as a payroll figure. ## Where is Serco headquartered? Serco is headquartered in Hook, United Kingdom. [More software and technology services companies in the United Kingdom](https://enrich.chat/companies-in/united-kingdom/information-technology-and-services/)[Companies in the United Kingdom](https://enrich.chat/companies-in/united-kingdom/) ## What industry is Serco in? Serco works in [information technology and services](https://enrich.chat/industries/information-technology-and-services/). This group covers software developers, IT consultancies, managed service providers and other firms that build, run and support technology systems. Closest matches on this site: [NEC](https://enrich.chat/company/nec/), [Airbnb](https://enrich.chat/company/airbnb/), [Amdocs](https://enrich.chat/company/amdocs/), [FIS](https://enrich.chat/company/fis/), [IGATE](https://enrich.chat/company/igate/) and [Coupang](https://enrich.chat/company/coupang/). ## What technology does Serco use? We detect 9 tools on Serco's public footprint across 7 categories, for example Zendesk for customer support and chat, SAP SuccessFactors for hr and recruiting and Atlassian Cloud for developer and devops tools. The figure counts the tools in each category; the groups below name them and link to the companies that use each one. **Figure: Tools detected at Serco, by category.** A bar chart of how many tools were detected at Serco in each category: CDN and security 2, Customer support and chat 1, HR and recruiting 1, Developer and DevOps tools 1, Email and productivity 1, Frameworks and libraries 1. *Tools detected on the public footprint of Serco, by category.* ### Customer support and chat [Zendesk](https://enrich.chat/companies-using/zendesk/) ### HR and recruiting [SAP SuccessFactors](https://enrich.chat/companies-using/successfactors/) ### Developer and DevOps tools [Atlassian Cloud](https://enrich.chat/companies-using/atlassian/) ### Email and productivity [Microsoft Outlook](https://enrich.chat/companies-using/microsoft-outlook/) ### CDN and security [Cloudflare](https://enrich.chat/companies-using/cloudflare/)[Cloudflare CDN](https://enrich.chat/companies-using/cloudflare-cdn/) ### Frameworks and libraries [Vue.js](https://enrich.chat/companies-using/vue-js/) Tools change as companies adopt and drop them. Check a single company at any time with the free [tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/). ## Which companies are most like Serco? These are the closest matches among the software and technology services companies on this site. Each is compared on the business tools it runs (a rarer tool says more than a common one), how close its size is and, when both are known, where it is based. The second column says why it matched and gives its size range. | Company | Why it matches | | --- | --- | | [NEC](https://enrich.chat/company/nec/) | Shares Zendesk, SAP SuccessFactors and Atlassian Cloud; a larger company. 100,000+ employees | | [Airbnb](https://enrich.chat/company/airbnb/) | Shares Zendesk and Atlassian Cloud; a smaller company. 25,000 to 50,000 employees | | [Amdocs](https://enrich.chat/company/amdocs/) | Shares Zendesk, SAP SuccessFactors and Atlassian Cloud; a smaller company. 25,000 to 50,000 employees | | [FIS](https://enrich.chat/company/fis/) | Shares Zendesk and Atlassian Cloud; same size range. 50,000 to 100,000 employees | | [IGATE](https://enrich.chat/company/igate/) | Shares Zendesk and Atlassian Cloud; a larger company. 100,000+ employees | | [Coupang](https://enrich.chat/company/coupang/) | Shares Zendesk and Atlassian Cloud; same size range. 50,000 to 100,000 employees | | [Ntt Data](https://enrich.chat/company/ntt-data/) | Shares Zendesk, SAP SuccessFactors and Atlassian Cloud; a smaller company. 25,000 to 50,000 employees | | [Sutherland Global Services](https://enrich.chat/company/sutherland-global-services/) | Shares Zendesk and Atlassian Cloud; same size range. 50,000 to 100,000 employees | To build a longer list of accounts like Serco, with the people who run their software, ask your AI agent: ```text Use www.enrich.chat to find software and technology services companies that run Zendesk and Atlassian Cloud, like Serco, and the CTOs, CIOs and heads of engineering at each, with titles and verified work emails ``` ## How do I find the right people at Serco? Start from the website, serco.com. Enter it in the free email finder with a name, or ask your AI agent for the people in the roles you sell to, such as CTOs, CIOs and heads of engineering. ```text Use www.enrich.chat to find the CTOs, CIOs and heads of engineering at serco.com, with titles and verified work emails ``` Staff addresses follow a known pattern: see the [Serco email format](https://enrich.chat/email-format/serco/). ## Which other companies use the same tools? See who else runs the tools Serco uses: [Microsoft Outlook](https://enrich.chat/companies-using/microsoft-outlook/)[Cloudflare](https://enrich.chat/companies-using/cloudflare/)[Atlassian Cloud](https://enrich.chat/companies-using/atlassian/)[Vue.js](https://enrich.chat/companies-using/vue-js/)[Zendesk](https://enrich.chat/companies-using/zendesk/)[SAP SuccessFactors](https://enrich.chat/companies-using/successfactors/) ## Frequently asked questions ### How many employees does Serco have? Serco is in the 50,000 to 100,000 employees range on its public company profile. Headcounts are rounded and change as companies hire, so treat the range as a guide. ### What industry is Serco in? Serco works in information technology and services. This group covers software developers, IT consultancies, managed service providers and other firms that build, run and support technology systems. ### What technology does Serco use? Tools detected on its public footprint include Microsoft Outlook, Atlassian Cloud, Zendesk and SAP SuccessFactors, across 7 categories. A detected tool shows it was seen, not what Serco pays for it. ### Where is Serco headquartered? Serco is headquartered in Hook, United Kingdom. ### What companies are similar to Serco? The closest matches on this site are NEC, Airbnb and Amdocs. They are compared on the business tools they run, their size and where they are based; the profile above lists the reasons. ### What is the website of Serco? Serco's website is serco.com. Staff email usually uses a domain like it, so check the pattern with the free email format finder before you write to anyone. ## Try this prompt Find people at Serco ```text Use www.enrich.chat to find the CTOs, CIOs and heads of engineering at serco.com, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NEC](https://enrich.chat/company/nec/) - [Airbnb](https://enrich.chat/company/airbnb/) - [Amdocs](https://enrich.chat/company/amdocs/) - [FIS](https://enrich.chat/company/fis/) - [IGATE](https://enrich.chat/company/igate/) - [Coupang](https://enrich.chat/company/coupang/) - [Ntt Data](https://enrich.chat/company/ntt-data/) - [Sutherland Global Services](https://enrich.chat/company/sutherland-global-services/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)