> 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/besix/ # BESIX A construction organization with 10,000 to 25,000 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:** BESIX (besix.com) is a construction organization with 10,000 to 25,000 employees. Its public technology footprint includes Microsoft 365, Microsoft Outlook, Facebook Login and Salesforce. ## How big is BESIX? BESIX has 10,000 to 25,000 employees. Among the construction firms on this site it sits in the larger half. Each dot in the figure is one of its peers, placed by size; the orange dot is BESIX. **Figure: Where BESIX sits among construction firms.** A strip of dots, one for each of 120 peers in construction, spread from 2,000 to 2,000,000 employees on a log scale. BESIX is highlighted and falls in the 10,000 to 25,000 employees range in the larger half. *Peers in construction 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 BESIX headquartered? BESIX is headquartered in Woluwe-Saint-Lambert, Belgium. [Companies in Belgium](https://enrich.chat/companies-in/belgium/) ## What industry is BESIX in? BESIX works in [construction](https://enrich.chat/industries/construction/). This group covers general contractors, specialty trades and builders that put up and renovate buildings and infrastructure. Closest matches on this site: [Leighton Asia](https://enrich.chat/company/leighton-asia/), [NCC](https://enrich.chat/company/ncc/), [Kaefer](https://enrich.chat/company/kaefer/), [Laing O'Rourke](https://enrich.chat/company/laing-orourke/), [Balfour Beatty](https://enrich.chat/company/balfour-beatty/) and [The Arab Contractors](https://enrich.chat/company/the-arab-contractors/). ## What technology does BESIX use? We detect 25 tools on BESIX's public footprint across 14 categories, for example Salesforce for marketing automation and crm, Microsoft Azure Hosting for cloud and hosting and Zendesk for customer support and chat. 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 BESIX, by category.** A bar chart of how many tools were detected at BESIX in each category: Email and productivity 4, Marketing automation and CRM 2, Cloud and hosting 2, Analytics and tracking 2, Advertising and retargeting 2, Video and media 2, Social and widgets 2. *Tools detected on the public footprint of BESIX, by category.* ### Marketing automation and CRM [Salesforce](https://enrich.chat/companies-using/salesforce/)[HubSpot](https://enrich.chat/companies-using/hubspot/) ### Cloud and hosting [Microsoft Azure Hosting](https://enrich.chat/companies-using/microsoft-azure-hosting/)[Microsoft IIS](https://enrich.chat/companies-using/microsoft-iis/) ### Customer support and chat [Zendesk](https://enrich.chat/companies-using/zendesk/) ### Identity and authentication [Facebook Login](https://enrich.chat/companies-using/facebook-login/) ### Developer and DevOps tools [Atlassian Cloud](https://enrich.chat/companies-using/atlassian/) ### Email and productivity [Microsoft 365](https://enrich.chat/companies-using/microsoft-365/)[Microsoft Outlook](https://enrich.chat/companies-using/microsoft-outlook/)[Amazon SES](https://enrich.chat/companies-using/amazon-ses/)[Mailjet](https://enrich.chat/companies-using/mailjet/) ### CDN and security [OpenSSL](https://enrich.chat/companies-using/openssl/) ### Website platforms and CMS [WordPress (self-hosted)](https://enrich.chat/companies-using/wordpress-org/) ### Analytics and tracking [Google Tag Manager](https://enrich.chat/companies-using/google-tag-manager/)[Google Analytics](https://enrich.chat/companies-using/google-analytics/) ### Advertising and retargeting [Facebook Custom Audiences](https://enrich.chat/companies-using/facebook-custom-audiences/)[LinkedIn Marketing Solutions](https://enrich.chat/companies-using/linkedin-marketing-solutions/) ### Video and media [Vimeo](https://enrich.chat/companies-using/vimeo/)[YouTube](https://enrich.chat/companies-using/youtube/) ### Social and widgets [Facebook Widget](https://enrich.chat/companies-using/facebook-widget/)[AddThis](https://enrich.chat/companies-using/addthis/) ### Frameworks and libraries [ASP.NET](https://enrich.chat/companies-using/asp-net/)[React](https://enrich.chat/companies-using/react/) 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 BESIX? These are the closest matches among the construction firms 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 | | --- | --- | | [Leighton Asia](https://enrich.chat/company/leighton-asia/) | Shares Salesforce, Microsoft Azure Hosting and Atlassian Cloud; same size range. 10,000 to 25,000 employees | | [NCC](https://enrich.chat/company/ncc/) | Shares Salesforce, Microsoft Azure Hosting and Microsoft IIS; same size range. 10,000 to 25,000 employees | | [Kaefer](https://enrich.chat/company/kaefer/) | Shares Atlassian Cloud and Mailjet; same size range. 10,000 to 25,000 employees | | [Laing O'Rourke](https://enrich.chat/company/laing-orourke/) | Shares Salesforce, Microsoft Azure Hosting and Atlassian Cloud; same size range. 10,000 to 25,000 employees | | [Balfour Beatty](https://enrich.chat/company/balfour-beatty/) | Shares Microsoft Azure Hosting and Microsoft IIS; a larger company. 25,000 to 50,000 employees | | [The Arab Contractors](https://enrich.chat/company/the-arab-contractors/) | Shares Microsoft Azure Hosting and Microsoft IIS; a larger company. 50,000 to 100,000 employees | | [VINCI Construction](https://enrich.chat/company/vinci-construction/) | Shares Microsoft IIS, Amazon SES and Mailjet; a larger company. 100,000+ employees | | [Andrade Gutierrez](https://enrich.chat/company/andrade-gutierrez/) | Shares Microsoft Azure Hosting and Microsoft IIS; a larger company. 100,000+ employees | To build a longer list of accounts like BESIX, with the people who run their software, ask your AI agent: ```text Use www.enrich.chat to find construction firms that run Microsoft Azure Hosting and Microsoft IIS, like BESIX, and the project executives, operations directors and estimating leaders at each, with titles and verified work emails ``` ## How do I find the right people at BESIX? Start from the website, besix.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 project executives, operations directors and estimating leaders. ```text Use www.enrich.chat to find the project executives, operations directors and estimating leaders at besix.com, with titles and verified work emails ``` Staff addresses follow a known pattern: see the [BESIX email format](https://enrich.chat/email-format/besix/). ## Which other companies use the same tools? See who else runs the tools BESIX uses: [Microsoft 365](https://enrich.chat/companies-using/microsoft-365/)[Microsoft Outlook](https://enrich.chat/companies-using/microsoft-outlook/)[Vimeo](https://enrich.chat/companies-using/vimeo/)[Facebook Login](https://enrich.chat/companies-using/facebook-login/)[YouTube](https://enrich.chat/companies-using/youtube/)[Facebook Widget](https://enrich.chat/companies-using/facebook-widget/) ## Which industry code is BESIX filed under? Public profiles list BESIX under [NAICS 236116](https://enrich.chat/naics/236116/), New Multifamily Housing Construction (Except for-Sale Builders). Open the code to see the other companies filed under it, where they are based and how big they are. ## Frequently asked questions ### How many employees does BESIX have? BESIX is in the 10,000 to 25,000 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 BESIX in? BESIX works in construction. This group covers general contractors, specialty trades and builders that put up and renovate buildings and infrastructure. ### What technology does BESIX use? Tools detected on its public footprint include Microsoft 365, Microsoft Outlook, Facebook Login and Salesforce, across 14 categories. A detected tool shows it was seen, not what BESIX pays for it. ### Where is BESIX headquartered? BESIX is headquartered in Woluwe-Saint-Lambert, Belgium. ### What companies are similar to BESIX? The closest matches on this site are Leighton Asia, NCC and Kaefer. 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 BESIX? BESIX's website is besix.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 BESIX ```text Use www.enrich.chat to find the project executives, operations directors and estimating leaders at besix.com, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Leighton Asia](https://enrich.chat/company/leighton-asia/) - [NCC](https://enrich.chat/company/ncc/) - [Kaefer](https://enrich.chat/company/kaefer/) - [Laing O'Rourke](https://enrich.chat/company/laing-orourke/) - [Balfour Beatty](https://enrich.chat/company/balfour-beatty/) - [The Arab Contractors](https://enrich.chat/company/the-arab-contractors/) - [VINCI Construction](https://enrich.chat/company/vinci-construction/) - [Andrade Gutierrez](https://enrich.chat/company/andrade-gutierrez/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)