> 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/omnicom/ # Omnicom A marketing and advertising 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:** Omnicom (omnicomgroup.com) is a marketing and advertising organization with 50,000 to 100,000 employees. Its public technology footprint includes Microsoft Outlook, AWS, Amazon SES and New Relic. ## How big is Omnicom? Omnicom has 50,000 to 100,000 employees. Among the marketing and advertising agencies 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 Omnicom. **Figure: Where Omnicom sits among marketing and advertising agencies.** A strip of dots, one for each of 120 peers in marketing and advertising, spread from 2,000 to 2,000,000 employees on a log scale. Omnicom is highlighted and falls in the 50,000 to 100,000 employees range among the largest. *Peers in marketing and advertising 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 Omnicom headquartered? Omnicom is headquartered in New York, New York. [More marketing and advertising agencies in New York](https://enrich.chat/companies-in/new-york/marketing-and-advertising/)[Companies in New York](https://enrich.chat/companies-in/new-york/) ## What industry is Omnicom in? Omnicom works in [marketing and advertising](https://enrich.chat/industries/marketing-and-advertising/). This group covers agencies and service firms that plan campaigns, buy media and create advertising for other organizations. Similar organizations on this site: [Omnicom Media Group](https://enrich.chat/company/omnicom-media-group/), [Publicis Re:Sources](https://enrich.chat/company/publicis-re-sources/), [Publicis](https://enrich.chat/company/publicis/), [Publicis Groupe](https://enrich.chat/company/publicis-groupe/), [WPP](https://enrich.chat/company/wpp/) and [GroupM](https://enrich.chat/company/groupm/). ## What technology does Omnicom use? We detect 17 tools on Omnicom's public footprint across 11 categories, for example ON24 for marketing automation and crm, AWS for cloud and hosting and New Relic for data and observability. 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 Omnicom, by category.** A bar chart of how many tools were detected at Omnicom in each category: Email and productivity 3, Cloud and hosting 2, Analytics and tracking 2, Marketing automation and CRM 1, Data and observability 1, Developer and DevOps tools 1, CDN and security 1. *Tools detected on the public footprint of Omnicom, by category.* ### Marketing automation and CRM [ON24](https://enrich.chat/companies-using/on24/) ### Cloud and hosting [AWS](https://enrich.chat/companies-using/aws/)[WP Engine](https://enrich.chat/companies-using/wp-engine/) ### Data and observability [New Relic](https://enrich.chat/companies-using/new-relic/) ### Developer and DevOps tools [BugHerd](https://enrich.chat/companies-using/bugherd/) ### Email and productivity [Microsoft Outlook](https://enrich.chat/companies-using/microsoft-outlook/)[Amazon SES](https://enrich.chat/companies-using/amazon-ses/)[Mailchimp SPF](https://enrich.chat/companies-using/mailchimp-spf/) ### CDN and security [UltraDNS](https://enrich.chat/companies-using/ultradns/) ### 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/) ### Video and media [YouTube](https://enrich.chat/companies-using/youtube/) ### Frameworks and libraries [Ruby on Rails](https://enrich.chat/companies-using/ruby-on-rails/) 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/). ## How do I find the right people at Omnicom? Start from the website, omnicomgroup.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 agency owners, heads of strategy and operations leaders. ```text Use www.enrich.chat to find the agency owners, heads of strategy and operations leaders at omnicomgroup.com, with titles and verified work emails ``` Staff addresses follow a known pattern: see the [Omnicom email format](https://enrich.chat/email-format/omnicom/). ## Which other companies use the same tools? See who else runs the tools Omnicom uses: [Microsoft Outlook](https://enrich.chat/companies-using/microsoft-outlook/)[YouTube](https://enrich.chat/companies-using/youtube/)[WordPress (self-hosted)](https://enrich.chat/companies-using/wordpress-org/)[AWS](https://enrich.chat/companies-using/aws/)[Amazon SES](https://enrich.chat/companies-using/amazon-ses/)[New Relic](https://enrich.chat/companies-using/new-relic/) ## Frequently asked questions ### How many employees does Omnicom have? Omnicom 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 Omnicom in? Omnicom works in marketing and advertising. This group covers agencies and service firms that plan campaigns, buy media and create advertising for other organizations. ### What technology does Omnicom use? Tools detected on its public footprint include Microsoft Outlook, AWS, Amazon SES and New Relic, across 11 categories. A detected tool shows it was seen, not what Omnicom pays for it. ### Where is Omnicom headquartered? Omnicom is headquartered in New York, New York. ### What is the website of Omnicom? Omnicom's website is omnicomgroup.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 Omnicom ```text Use www.enrich.chat to find the agency owners, heads of strategy and operations leaders at omnicomgroup.com, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Omnicom Media Group](https://enrich.chat/company/omnicom-media-group/) - [Publicis Re:Sources](https://enrich.chat/company/publicis-re-sources/) - [Publicis](https://enrich.chat/company/publicis/) - [Publicis Groupe](https://enrich.chat/company/publicis-groupe/) - [WPP](https://enrich.chat/company/wpp/) - [GroupM](https://enrich.chat/company/groupm/) - [VML](https://enrich.chat/company/vml/) - [SEO](https://enrich.chat/company/seo/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)