Company Overview

About Mimecast

Mimecast protects the work of every person in the organization, across every channel, from every actor, human and AI. Built around four core capabilities — see everything, score and apply policy, block and contain, and close the loop — Mimecast maps the full attack chain across email, human behavior, endpoints, AI agents, and data. The result is one unified view of risk and automated protection across every layer. Founded in 2003 and headquartered in London, Mimecast serves more than 42,000 organizations and 27 million users worldwide. Analyzing 24 trillion behavioral signals annually, Mimecast draws on a 20+ year behavioral baseline that is unmatched in the industry. We secure humans, data & AI. Work Protected.

2003

Founded by Peter Bauer and Neil Murray.

Global offices including North America, Europe, United Kingdom, Africa, Australia, Singapore and India.

42,000+

Customers in more than
100 countries.

2000+

Employees
worldwide.

Meet the leadership team

Mimecast is led by CEO Ranjan Singh, who was named to the role in June 2026 to lead the company's next chapter of growth. Under Ranjan's leadership, Mimecast is advancing its platform to meet the pressing challenge of securing humans, data, and AI.

Ranjan joined Mimecast in 2025 as Chief Product & Technology Officer, where he unified the product and engineering organizations, and accelerated the company's AI-powered platform. Prior to Mimecast, Ranjan built a strong track record of product leadership and platform innovation at companies including Kaseya, Crestron Electronics, and IPC Systems. He and his executive team are committed to ensuring customer organizations can work protected, driven by a shared belief that the best outcomes are achieved together. Meet Ranjan and the executive team!

Meet The Team

Our distinctive culture

Through our Resilience Together corporate social responsibility program, Mimecast provides time, resources, and funds to empower those in underserved communities worldwide. To learn more about our commitment to the communities in which we live and serve, please click below.

Learn More

News & events

Mimecast thought leaders are regularly sought after to provide commentary to leading media publications around the world. Their insights help executive leadership and cybersecurity professionals learn how to manage risk and complexity, while protecting their organizations from today’s increasingly complex and sophisticated threat landscape. Read on for our latest coverage highlights and corporate announcements.

Industry Recognition

We've worked hard to thoughtfully build great products that truly address critical business needs. And we're proud to be recognized by thought leaders in the technology community for all that we've accomplished.

Our Awards

We’re an energetic, values-led business that's entered an exciting new chapter of growth and transformation, investing in our products, technology, and our people

We're working tirelessly to create exciting new capabilities, providing our people with unique growth opportunities unmatched elsewhere in our industry, as we accelerate real product innovation, market expansion with a channel-first approach, and always focused on our mission that matters - stopping bad things from happening to good organizations. Now is the time to join us and drive growth and innovation that’s good for our people, our business, and our customers.

We'll continue to live the Mimecast Way - our company values, with a culture that cares, striving to build a better business while we build a bigger business - for the benefit of our people, customers, and the wider community.

Careers at Mimecast

Mimecast operates offices and data centers across the world

Offices

London, United Kingdom
Lexington, MA. USA
St Helier, Jersey
Mississauga Ontario, Canada
Paris, France
Munich, Gemany
Tel-Aviv-Yafo, Israel
Johannesburg, South Africa
Hilversum, Netherlands
Cape Town, South Africa
Dubai, UAE
Bengaluru, India
Melbourne, Australia
Sydney, Australia

Data
Centers

United States
Canada
United Kingdom
Germany
Australia
South Africa