Company Details
Technology Stack
Professional Summary
Mark Callaghan is Account Chief Technology Officer - Healthcare & Life Sciences at Atos. Atos operates in the information technology & services industry and has 72000 employees. Based in Telford, England, United Kingdom. Classified as a c-suite-level CTO leader. Their organization's technology stack includes Outlook, Microsoft Office 365, Atlassian Cloud, Zoho CRM, OneTrust, and 20 other technologies. Atos reports annual revenue of 9977673000.
Industry & Role Insights
- • CTO Rank tracks 138,833 CTO leaders with verified contact information.
- • There are 166,587 tech leaders in the information technology & services industry in our database.
- • We have verified contacts for 139 tech leaders at Atos.
- • 28,246 tech leaders in England are available in our database.
Position in the CTO Rank Database
- • Mark Callaghan is 1 of 140,489 leaders with the CTO role tracked in the CTO Rank database.
- • 62,499 hold the CTO role at information technology & services companies (out of 167,492 total information technology & services leaders in our database).
- • 8,497 hold the CTO role in England.
- • 102 hold the CTO role at companies with 72000 employees.
- • Typical CTO compensation in England: $250,000 – $650,000 (median $420,000). Composite from levels.fyi, Glassdoor, and Payscale data; adjusted for state cost of labor.
Data compiled from LinkedIn public profiles, company filings, and verified public technology signals. Methodology & sources · Updated June 2026.
Frequently Asked Questions
How do I contact Mark Callaghan?
Mark Callaghan has a verified email address on file on CTO Rank. They work at Atos. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does Mark Callaghan work for?
Mark Callaghan is Account Chief Technology Officer - Healthcare & Life Sciences at Atos, a company in the information technology & services industry with 72000 employees. The company is headquartered in Irving, Texas, United States.
What is Mark Callaghan's role in technology leadership?
Mark Callaghan is classified as a CTO leader at the c-suite level.
What technologies does Mark Callaghan's organization use?
Mark Callaghan's organization uses a technology stack that includes Outlook, Microsoft Office 365, Atlassian Cloud, Zoho CRM, OneTrust, Django Language. This information is useful for sales teams, recruiters, and technology vendors.
Is Mark Callaghan open to recruiting or new opportunities?
CTO Rank does not track open-to-work status. The best approach is to reach out directly to Mark Callaghan using the verified contact information available to Pro members. When recruiting a Account Chief Technology Officer - Healthcare & Life Sciences, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.
Can I pitch or sell to Mark Callaghan at Atos?
Mark Callaghan is Account Chief Technology Officer - Healthcare & Life Sciences at Atos. CTOs like Mark Callaghan typically evaluate vendors in Outlook, Microsoft Office 365, Atlassian Cloud, and related categories. Use CTO Rank Pro to get verified email and approach directly.
How accurate is Mark Callaghan's profile data?
CTO Rank verifies and refreshes profile data weekly. Mark Callaghan's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.
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