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Callum Downie

Co-Founder & CTO at Capsa AI

CTO C-Suite
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Pro only
Pro only
London, England, United Kingdom
capsa.ai

Company Details

Company: Capsa AI
Industry: information technology & services
Employees: 13
HQ Location: London, United Kingdom
Company LinkedIn: Pro only

Technology Stack

Gmail Google Apps Microsoft Office 365 Amazon AWS Bing Ads Google Tag Manager Twitter Advertising Facebook Login (Connect) DoubleClick Nginx Mobile Friendly Ruby On Rails Google Workspace QuickBooks Scala Render Reviews Remote Box Airtable

Professional Summary

Callum Downie is Co-Founder & CTO at Capsa AI. Capsa AI operates in the information technology & services industry and has 13 employees. Based in London, England, United Kingdom. Classified as a c-suite-level CTO leader. Their organization's technology stack includes Gmail, Google Apps, Microsoft Office 365, Amazon AWS, Bing Ads, and 20 other technologies.

C-Suite level · CTO
Verified Apr 26, 2026

Position in the CTO Rank Database

  • • 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 Callum Downie?

Callum Downie has a verified email address on file on CTO Rank. They work at Capsa AI. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.

What company does Callum Downie work for?

Callum Downie is Co-Founder & CTO at Capsa AI, a company in the information technology & services industry with 13 employees. The company is headquartered in London, United Kingdom.

What is Callum Downie's role in technology leadership?

Callum Downie is classified as a CTO leader at the c-suite level.

What technologies does Callum Downie's organization use?

Callum Downie's organization uses a technology stack that includes Gmail, Google Apps, Microsoft Office 365, Amazon AWS, Bing Ads, Google Tag Manager. This information is useful for sales teams, recruiters, and technology vendors.

Is Callum Downie open to recruiting or new opportunities?

CTO Rank does not track open-to-work status. The best approach is to reach out directly to Callum Downie using the verified contact information available to Pro members. When recruiting a Co-Founder & CTO, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.

Can I pitch or sell to Callum Downie at Capsa AI?

Callum Downie is Co-Founder & CTO at Capsa AI. CTOs like Callum Downie typically evaluate vendors in Gmail, Google Apps, Microsoft Office 365, and related categories. Use CTO Rank Pro to get verified email and approach directly.

How accurate is Callum Downie's profile data?

CTO Rank verifies and refreshes profile data weekly. Callum Downie's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.