What technologies does Activity Stream use?

Activity Stream uses Route 53, Mailchimp Mandrill, Sendgrid, Gmail, Outlook. View their full technology stack — including all 13 detected tools — on StackWho.

Who is the CTO & co-founder of Activity Stream?

Hugh Topping is the CTO & co-founder at Activity Stream. Get verified contact information on StackWho.

Who is the CEO & Founder of Activity Stream?

Einar Saevarsson is the CEO & Founder at Activity Stream. Get verified contact information on StackWho.

Where is Activity Stream located?

Activity Stream is based in Reykjavik, Capital Region, Iceland.

Activity Stream

activitystream.com

information technology & services

activitystream.com

Reykjavik, Capital Region, Iceland

11-50 employees

5000000 revenue

LinkedIn Profile

About Activity Stream

operations intelligence, artificial intelligence, realtime analytics, actionable intelligence, event analytics, machine learning, event planning, event management, event marketing, venue support, enterprise software, analytics, business intelligence, business information systems, software, information technology, it services & it consulting, information technology & services, events services, marketing & advertising

Activity Stream's Tech Stack

AI/ML

Decision Makers at Activity Stream

3 contacts

Hugh Topping

CTO & co-founder

h***@activitystream.com Sign up to view

Einar Saevarsson

CEO & Founder

e***@activitystream.com Sign up to view

Blair Valentine

Sales Director, North America

a***@activitystream.com Sign up to view

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13 technologies detected · 3 decision makers · Emails available

Sales Outreach Angle

AWS infrastructure signals engineering sophistication. This company likely evaluates cloud cost management, security tooling, observability, and developer productivity solutions.

Activity Stream's Position in the StackWho Database

• Activity Stream is 1 of 194,140 information technology & services companies tracked in StackWho.
• 193,618 information technology & services companies in our database have verified decision-maker emails (100% of the cohort).
• 199 companies in Capital Region are in the StackWho database.
• 74,148 information technology & services companies are in the 11-50 employee range (same size as Activity Stream).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.

Frequently Asked Questions

What technology does Activity Stream use?

Activity Stream uses Route 53, Mailchimp Mandrill, Sendgrid, Gmail, Outlook, Google Apps, and 7 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Activity Stream?

StackWho has verified email addresses for 3 decision makers at Activity Stream. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Activity Stream directly for sales, recruiting, or partnerships.

What industry is Activity Stream in?

Activity Stream operates in the information technology & services industry, headquartered in Reykjavik, Capital Region, Iceland. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Activity Stream's contact data?

Yes. StackWho Pro members can export decision maker contact data for Activity Stream and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.