Atsign

atsign.com

information technology & services

atsign.com

San Jose, California, United States

11-50 employees

21803000 revenue

LinkedIn Profile

About Atsign

ai, ai security, mcp security, ai infrastructure, privacy, iot security, iot, cybersecurity, linux, dev ops, system admin, critical infrastructure protection, gateway managment, technology, information & internet, cryptographic identity management, secure, private ai communication, secure ai agents, managed services

Atsign's Tech Stack

AI/ML

Decision Makers at Atsign

4 contacts

Colin Constable

Internet Optimist / Co-Founder & CTO

c***@atsign.com Sign up to view

Randy Bias

VP Open Source Strategy & Technology

r***@gmail.com Sign up to view

Kevin Nickels

Co-Founder

k***@atsign.com Sign up to view

Barbara Tallent

Co-Founder/CEO

b***@atsign.com Sign up to view

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19 technologies detected · 4 decision makers · Emails available

Sales Outreach Angle

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Atsign's Position in the StackWho Database

• Atsign 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).
• 53,147 companies in California are in the StackWho database.
• 74,148 information technology & services companies are in the 11-50 employee range (same size as Atsign).

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 Atsign use?

Atsign uses Rackspace MailGun, Sendgrid, Gmail, Google Apps, Amazon AWS, Google Cloud Hosting, and 13 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Atsign?

StackWho has verified email addresses for 4 decision makers at Atsign. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Atsign directly for sales, recruiting, or partnerships.

What industry is Atsign in?

Atsign operates in the information technology & services industry, headquartered in San Jose, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Atsign's contact data?

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