Signify

signify.ai

London, United Kingdom

11-50 employees

LinkedIn Profile

About Signify

artificial intelligence, data science, predictive modelling, polling, public affairs, social media, politics, digital forensics, investigations, data journalism, brand, marketing, machine learning, charities, financial services, strategy, sport, online abuse, sport tech, football

Signify's Tech Stack

AI/ML

Decision Makers at Signify

2 contacts

Jonathan Hirshler

Co-Founder & CEO

j***@signify.ai Sign up to view

Jonathan Sebire

Founder

j***@signify.ai Sign up to view

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10 technologies detected · 2 decision makers · Emails available

Sales Outreach Angle

Signify uses Outlook, Cedexis Radar, YouTube among other technologies. Use StackWho to identify the right decision-maker email for targeted sales outreach, recruiting, or partnership development.

Signify's Position in the StackWho Database

• Signify is 1 of 3,123 information services companies tracked in StackWho.
• 3,108 information services companies in our database have verified decision-maker emails (100% of the cohort).
• 991 information services companies are in the 11-50 employee range (same size as Signify).

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 Signify use?

Signify uses Outlook, Cedexis Radar, YouTube, Typekit, Squarespace ECommerce, Mobile Friendly, and 4 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Signify?

StackWho has verified email addresses for 2 decision makers at Signify. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Signify directly for sales, recruiting, or partnerships.

What industry is Signify in?

Signify operates in the information services industry, headquartered in London, United Kingdom. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Signify's contact data?

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