Diagram

Naperville, Illinois, United States

11-50 employees

457000 revenue

LinkedIn Profile

About Diagram

digital strategy, web design, web development, digital marketing, inbound marketing, ux, ui, data analytics insights, episerver, ektron, hubspot, umbraco, optimizely, internet publishing, b2b, application development, digital transformation, content management, customer journey mapping, customer experience

Diagram's Tech Stack

AI/ML

Decision Makers at Diagram

3 contacts

Dennis Kardys

Head of Design and Development

d***@wearediagram.com Sign up to view

Chris Osterhout

Senior Vice President, Strategy

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

Martin Hubinger

Owner & CEO

m***@dgrm.cz Sign up to view

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29 technologies detected · 3 decision makers · Emails available

Sales Outreach Angle

HubSpot users typically run inbound-led sales motions. Products that integrate with HubSpot (email automation, CRM enrichment, ABM platforms) are natural fits.

Diagram's Position in the StackWho Database

• Diagram is 1 of 4,163 online media companies tracked in StackWho.
• 4,156 online media companies in our database have verified decision-maker emails (100% of the cohort).
• 11,640 companies in Illinois are in the StackWho database.
• 1,484 online media companies are in the 11-50 employee range (same size as Diagram).

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 Diagram use?

Diagram uses Route 53, Outlook, Amazon AWS, Hubspot, Leadfeeder, Google Tag Manager, and 23 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Diagram?

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

What industry is Diagram in?

Diagram operates in the online media industry, headquartered in Naperville, Illinois, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Diagram's contact data?

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