Paris, Ile-de-France, France
1-10 employees

About Duo

software, saas, checkout, customer acquisition, ecommerce, software development, reward setup, community building, e-commerce, customer advocacy, customer analytics, viral product insights, referral marketing, incentive platform, discount codes, referral lifecycle management, gdpr compliant, customer tracking, integrated referral system, user privacy

Duo's Tech Stack

3 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

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

Duo's Position in the StackWho Database

  • Duo 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).
  • 12,711 companies in Ile-de-France are in the StackWho database.
  • 97,391 information technology & services companies are in the 1-10 employee range (same size as Duo).

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

Frequently Asked Questions

What technology does Duo use?

Duo uses Gmail, Google Apps, Amazon AWS. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Duo?

StackWho has verified email addresses for 1 decision maker at Duo. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Duo directly for sales, recruiting, or partnerships.

What industry is Duo in?

Duo operates in the information technology & services industry, headquartered in Paris, Ile-de-France, France. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Duo's contact data?

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