What technologies does Epsor use?

Epsor uses Cloudflare DNS, Amazon SES, MailJet, Sendgrid, Gmail. View their full technology stack — including all 24 detected tools — on StackWho.

Who is the Head of Engineering of Epsor?

Guillaume Castellant is the Head of Engineering at Epsor. Get verified contact information on StackWho.

Who is the Engineering Manager of Epsor?

Surya Ambrose is the Engineering Manager at Epsor. Get verified contact information on StackWho.

Where is Epsor located?

Epsor is based in Paris, Ile-de-France, France.

Epsor

Q: What industry is Epsor in?

Epsor operates in the financial services industry.

epsor.fr

financial services

epsor.fr

Paris, Ile-de-France, France

51-200 employees

LinkedIn Profile

About Epsor

epargne salariale, conseil en investissement, epargne retraite, fintech, responsible asset management, retail, asset growth, growth funding, employee savings, company benefits, financial services, employee benefits platform, social bonds, french fintech, investment analytics, environmental impact, growth strategy, performance metrics, company solutions, biodiversity funds

Epsor's Tech Stack

AI/ML

Decision Makers at Epsor

3 contacts

Guillaume Castellant

Head of Engineering

g***@epsor.fr Sign up to view

Surya Ambrose

Engineering Manager

s***@epsor.fr Sign up to view

Paul Roman

Software Engineering Manager

p***@epsor.fr Sign up to view

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24 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.

Epsor's Position in the StackWho Database

• Epsor is 1 of 21,667 financial services companies tracked in StackWho.
• 21,586 financial 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.
• 2,266 financial services companies are in the 51-200 employee range (same size as Epsor).

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 Epsor use?

Epsor uses Cloudflare DNS, Amazon SES, MailJet, Sendgrid, Gmail, Google Apps, and 18 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Epsor?

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

What industry is Epsor in?

Epsor operates in the financial 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 Epsor's contact data?

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