What technologies does Marker.io use?

Marker.io uses Cloudflare DNS, Gmail, Google Apps, Microsoft Office 365, Amazon AWS. View their full technology stack — including all 34 detected tools — on StackWho.

Who is the Founder & CTO of Marker.io?

Olivier Kaisin is the Founder & CTO at Marker.io. Get verified contact information on StackWho.

Who is the Product Designer & Founder of Marker.io?

Emile-Victor Portenart is the Product Designer & Founder at Marker.io. Get verified contact information on StackWho.

Where is Marker.io located?

Marker.io is based in Brussel, Brussels Hoofdstedelijk Gewest, Belgium.

Marker.io

marker.io

information technology & services

marker.io

Brussel, Brussels Hoofdstedelijk Gewest, Belgium

11-50 employees

LinkedIn Profile

About Marker.io

communication, productivity, agency, startup, technology, information & internet, session replay, saas, d2c, issue management, e-commerce, soc 2, website feedback, feedback collection, information technology and services, security tools, gdpr compliance, network logs, custom branding, digital agency

Marker.io's Tech Stack

AI/ML

Project Management

Monday.com

Decision Makers at Marker.io

3 contacts

Olivier Kaisin

Founder & CTO

o***@marker.io Sign up to view

Emile-Victor Portenart

Product Designer & Founder

e***@marker.io Sign up to view

Gary Gaspar

CEO & co-Founder

g***@marker.io Sign up to view

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34 technologies detected · 3 decision makers · Emails available

Sales Outreach Angle

WordPress as a CMS signals a content-driven or SMB digital presence. SEO tools, hosting solutions, and page-builder plugins are natural fits for outreach.

Marker.io's Position in the StackWho Database

• Marker.io 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).
• 71 companies in Brussels Hoofdstedelijk Gewest are in the StackWho database.
• 74,148 information technology & services companies are in the 11-50 employee range (same size as Marker.io).

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 Marker.io use?

Marker.io uses Cloudflare DNS, Gmail, Google Apps, Microsoft Office 365, Amazon AWS, CloudFlare Hosting, and 28 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Marker.io?

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

What industry is Marker.io in?

Marker.io operates in the information technology & services industry, headquartered in Brussel, Brussels Hoofdstedelijk Gewest, Belgium. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Marker.io's contact data?

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