Who is the CTO of 1&1 Versatel?

Martin Fischer is the CTO at 1&1 Versatel. Get verified contact information on StackWho.

Who is the Referent CTO of 1&1 Versatel?

Drs Gielkens is the Referent CTO at 1&1 Versatel. Get verified contact information on StackWho.

Where is 1&1 Versatel located?

1&1 Versatel is based in Duesseldorf, North Rhine-Westphalia, Germany.

1&1 Versatel

Q: What industry is 1&1 Versatel in?

1&1 Versatel operates in the telecommunications industry.

1und1.net

telecommunications

1und1.net

Duesseldorf, North Rhine-Westphalia, Germany

1001-5000 employees

668000000 revenue

LinkedIn Profile

About 1&1 Versatel

telekommunikation, glasfaser, bandbreite, gigabit, internet, telecommunications, information technology, fiber optic network services, fiber optic services, fiber network upgrades, fiber infrastructure, fiber tariffs, fiber for mobile networks, fiber network monitoring, network automation, data protection, fiber for carriers, b2b, fiber expansion, fiber for 5g support

1&1 Versatel's Tech Stack

AI/ML

DevOps

Ansible

Decision Makers at 1&1 Versatel

5 contacts

Martin Fischer

CTO

m***@1und1.net Sign up to view

Drs Gielkens

Referent CTO

j***@versatel.de Sign up to view

Daniel Boettcher

Vice President Access Network & Service Engineering

d***@1und1.net Sign up to view

Joachim Sinzig

Vice President Products, Engineering & Consulting

j***@1und1.net Sign up to view

Andre Blunck

Head of Sales | Large Enterprises

a***@1und1.net Sign up to view

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13 technologies detected · 5 decision makers · Emails available

Sales Outreach Angle

Google Analytics signals active web measurement. Privacy-focused analytics alternatives, conversion optimization, and A/B testing platforms are relevant pitches.

1&1 Versatel's Position in the StackWho Database

• 1&1 Versatel is 1 of 6,980 telecommunications companies tracked in StackWho.
• 6,918 telecommunications companies in our database have verified decision-maker emails (99% of the cohort).
• 3,954 companies in North Rhine-Westphalia are in the StackWho database.
• 272 telecommunications companies are in the 1001-5000 employee range (same size as 1&1 Versatel).

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 1&1 Versatel use?

1&1 Versatel uses Microsoft Office 365, Google Analytics, Linkedin Marketing Solutions, Google AdWords Conversion, Google Dynamic Remarketing, DoubleClick, and 7 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at 1&1 Versatel?

StackWho has verified email addresses for 5 decision makers at 1&1 Versatel. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach 1&1 Versatel directly for sales, recruiting, or partnerships.

What industry is 1&1 Versatel in?

1&1 Versatel operates in the telecommunications industry, headquartered in Duesseldorf, North Rhine-Westphalia, Germany. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export 1&1 Versatel's contact data?

Yes. StackWho Pro members can export decision maker contact data for 1&1 Versatel and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.