What technologies does 21energy use?

21energy uses Cloudflare DNS, Rackspace MailGun, Outlook, Microsoft Office 365, Zendesk. View their full technology stack — including all 20 detected tools — on StackWho.

Who is the CTO & Shareholder of 21energy?

Matthias Triendl is the CTO & Shareholder at 21energy. Get verified contact information on StackWho.

Where is 21energy located?

21energy is based in Innsbruck, Tyrol, Austria.

21energy

Q: What industry is 21energy in?

21energy operates in the renewables & environment industry.

21energy.com

renewables & environment

21energy.com

Innsbruck, Tyrol, Austria

11-50 employees

LinkedIn Profile

About 21energy

bitcoin, bitcoinmining, erneuerbare energien, energy, services for renewable energy, cryptocurrency, renewables & environment

21energy's Tech Stack

AI/ML

Decision Makers at 21energy

1 contact

Matthias Triendl

CTO & Shareholder

m***@21energy.com Sign up to view

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20 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

Shopify powers e-commerce operations of all sizes. This company is likely receptive to checkout optimization, abandoned cart solutions, loyalty platforms, and merchant financing.

21energy's Position in the StackWho Database

• 21energy is 1 of 3,226 renewables & environment companies tracked in StackWho.
• 3,219 renewables & environment companies in our database have verified decision-maker emails (100% of the cohort).
• 190 companies in Tyrol are in the StackWho database.
• 1,267 renewables & environment companies are in the 11-50 employee range (same size as 21energy).

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 21energy use?

21energy uses Cloudflare DNS, Rackspace MailGun, Outlook, Microsoft Office 365, Zendesk, Google Play, and 14 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at 21energy?

StackWho has verified email addresses for 1 decision maker at 21energy. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach 21energy directly for sales, recruiting, or partnerships.

What industry is 21energy in?

21energy operates in the renewables & environment industry, headquartered in Innsbruck, Tyrol, Austria. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export 21energy's contact data?

Yes. StackWho Pro members can export decision maker contact data for 21energy and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.