GSMK

cryptophone.de

telecommunications

cryptophone.de

Berlin, Berlin, Germany

1-10 employees

10000000 revenue

LinkedIn Profile

About GSMK

voice, messaging encryption, it security, 256bit keys aes & twofish, 4096bit diffiehellman shared secret exchange, hashing the resulting 4096 bits to the 256 bit session key by means of sha256, detection of maninthemiddle attacks, cryptographic algorithms, diffie-hellman key exchange, security architecture, private network infrastructure, security in remote areas, secure messaging, long-term support, twofish encryption, security lifecycle management, over-the-air attack prevention, security prot

GSMK's Tech Stack

Backend

Nginx

Frontend

Mobile Friendly

Decision Makers at GSMK

1 contact

Frank Rieger

CTO

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2 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

GSMK uses Nginx, Mobile Friendly among other technologies. Use StackWho to identify the right decision-maker email for targeted sales outreach, recruiting, or partnership development.

GSMK's Position in the StackWho Database

• GSMK 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).
• 5,207 companies in Berlin are in the StackWho database.
• 2,453 telecommunications companies are in the 1-10 employee range (same size as GSMK).

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 GSMK use?

GSMK uses Nginx, Mobile Friendly. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at GSMK?

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

What industry is GSMK in?

GSMK operates in the telecommunications industry, headquartered in Berlin, Berlin, Germany. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export GSMK's contact data?

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