Testelium

testelium.com

Tallinn, Harju County, Estonia

11-50 employees

LinkedIn Profile

About Testelium

telecommunication, sms, automation, api, enterprises communications, smstesting, numberverifierservices, telecommunications, sms quality verification, retail, sms performance analytics, sms performance monitoring, automated sms testing, delivery delay check, custom udh testing, software publishing, sms delivery success, real-time sms testing, sms delivery manipulation detection, sms delivery verification

Testelium's Tech Stack

Decision Makers at Testelium

1 contact

Sergey Pilipchenko

CEO

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6 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

Zendesk usage signals a customer support operation. Alternatives, add-ons (AI agents, ticketing automation, CX analytics), and customer feedback tools are strong sales angles.

Testelium's Position in the StackWho Database

• Testelium 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).
• 1,549 companies in Harju County are in the StackWho database.
• 2,638 telecommunications companies are in the 11-50 employee range (same size as Testelium).

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 Testelium use?

Testelium uses Cloudflare DNS, Rackspace MailGun, Gmail, Google Apps, Zendesk, CloudFlare Hosting. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Testelium?

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

What industry is Testelium in?

Testelium operates in the telecommunications industry, headquartered in Tallinn, Harju County, Estonia. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Testelium's contact data?

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