21 Strun

21s.pl

Warsaw, Masovian Voivodeship, Poland

1-10 employees

LinkedIn Profile

About 21 Strun

it services & it consulting, digital transformation, version control, project management, user experience optimization, prototyping, it consulting, infrastructure management, infrastructure setup, needs analysis, custom web solutions, software engineering, incident response, agile project management, system audit, reactjs, cloud infrastructure, python, accessibility testing, consulting

21 Strun's Tech Stack

Decision Makers at 21 Strun

1 contact

Marcin Pietrzak

CEO / Prezes Zarządu

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6 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

21 Strun is a technology company. Software vendors, dev tools, and SaaS platforms find technology companies like this highly receptive. Use StackWho to identify the right decision-maker (CTO, VP Eng, or Head of Product) and reach out with a stack-specific pitch.

21 Strun's Position in the StackWho Database

• 21 Strun 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).
• 685 companies in Masovian Voivodeship are in the StackWho database.
• 97,391 information technology & services companies are in the 1-10 employee range (same size as 21 Strun).

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 21 Strun use?

21 Strun uses Gmail, Google Apps, Varnish, Google Tag Manager, Mobile Friendly, Remote. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at 21 Strun?

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

What industry is 21 Strun in?

21 Strun operates in the information technology & services industry, headquartered in Warsaw, Masovian Voivodeship, Poland. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export 21 Strun's contact data?

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