Zel21

zel21.com

Madrid, Community of Madrid, Spain

11-50 employees

LinkedIn Profile

About Zel21

retail marketing, branding, digital marketing, web design, inbound marketing, design, seo, social media, sem, packaging, marketing, advertising services, retail, video editing, immersive brand experiences, product design, crm solutions, advertising & marketing, video marketing, email marketing

Zel21's Tech Stack

AI/ML

Decision Makers at Zel21

1 contact

Paula Garcia

CMO

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12 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

WordPress as a CMS signals a content-driven or SMB digital presence. SEO tools, hosting solutions, and page-builder plugins are natural fits for outreach.

Zel21's Position in the StackWho Database

• Zel21 is 1 of 80,546 marketing & advertising companies tracked in StackWho.
• 80,503 marketing & advertising companies in our database have verified decision-maker emails (100% of the cohort).
• 4,347 companies in Community of Madrid are in the StackWho database.
• 21,907 marketing & advertising companies are in the 11-50 employee range (same size as Zel21).

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 Zel21 use?

Zel21 uses Gmail, Google Apps, Microsoft Office 365, Google Font API, Apache, WordPress.org, and 6 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Zel21?

StackWho has verified email addresses for 1 decision maker at Zel21. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Zel21 directly for sales, recruiting, or partnerships.

What industry is Zel21 in?

Zel21 operates in the marketing & advertising industry, headquartered in Madrid, Community of Madrid, Spain. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Zel21's contact data?

Yes. StackWho Pro members can export decision maker contact data for Zel21 and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.