Rui Sousa

Rui Sousa serves as Chairman and CEO at Stemmatters. Stemmatters operates in the research sector with approximately 31.0 employees. The company is headquartered in Porto, Porto District. Stemmatters generates annual revenue of 9576000.0.

Industry & Role Insights

• • MessageCEO tracks 2,961 executives in the research sector.
• • 375 executive contacts are available in Porto District.
• • Our database includes 201,469 c suite-level executives.

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Outreach Guidance — research Sector

Executives like Rui Sousa in the research sector receive targeted outreach from sales teams, recruiters, and investors. To stand out, personalize your message with industry-specific context and a clear, specific value proposition relevant to their role at Stemmatters.

Rui Sousa's Position in the MessageCEO Database

• •Rui Sousa is 1 of 1 verified executive contact we track at Stemmatters.
• •2,871 verified executive contacts in research are in the MessageCEO database.
• •373 verified executive contacts in Porto District are in the database.
• •46 verified contacts work at research companies in the 31.0 employee range (same size as Stemmatters).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated June 2026.

How do I reach Rui Sousa directly?

Rui Sousa's verified email address is available to MessageCEO Pro subscribers. They currently serve as Chairman and CEO at Stemmatters. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Rui Sousa work for?

Rui Sousa is Chairman and CEO at Stemmatters, a company in the research sector with 31.0 employees. The company is based in Porto, Porto District.

Can I pitch or sell to Rui Sousa?

As Chairman and CEO at Stemmatters, Rui Sousa is a key decision-maker in the research sector. MessageCEO Pro gives you verified email to reach Rui Sousa directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Rui Sousa in?

Rui Sousa works in the research industry as Chairman and CEO at Stemmatters. MessageCEO provides verified contact information for executives across all major industries.

Is Rui Sousa's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Rui Sousa's profile is kept up-to-date with the latest available information.

Last updated: June 25, 2026