Bertrand Mastalerz

Bertrand Mastalerz serves as CEO / Directeur général - fondateur d'ELOSI at Elosi. Elosi operates in the information technology & services sector with approximately 98.0 employees. The company is headquartered in Villeneuve-d'Ascq, Hauts-de-France. Elosi generates annual revenue of 336000.0.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • We have verified contacts for 2 executives at Elosi.
• • 81 executive contacts are available in Hauts-de-France.
• • Our database includes 201,468 c suite-level executives.

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David Mastalerz CEO at Elosi

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Marvin Jo CTO at 위블링

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Robert Kim CEO, North America at 당근마켓

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Kyung Lim CTO at 인터파크

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Alex Ryu Chief Operating Officer, Supply Chain Solutions Group at 동양시스템즈(주)

Outreach Guidance — information technology & services Sector

Technology executives make decisions on infrastructure, tooling, and partnerships. When reaching out to Bertrand Mastalerz, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.

Bertrand Mastalerz's Position in the MessageCEO Database

• •Bertrand Mastalerz is 1 of 2 verified executive contacts we track at Elosi.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •81 verified executive contacts in Hauts-de-France are in the database.
• •148 verified contacts work at information technology & services companies in the 98.0 employee range (same size as Elosi).

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 We do not publish personal addresses or sensitive identifiers.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 July 2026.

How do I reach Bertrand Mastalerz directly?

Bertrand Mastalerz's verified email address is available to MessageCEO Pro subscribers. They currently serve as CEO / Directeur général - fondateur d'ELOSI at Elosi. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Bertrand Mastalerz work for?

Bertrand Mastalerz is CEO / Directeur général - fondateur d'ELOSI at Elosi, a company in the information technology & services sector with 98.0 employees. The company is based in Villeneuve-d'Ascq, Hauts-de-France.

Can I pitch or sell to Bertrand Mastalerz?

As CEO / Directeur général - fondateur d'ELOSI at Elosi, Bertrand Mastalerz is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Bertrand Mastalerz directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Bertrand Mastalerz in?

Bertrand Mastalerz works in the information technology & services industry as CEO / Directeur général - fondateur d'ELOSI at Elosi. MessageCEO provides verified contact information for executives across all major industries.

Is Bertrand Mastalerz's contact information verified?

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

Last updated: July 25, 2026