Gerald Claessens

Gerald Claessens serves as CEO at Knewledge. Knewledge operates in the marketing & advertising sector with approximately 24.0 employees. Knewledge generates annual revenue of 77000.0.

Industry & Role Insights

• • MessageCEO tracks 9,879 executives in the marketing & advertising sector.
• • We have verified contacts for 2 executives at Knewledge.
• • Our database includes 201,469 c suite-level executives.

Gmail Google Apps Microsoft Office 365 WordPress.org Apache Google AdSense reCAPTCHA Facebook Login (Connect) Google Tag Manager Mobile Friendly Google Analytics Facebook Custom Audiences Adform Facebook Widget Remote AI

webanalytics search engine optimisation search engine advertising video advertising social advertising social ads tracking display advertising creatives online advertising advertising services digital marketing seo search engine optimization content creation web analytics data analysis tag management performance marketing social media advertising ppc advertising google ads adwords campaigns programmatic buying retargeting remarketing lead generation conversion rate optimization online marketing strategy data-driven marketing campaign management kpi monitoring landing page optimization digital strategy consulting cross-channel marketing audience targeting multi-channel campaigns brand awareness content marketing google display network social media strategy digital media strategy creative advertising solutions data visualization reporting tools market research customer engagement advertising strategy paid media management email marketing social networking ads marketing automation customer acquisition analytics reporting business intelligence performance metrics information technology & services search marketing marketing marketing & advertising data analytics sales saas computer software enterprise software enterprises b2b analytics

AP

Aurelien Petit COO & Digital Marketing Consultant at Knewledge

JV

Jose Vivar Group CTO-CIO at 014 Media

DA

David Amoros CEO, Creative Director at 023. Think. Create. Produce.

DP

David Puig CEO, Creative Director at 023. Think. Create. Produce.

MD

Mike Davison Group CEO at 1000heads

Outreach Guidance — marketing & advertising Sector

Executives like Gerald Claessens in the marketing & advertising 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 Knewledge.

Gerald Claessens's Position in the MessageCEO Database

• •Gerald Claessens is 1 of 2 verified executive contacts we track at Knewledge.
• •9,714 verified executive contacts in marketing & advertising are in the MessageCEO database.
• •233 verified contacts work at marketing & advertising companies in the 24.0 employee range (same size as Knewledge).

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 Gerald Claessens directly?

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

What company does Gerald Claessens work for?

Gerald Claessens is CEO at Knewledge, a company in the marketing & advertising sector with 24.0 employees.

Can I pitch or sell to Gerald Claessens?

As CEO at Knewledge, Gerald Claessens is a key decision-maker in the marketing & advertising sector. MessageCEO Pro gives you verified email to reach Gerald Claessens directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Gerald Claessens in?

Gerald Claessens works in the marketing & advertising industry as CEO at Knewledge. MessageCEO provides verified contact information for executives across all major industries.

Is Gerald Claessens's contact information verified?

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

Last updated: July 24, 2026