A powerful content marketing partner for enterprise corporations & global creative agencies.

By Clarissa

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More than just an extension of our clients’ teams —

By Clarissa is an integral part.

Embedded, ongoing marketing support for industry-leading brands & award-winning creative agencies.

By Clarissa is a content marketing consultancy founded by Clarissa Buch Zilberman. We integrate directly into your team to scale and maximize your in-house B2B, B2C & B2E content marketing capabilities. Our indispensable internal support helps execute, accelerate, and manage content initiatives in real time — even as priorities shift — to maximize results & boost ROI.

Content Services

End-to-End Content Ideation & Development • Custom Writing & Editing • Strategic Copywriting, Copyediting & Proofreading • Content Audits & SEO Optimizations • Project, Workflow & CMS Management • SEO & SEM Writing • Optimized Content for Amazon & Walmart PDPs • Interactive Workbooks • Short- & Long-Form Blogs • E-Commerce Copy & Product Descriptions • Landing & Pillar Pages & Supporting Content • E-Books & White Papers • Sales & Marketing Alignment • Email, Social Media, SMS & Web Copy • Advertorials • Sales Collateral • Editorial Writing • Managing Editor & Freelancer Management • Editorial Calendars • 360-Degree Content Support • Media Kits • Content Hub Management • Thought Leadership • Content Strategy & Consulting

Featured Client Work