The team behind your LinkedIn growth.
Rethoric is a Y Combinator-backed agency that helps founders and executives build authority on LinkedIn. We combine strategic content creation with data-driven engagement to drive millions of impressions and real business growth.
Our Story
Rethoric was born from a simple observation: the most successful founders on LinkedIn were not just posting content. They were building real relationships, establishing thought leadership, and creating a flywheel of trust that drove inbound deals. Founded by serial entrepreneur Eduardo Mussali, Rethoric went through Y Combinator (W21) to build a data-driven content agency that could replicate this for any founder.
Based in San Diego, CA, we work with Series A+ founders and executives at high-growth tech startups. Our human writers create personalized content based on bi-monthly founder interviews, helping clients generate over 1 million monthly LinkedIn impressions and turn their profiles into their most powerful growth channel.
Our process is hands-on and collaborative. Founders attend bi-monthly interview calls where we capture their expertise, insights, and unique perspective. We then craft content in their voice, submit it for approval, and handle everything from publishing to engagement. The result is a consistent LinkedIn presence that builds authority without taking time away from running a company.
What Is LinkedIn Ghostwriting for Founders?
LinkedIn ghostwriting for founders is a professional content service where experienced writers create high-engagement LinkedIn posts on behalf of startup executives who lack time to write consistently. Unlike generic social media management, founder-focused ghostwriting preserves authentic voice through structured interviews, capturing real insights, stories, and expertise that only the founder possesses.
Rethoric pioneered a methodology built on three pillars: monthly founder interviews for voice capture, human-written posts published three to four times per week, and daily strategic engagement to grow reach organically. This integrated approach has helped every long-term client surpass one million monthly LinkedIn impressions within eight months. The service requires roughly one hour and twenty minutes per month from the founder, making it one of the highest-ROI channels available to Series A and later-stage companies looking to build inbound pipeline through thought leadership rather than paid acquisition.
Meet the Founder
Eduardo Mussali, CEO & Founder
Eduardo is a serial entrepreneur who previously founded Commando (acquired), co-founded SinDelantal (acquired), and founded MiOrden (acquired). He also served as Managing Director at Deezer. After seeing firsthand how strategic LinkedIn content could transform a founder's visibility and deal flow, Eduardo founded Rethoric to help founders cut through the noise and build genuine authority on LinkedIn.
Rethoric went through Y Combinator (W21) and is based in San Diego, CA. The team helps founders generate over 1 million monthly LinkedIn impressions through data-driven thought leadership content. Eduardo personally oversees the strategy for every client, ensuring content quality and brand alignment through bi-monthly interview calls and a hands-on approval process.
What We Do
LinkedIn Content Strategy
We develop a content strategy tailored to your industry, audience, and business goals. Every post is crafted to position you as a thought leader and drive meaningful engagement with the right people.
Ghostwriting & Content Creation
Our team writes in your voice, capturing your expertise and perspective. We handle everything from ideation to publishing, so you can focus on running your company while your LinkedIn presence grows consistently.
Engagement & Network Growth
Content alone is not enough. We actively engage with your target audience, grow your network strategically, and create the flywheel effect that turns LinkedIn impressions into real conversations and deals.
Join Rethoric
