Case Study: MainStreet achieves more than 400% ARR growth with LinkedIn Marketing Solutions

MainStreet leverages LinkedIn for acquisition, reaching startups with highly engaging, value-driven messaging

MainStreet, a San Jose company that helps high‑growth U.S. tech startups find and claim tax credits, faced a very specific ideal‑customer profile and tightly constrained messaging dictated by the tax code. To reach the right startups with measurable, bottom‑of‑funnel content, they needed more precise targeting, deeper engagement metrics, and a scalable way to qualify leads, so they turned to LinkedIn Sponsored Content.

By using LinkedIn’s company‑level targeting, continuous creative testing, evergreen Sponsored Content, and automated landing‑page + Zapier CRM workflows, MainStreet simplified its messaging and automated lead generation. The results were substantial: ARR grew from $3M to $15M (400%+), qualified leads jumped 300% in a quarter, LinkedIn became their top paid channel, and their Sponsored Content repeatedly ranked among LinkedIn’s top trending ads.

Mainstreet

Nick Abouzeid

Head of Product Marketing