Explorium shuts down after almost nine years and more than $127 million raised

Explorium, an Israeli startup that built a data enrichment platform, is shutting down after almost nine years. Calcalist's CTech reported the closure on November 4, citing a farewell post from co-founders Omer Har and Or Tamir. "After almost nine years, Explorium is ceasing operations," they wrote.

The company was founded in 2017 and raised more than $127 million. Its investors included Insight Partners, Zeev Ventures, Emerge, F2 Capital and 01 Advisors. The largest round was a $75 million Series C in May 2021, led by Insight Partners. At the time of that financing, Explorium had about 130 employees.

The team did not stand still. The founders say the company pivoted early toward generative AI. In early 2025 it launched AgentSource, a data product aimed at AI agents used for sales prospecting. It also built Vibe Prospecting, which the founders say reached more than 350,000 registered users. They also say the company kept growing over the past year. Still, they concluded: "In the end, it saddens us to say it all just wasn't enough."

The story has an unusual twist. Maor Shlomo, the third co-founder, left Explorium to focus on Base44, an AI app builder that Wix later acquired. One co-founder's new company found a buyer while the well funded company he helped start could not find a sustainable path. For makers, the contrast raises a practical question: can growth in registered users support a sustainable business? The founders reported continued growth and an early pivot, but neither was enough to keep Explorium operating.