Sponge is the easiest way for agents to hold and spend money, and for businesses to sell directly to them. For agents: Sponge lets agents hold funds and transact autonomously with other agents and businesses using bank accounts, cards, and crypto.
Sponge is a Y Combinator company in the Winter 2026 batch. Its directory entry describes it as: Financial infrastructure for the agent economy. The founders listed are Eric Zhang (Founder), Jae Choi (Founder), Rishab Luthra (Founder) (Y Combinator directory entry, February 16, 2026).
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New accelerator entry · 2026-02-16 · the record
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Sponge is the easiest way for agents to hold and spend money, and for businesses to sell directly to them. For agents: Sponge lets agents hold funds and transact autonomously with other agents and businesses using bank accounts, cards, and crypto. Agents can autonomously purchase services such as email, browser use, and premium data without human involvement. For businesses: Sponge makes it easy to onboard and accept payments from agents without human interaction. Businesses can sell their services directly to agents with a few clicks, no code changes required.
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No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on Sponge: verified, sourced, every claim cited, ready in a few minutes. See pricing.
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