Problem

Stoa addresses the fragmented and opaque market for physical AI hardware. GPU supply is scattered across OEM allocations, cloud capacity, brokers, operators, and secondary sellers, while trades have historically happened through phone calls and forwarded spreadsheets without a shared price-discovery layer. Prices vary with the SKU, delivery timing, region, quantity, condition, financing, and urgency, leaving buyers unsure whether they are getting a fair price and forcing lenders to mark billions of dollars of GPU collateral from appraisals rather than observable trades.

The main use case is an institutional buyer or seller trying to source, price, or liquidate GPUs such as H100s, H200s, B200s, or A100s without spending weeks calling counterparties. Stoa says the market behind these private conversations is worth hundreds of billions of dollars annually; its homepage also gives an explicitly illustrative, non-live example of an estimated $156,000 saving on an eight-node H100 SXM5 transaction compared with an off-market estimate.

Product / Service

Stoa Markets is an application-only, institutional marketplace for spot transactions in physical AI hardware. A buyer posts an RFQ specifying the hardware and commercial terms, and vetted dealers respond with blind, firm quotes. Stoa says buyers can receive an RFQ outcome within 48 hours rather than spending weeks sourcing manually, while the platform surfaces comparable clearing levels across counterparties and creates an audit trail from inquiry through execution.

Stoa operates as an intermediary rather than buying, selling, or taking custody of hardware. It performs know-your-business and counterparty checks and supports contracts, shipping, and settlement; where platform-facilitated payment is enabled, funds are held and released after delivery is confirmed. The company charges a platform fee on completed transactions, while the resulting quotes and settled trades provide pricing context that can help institutions mark, finance, and eventually hedge AI-hardware assets.

Market

Stoa competes in fintech and hardware-marketplace infrastructure for institutional physical AI hardware, initially GPUs. Its target participants include data-center operators, hardware dealers and brokers, funds, lenders, and liquidators in the United States; it is not a consumer marketplace. The closest named competitor in the evidence is Compute Exchange, which operates an institutional market for pre-owned, refurbished, and OEM-surplus NVIDIA data-center GPUs. Private bilateral broker channels are the incumbent alternative that Stoa is attempting to organize into a more transparent RFQ market.

Stoa is an early-stage, live company founded in 2026 and listed by Y Combinator as an active Summer 2026 company with a three-person San Francisco team. Its strongest disclosed traction is self-reported: more than $300 million in RFQs ran through the book during its first month. That figure represents RFQ volume rather than confirmed completed transaction value, and the available evidence does not disclose revenue, customer counts, completed GMV, or funding; Stoa should therefore be described as early-stage with meaningful initial demand, not definitively labeled pre-revenue.