There are provided systems and methods for a secure identity verification marketplace using hashed data and forward hashing search functions. A service provider, such as an electronic transaction processor or other entity that may provide an online platform, may provide an online marketplace accessible by identity verification data bureaus, as well as entities requiring identity verification or other entities. The bureaus may utilize an SDK provided by the service provider to has their identity data and upload to the marketplace with metadata explaining the underlying identity verification data. This may be done so the underlying data is not revealed to the service provider or other entities without purchase and/or request to the bureau. When an entity searches for the data, a forward hashing function may determine hashes of different variations of the search query, which may be used to locate matching data.