PTB Ventures

Joust is a fintech company that provides banking and payments solutions for the self-employed and freelancers. It offers direct merchant services and business banking through nbkc, a chartered FDIC-insured community bank, and features PayArmour, an invoice factoring service that protects against late or non-payment. The platform supports real-time payments, invoicing, and account analytics, helping independent workers manage cash flow and financial risk. Founded in 2017 and headquartered in Austin, Texas, Joust combines banking and software tools to simplify payments for solo professionals.

Learning Machine, established in 2017 and headquartered in New York, specializes in blockchain-based digital credentialing systems. It enables governments, companies, and educational institutions worldwide to create, issue, and manage secure, tamper-proof digital records using the Blockcerts open standard. The company's flagship product, the Learning Machine Federated Issuing System, facilitates large-scale issuance of blockchain records, empowering individuals with self-sovereign identity and streamlining processes like recruitment, enrollment, and credential verification. As of 2020, Learning Machine operates as a subsidiary of Hyland Software.

Element Inc., established in 2012 and based in New York, specializes in developing and distributing mobile-based software for biometric identity solutions. The company's platform enables various applications, including building immunization platforms, facilitating connected diagnostics, providing digital identities for healthcare providers, and enabling access to financial services. Element focuses on regions like Asia and Africa, where proper identification is often lacking, to promote inclusivity and sustainable development. The company was co-founded by Yann LeCun, a prominent figure in the deep learning field and current AI head at Facebook.

CallSign specializes in developing an online transaction platform that pioneers digital trust. Utilizing proprietary technology, it mimics human identification methods, offering high-fidelity AI-based user recognition with minimal friction.

DISC Holdings Limited is a company focused on developing mobile blockchain-based payment applications aimed at facilitating fiat transactions for unbanked and underbanked citizens in the United Kingdom. Founded in 2015 and based in Cobham, the company was previously known as GovCoin Limited before rebranding in January 2017. DISC Holdings specializes in creating a secure platform that enables the trusted exchange of data, thereby reducing costs and enhancing security. This platform empowers individuals to maintain control over the ownership and use of their transaction and identity information. As of June 2018, DISC Holdings operates as a subsidiary of Rivetz Corp.