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Robby Greenfield

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Adapted from the English Wikipedia article Robby Greenfield, available under CC BY-SA 4.0Updated 8 August 2025
Robby Greenfield
Born
Robert Thomas Greenfield IV

Atlanta, Georgia, U.S.
Occupation(s)Entrepreneur, advocate, philanthropist, former collegiate athlete
Years active2011–present
Known forFounder of Umoja Labs (formerly Emerging Impact); Head of Social Impact at ConsenSys; co-founder of ConsenSys Social Impact

Robert Thomas Greenfield IV, commonly known as Robby Greenfield, is an American entrepreneur, advocate, philanthropist, and former collegiate athlete. He is the founder of the financial technology firm Umoja Labs, previously known as Emerging Impact. Additionally, he held the position of Head of Social Impact at ConsenSys, where he co-established its charitable branch, ConsenSys Social Impact.

Early life

Originating from Atlanta, Georgia, Greenfield attended The Westminster Schools in Atlanta. During his time there, he participated in soccer and track and field events. As a sophomore, he secured the 2011 GHSA State Soccer Championship and also earned a state title in track.

Education

In 2015, Greenfield completed his Bachelor of Science in industrial engineering at the University of Michigan, where he also played on the varsity soccer team. He took on leadership roles such as serving as treasurer for the Black Student Union and contributed to organizing the 2013 social media campaign Being Black at Michigan (#BBUM). Later, in 2020, he obtained an MBA from Goizueta Business School at Emory University.

Career

Greenfield's entry into blockchain began during his junior year at the University of Michigan when he launched an online cryptocurrency trading platform. He also co-founded Nomsy, an app development company that produced a food discovery application featuring dietary details.

Following graduation, he gained professional experience at Cisco, Amazon, and Goldman Sachs.

Subsequently, he was appointed Head of Social Impact at ConsenSys and co-founded its philanthropic division, ConsenSys Social Impact, leveraging blockchain technology and education to empower marginalized communities worldwide.

As a proponent of blockchain technology, Greenfield played a key role in initiating scholarship programs such as Black Girls CODE’s inaugural blockchain project.

In 2018, he assumed the role of Chief Technology Officer for the Blockchain for Social Impact Coalition, which was launched with support from ConsenSys.

In 2020, Greenfield returned to Emory University to lead “Peer to Peer Master Class” sessions.

That same year marked the founding of Emerging Impact (now Umoja Labs), a fintech enterprise focused on creating blockchain solutions tailored for areas with limited access to fiat currency and mobile money services. Its primary offering, Umoja, serves as an open banking platform designed for mobile money developers. Emerging Impact collaborates with international NGOs such as Hope for Haiti, Care International, and the Celo Foundation to facilitate digital humanitarian assistance globally. The company was recognized as a winner in the Inclusive Fintech 50’s 2022 cohort for its efforts in promoting financial inclusion among underserved populations.

References