Currently he is the co-CEO of BDT & MSD Partners, a merchant bank that provides advice and capital to family and founder-led companies.

[3] His father, Curt, worked in finance, spending 25 years of his career with Merrill Lynch & Co.. Lemkau’s sister, Kristin, is the CEO of the wealth management arm of J.P. Morgan Chase, and his brother, Chip, is a managing director at Goldman Sachs.

[7] Instead, he worked as a paralegal at Skadden, Arps, Slate, Meagher & Flom,[3] before ultimately deciding to pursue a career in investment banking.

In 2008, Lemkau moved to London to become the co-head of technology, media, and telecom investment banking.

He advised on hundreds of transactions,[8] brokering deals for high-profile professionals including Elon Musk, Travis Kalanick,[3] Marc Benioff,[1] and Daniel Ek.

[3] In 2023, MSD Partners, run by Lemkau, merged with merchant bank BDT & Company, led by Byron Trott.

[19] In 2015, Gregg and Kate Lemkau donated $2 million to Dartmouth to establish the Bobby Clark Head Coach of Men’s soccer position.