dkDidi Kuaidi, the Uber of China, worked with Sard Verbinnen & Co. and Brunswick Group on PR for its $100M tie-up with San Francisco-based ride-sharing service Lyft.

The deal brings Lyft to the China market and gives Didi Kuaidi a stake in the company alongside Andreessen Horowitz, Alibaba and Carl Icahn, among others.

Lyft president John Zimmer noted DK is "the clear market leader in China and has invaluable local expertise."

Sard Verbinnen's San Francisco office advises DK stateside, while Brunswick handles overseas PR duties.

Forbes this month called DK "Uber's mortal enemy."

The OutCast Agency works with Lyft on the PR front.