Roughly 3,000 people flocked to the Marriott Oakland City Center this week for a business conference that, in many ways, was just like any other. Businesses set up booths in a vast expo room, and business executives hosted panels about marketing, funding, business policy and leadership.

Unlike the countless other business summits that come to the Bay Area each year, every one of these attendees and presenters wanted to talk about marijuana.

Welcome to the largest cannabis business summit in the country. The Cannabis Business Summit and Expo, hosted by the National Cannabis Industry Association, is in its third year but first in the Bay Area, having touched down in cannabis-friendly Denver the past two years. It runs through Wednesday.

“It’s reflective of the historic role that California will be playing (in this industry) and the excitement for the potential,” said Taylor West, deputy director of the association, of moving the conference to Oakland.