The third Annual Mega Mixer hosted by five Santa Barbara business and hospitality organizations is plan for 5:30 to 7:30 p.m. Sept. 29 at Impact Hub, 1117 State St.

Registration online is required. Cost is $15. No tickets will be sold at the door. Some 500 men and women are expected.

Hosts are the Santa Barbara Region Chamber of Commerce, Goleta Valley Chamber of Commerce, the Downtown Organization, Visit Santa Barbara and Hospitality Santa Barbara.

Impact Hub provides collaborative work environment and event space for entrepreneurs, activists, creatives, and professionals who are taking action to drive positive social and environmental change.

The register, see https://sbchamber.chambermaster.com/eventregistration/register/757