HAVERHILL — A Merrimack Valley Chamber of Commerce Business Networking & Referral Mixer will be held from 5 to 7 p.m. at The Tap, 100 Washington St.
The cost for members is $10; nonmembers, $20.
DERRY — Greater Derry Londonderry Chamber of Commerce will host Lunch & Learn with Moonlight Meadery from 11:45 a.m. to 1:15 p.m. at the chamber office, 29 W. Broadway.
Each Lunch & Learn features an entertaining and informative presentation from a chamber member on a topic of their expertise.
The event is catered by Red Arrow Diner of Londonderry. Cost for members is $5; nonmembers, $10. Information/registration visit gdlchamber.org.