DC area: Tomorrow, June 28, the no-cost DC Startup & Tech Expo 2017 takes place in Arlington, VA.
The 4pm to 8pm event is hosted by TechBreakfast, and has over 100 startups and tech companies participating.
There are four types of free attendee tickets, and two sponsor-type options. The attendee types are: General Admission, Job Seeker, Investor, & Press.
Here is the link for attendee & other tickets… thousands of attendees are projected in one of the largest of this type of event in the DC area.