4 Site Engineering — CIS | Construction Information Systems

Headquarters

58 Janet Street
PORT JEFFERSON, NY 11776

About CIS

Win more work with better intelligence

CIS tracks public and private construction across NJ, NYC, Long Island, Lower Hudson Valley, Eastern PA & DE — delivering early project visibility, bid updates, and competitive insights daily. Know what's coming before your competition does.

Early insights on public & private projects
Real-time bid updates & scope changes
GC, Sub & Planholder visibility
Competitive bidding history & insights

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"Their website has the most accurate & up-to-date information when compared to the others out there. I highly recommend their service."

— Jerry Russano