The deal takes the partnership between the two into an eighth season and could chalk up double figures, making this another long-standing sponsorship for the NPL.
"We have a proud track record of retaining sponsors and working closely with them to drive return on investment," said NPL chairman Mark Harris.
"The league and our clubs devote a great deal of time and energy to promoting the sponsorship through our website, social media and - this season - our NPLTV match highlights programme. The best form of recognition we could have is the financial input from major sponsorships like this, so we are delighted to be continuing to work with EVO-STIK."
The new deal will bring a slight name change to all three NPL divisions. The competition's branding is simplified to The EVO-STIK League, with the individual divisions named the EVO-STIK League Premier, EVO-STIK North and EVO-STIK South.
Commenting on the deal, Dale Poulton, commercial director of Bostik UK, said: “We have a proven relationship with this tier of football and believe it is an ideal platform to generate awareness for EVO-STIK. This is a very important part of our marketing activity, and the extension of the deal shows our continued investment in the brand."