EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration  Statements  (No.  333-127803,  No. 161246 and No. 333-193214) on Form S-8 and in the Registration Statements (No. 333-136830 and No. 333-129336) on Form S-3 of ENGlobal Corporation of our report dated March 12, 2015, relating to our audit of the consolidated financial statements, which appear in  the Annual Report on Form 10-K of ENGlobal Corporation for the year ended December 27, 2014.

Hein & Associates LLP

Houston, Texas

March 12, 2015