CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the use in this Registration Statement on Form S-1 of Sigma Labs, Inc. of our report dated April 17, 2018, relating to our audit of the December 31, 2017 financial statements, appearing in the Prospectus, which is part of this Registration Statement.

We also consent to the reference to our firm under the caption “Experts” in such Prospectus.

/s/ Haynie & Company

Haynie & Company
Salt Lake City, Utah
May 2, 2018