Invitae (NVTAQ) S-4 Registration of securities issued in business combination transactions

Exhibit 23.3

September 11, 2017

CombiMatrix Corporation

300 Goddard, Suite 100

Irvine, CA 92618

We hereby consent to the references to our name contained in the prospectus that forms a part of the Registration Statement onForm S-4 of Invitae Corporation. In giving such consent, we do not admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended (the “Securities Act”), or the rules and regulations promulgated thereunder, nor do we admit that we are experts with respect to any part of such Registration Statement within the meaning of the term “experts” as used in the Securities Act or the rules and regulations promulgated thereunder.

Very truly yours,

/s/ Tim C. Opler, Ph.D.

Representative

Torreya Capital