Exhibit 1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock, par value $0.0001 per share, of Infrastructure and Energy Alternatives, Inc. (f/k/a M III Acquisition Corp.), and further agree that this Joint Filing Agreement be included as an Exhibit to such joint filing. In evidence thereof, the undersigned hereby execute this Agreement.

Dated: February 14, 2019

Scott Miller

Greenhaven Road Investment Management, LP

MVM Funds, LLC

Greenhaven Road Capital Fund 1, L.P.

Greenhaven Road Capital Fund 2, L.P.

By: /s/ Scott Miller

Scott Miller, for himself and as the
Managing Member of the General
Partner (for itself and on behalf of
the Funds and the Investment
Manager)