Exhibit 23.3
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We have issued our report dated March 1, 2021 with respect to the financial statements of Lightning Systems Inc. for the years ended December 31, 2020 and December 31, 2019, which are incorporated by reference in this Registration Statement. We consent to the incorporation by reference of the aforementioned report in this Registration Statement.
/s/ GRANT THORNTON LLP
Denver, Colorado
July 12, 2021
