NV5 HOLDINGS, INC. UNITS CONSISTING OF ONE SHARE OF COMMON STOCK AND ONE WARRANT TO PURCHASE ONE SHARE OF COMMON STOCK

Exhibit 4.1

SPECIMEN UNIT CERTIFICATE

NUMBER         UNITS

U-

SEE REVERSE FOR CERTAIN

DEFINITIONS

CUSIP 62945V  208

NV5 HOLDINGS, INC.

UNITS CONSISTING OF ONE SHARE OF COMMON STOCK AND ONE WARRANT TO PURCHASE ONE SHARE

OF COMMON STOCK

THIS CERTIFIES THAT                                                                                        is the owner of                                          Units.

Each unit (“Unit”) consists of one (1) share of common stock, $0.01 par value per share (“Common Stock”), of NV5 Holdings, Inc., a Delaware corporation (the “Corporation”), and one (1) warrant to purchase one (1) share of Common Stock (“Warrant”). Each Warrant entitles the holder to purchase one (1) share of Common Stock for $ per share (subject to adjustment). Each Warrant will become immediately exercisable beginning on              (the “Separation Date”), and will expire on                  , 2018 or earlier upon redemption.

The shares of Common Stock and Warrants comprising the Units represented by this certificate are not transferable separately prior to the Separation Date. The terms of the Warrants are governed by a Warrant Agreement, dated as of                   , 2013, between the Corporation and Registrar and Transfer Company, as Warrant Agent, and are subject to the terms and provisions contained therein, all of which terms and provisions the holder of this certificate consents to by acceptance hereof. Copies of the Warrant Agreement are on file at the office of the Warrant Agent at 10 Commerce Drive, Cranford, New Jersey 07016, and are available to any Warrant holder on written request and without cost.

This certificate is not valid unless countersigned by the Transfer Agent and Registrar of the Corporation.

Witness the facsimile signature of its duly authorized officers.

Countersigned and Registered:

NV5 HOLDINGS, INC.

The Corporation will furnish without charge to each stockholder who so requests, a statement of the powers, designations, preferences and relative, participating, optional or other special rights of each class of shares or series thereof of the Corporation and the qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the Units represented hereby are issued and shall be held subject to the terms and conditions applicable to the securities underlying and comprising the Units.

The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations:

Additional abbreviations may also be used though not in the above list.

For value received,              hereby sell, assign and transfer unto             

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

                                                              Units represented by the within Certificate, and do hereby irrevocably constitute and appoint

                                                                                   Attorney to transfer the said Units on the books of the within named Corporation with full power of substitution in the premises.

Signature(s) Guaranteed By:

THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).