Document:

NUMBER                                                  SERIES B UNITS
U-_______________

 SEE REVERSE FOR CERTAIN         JUNIPER PARTNERS ACQUISITION CORP.
       DEFINITIONS

                                                               CUSIP ___________

  SERIES B UNITS CONSISTING OF TWO SHARES OF CLASS B COMMON STOCK, ONE CLASS W
    WARRANT TO PURCHASE ONE SHARE OF COMMON STOCK AND ONE CLASS Z WARRANT TO
                       PURCHASE ONE SHARE OF COMMON STOCK

THIS CERTIFIES THAT ____________________________________________________________

is the owner of ________________________________________________ Series B Units.

Each Series B Unit ("Series B Unit") consists of two (2) shares of Class B
common stock, par value $.0001 per share ("Class B Common Stock"), of Juniper
Partners Acquisition Corp., a Delaware corporation (the "Company"), one (1)
Class W Warrant (the "Class W Warrant") and one (1) Class Z Warrant (the "Class
Z Warrant"). Each Class W Warrant and Class Z Warrant entitles the holder to
purchase one (1) share of common stock, par value $.0001 per share (the "Common
Stock") for $5.00 per share (subject to adjustment). Each Class W Warrant and
Class Z Warrant will become exercisable on the later of Company's completion of
a business combination and [_____], 2006. The Class W Warrants will expire
unless exercised before 5:00 p.m., New York City time, on [_____], 2010, or
earlier upon redemption, and the Class Z Warrants will expire unless exercised
before 5:00 p.m., New York City time, on [_____], 2012, or earlier upon
redemption. The Class B Common Stock, Class W Warrants and Class Z Warrants
comprising the Series B Units represented by this certificate are not
transferable separately prior to [_____], 2005, subject to earlier separation in
the discretion of HCFP/Brenner Securities LLC. The terms of the Class W Warrants
and the Class Z Warrants are governed by a Warrant Agreement, dated as of
[_____], 2005, between the Company and Continental Stock Transfer & Trust
Company, as Warrant Agent (the "Warrant Agreement"), 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 17 Battery
Place, New York, New York 10004, and are available to any holder of Class W
Warrants and Class Z Warrants on written request and without cost.

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

     Witness the facsimile seal of the Company and the facsimile signature of
     its duly authorized officers.

                                [GRAPHIC OMITTED]
                       JUNIPER PARTNERS ACQUISITION CORP.
                                    CORPORATE
                                    DELAWARE
                                      SEAL
                                      2005

By
   -------------------------------             ---------------------------------
                         President             Secretary

                       JUNIPER PARTNERS ACQUISITION CORP.

         The Company 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 stock or series
thereof of the Company and the qualifications, limitations, or restrictions of
such preferences and/or rights.

         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:

TEN COM -    as tenants in common                           UNIF GIFT MIN ACT - _____ Custodian ______
TEN ENT -    as tenants by the entireties                                      (Cust)          (Minor)
JT TEN -     as joint tenants with right of survivorship             under Uniform Gifts to Minors
             and not as tenants in common                                  Act_______________
                                                                                (State)

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

         For value received, ___________________________ hereby sell, assign and
transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
       IDENTIFYING NUMBER OF ASSIGNEE

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

________________________________________________________________________________

________________________________________________________________________________

_________________________________________________________________ Series B Units
represented by the within Certificate, and do hereby irrevocably constitute and
appoint _______________________________________________________________ Attorney
to transfer the said Series B Units on the books of the within named Company
will full power of substitution in the premises.

Dated _____________________

                                  ----------------------------------------------
                                  NOTICE: The signature to this assignment must
                                          correspond with the name as written
                                          upon the face of the certificate in
                                          every particular, without alteration
                                          or enlargement or any change whatever.

Signature(s) Guaranteed:

---------------------------------------------------------------
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.NUMBER                                                                SHARES

                                                                   COMMON STOCK

                       JUNIPER PARTNERS ACQUISITION CORP.

              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

                                                                   CUSIP

This                                                          SEE REVERSE FOR
certifies                                                   CERTAIN DEFINITIONS
that

is the owner of

 FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, PAR VALUE $.0001 PER
                                    SHARE, OF

                       JUNIPER PARTNERS ACQUISITION CORP.

(hereinafter called the "Corporation"), transferable upon the books of the
Corporation by the holder hereof in person or by duly authorized attorney upon
surrender of this certificate properly endorsed. This certificate and the shares
represented hereby are issued under and shall be subject to all the provisions
of the Certificate of Incorporation and By-Laws of the Corporation (copies of
which are on file at the office of the Transfer Agent of the Corporation), to
all of which the holder by acceptance hereof assents.

     This certificate is not valid unless countersigned by the Transfer Agent.

     Witness the facsimile seal of the Corporation and the facsimile signatures
of its duly authorized officers.

     Dated:

COUNTERSIGNED:                    By:                       By:
                   CONTINENTAL STOCK TRANSFER & TRUST COMPANY,
                                as Warrant Agent

   Authorized Officer                 SECRETARY                  PRESIDENT

                       JUNIPER PARTNERS ACQUISITION CORP.
                                    CORPORATE
                                      SEAL
                                      2005
                                    DELAWARE
                                        *

                       JUNIPER PARTNERS ACQUISITION CORP.

     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 or each class of stock or
series thereof and the qualifications, limitations or restrictions of such
preferences and/or rights.

     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:

TEN COM - as tenants in common              UNIF GIFT MIN ACT - __________ Custodian _________
TEN ENT - as tenants by the entireties                            (Cust)              (Minor)
JT TEN  - as joint tenants with right of                        under Uniform Gifts to Minors
          survivorship and not as tenants                       Act ___________________
          in common                                                      (State)

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

  For value received, ___________________ hereby sell, assign and transfer unto

         PLEASE INSERT SOCIAL SECURITY OR OTHER
              IDENTIFYING NUMBER OF ASSIGNEE

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

________________________________________________________________________________

________________________________________________________________________________

__________________________________________________________________________shares

of the capital stock represented by the within Certificate; and do hereby
irrevocably constitute and appoint _____________________________________Attorney
to transfer the said stock on the books of the within named Corporation with
full power of substitution in the premises.

Dated ____________________

            ____________________________________________________________________
    NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS
            WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR,
            WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

Under no circumstances shall the holder of this certificate have any right or
interest of any kind in or to the funds held in that certain trust fund
established on behalf of the holders of the Corporation's Class B common stock.

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