EXHIBIT A JOINT FILING AGREEMENT
EXHIBIT A
The undersigned agree that this Amendment dated January 14, 2009 relating to the common stock, par
value $0.0001, of Argyle Security, Inc. shall be filed on behalf of the undersigned.
| MEZZANINE MANAGEMENT FUND IV A | ||||||
| By: Name: |
/s/ Xxxxxx X. Xxxxxxxxxx
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| Title: | Authorized Signatory | |||||
| MEZZANINE MANAGEMENT FUND IV COINVEST A | ||||||
| By: Name: |
/s/ Xxxxxx X. Xxxxxxxxxx
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| Title: | Authorized Signatory | |||||
| MEZZANINE MANAGEMENT LIMITED | ||||||
| By: Name: |
/s/ Xxxxxx X. Xxxxxxxxxx
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| Title: | Authorized Signatory | |||||
