EXHIBIT A JOINT FILING AGREEMENT
EXHIBIT A
The undersigned agree that this Ninth Amendment dated December 16, 2009, relating to Argyle
Security, Inc., shall be filed on behalf of the undersigned.
| MEZZANINE MANAGEMENT FUND IV A, L.P. |
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| By: | /s/ Xxxxxxxxxxx X. Xxxxxx | |||
| Name: | Xxxxxxxxxxx X. Xxxxxx | |||
| Title: | Authorized Signatory | |||
| MEZZANINE MANAGEMENT FUND IV COINVEST A, L.P. |
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| By: | /s/ Xxxxxxxxxxx X. Xxxxxx | |||
| Name: | Xxxxxxxxxxx X. Xxxxxx | |||
| Title: | Authorized Signatory | |||
| MEZZANINE MANAGEMENT LIMITED |
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| By: | /s/ Xxxxxxxxxxx X. Xxxxxx | |||
| Name: | Xxxxxxxxxxx X. Xxxxxx | |||
| Title: | Authorized Signatory | |||
