**Exhibit 31.2**

**VANGENT, INC.**

**CERTIFICATIONS**

I,Christine M. Bailey, Chief Financial Officer, certify that: 

 
| 1. |   | I have reviewed this quarterly report on  Form 10-Q for the fiscal quarter ended September 29, 2007 of Vangent, Inc.; |
|----|--------|-----------------------------------------------------------------------------------------------------------------------|

 
| 2. |   | Based on my knowledge, this quarterly  report does not contain any untrue statement of a material fact or omit to  state a material fact necessary to make the statements made, in light of the  circumstances under which such statements were made, not misleading with  respect to the period covered by this quarterly report; |
|----|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
| 3. |   | Based on my knowledge, the financial  statements, and other financial information included in this quarterly  report, fairly present in all material respects the financial condition,  results of operations and cash flows of the registrant as of, and for, the  periods presented in this quarterly report; |
|----|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
| 4. |   | The registrant’s other certifying  officer and I are responsible for establishing and maintaining disclosure  controls and procedures (as defined in Exchange Act Rules 13a-15(e) and  15d-15(e)) for the registrant and we have: |
|----|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
|   |   | a) | designed such disclosure controls and  procedures, or caused such disclosure controls and procedures to be designed  under our supervision, to ensure that material information relating to the  registrant, including its consolidated subsidiaries, is made known to us by  others within those entities, particularly during the period in which this  report is being prepared; and |
|--------|--------|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
|   |   | b) | evaluated the effectiveness of the  registrant’s disclosure controls and procedures and presented in this report  our conclusions about the effectiveness of the disclosure controls and  procedures, as of the end of the period covered by this report based on such  evaluation; and |
|--------|--------|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
|   |   | c) | disclosed in this report any change in  the registrant’s internal control over financial reporting that occurred  during the registrant’s most recent fiscal quarter (the registrant’s fourth  fiscal quarter in the case of an annual report) that has materially affected,  or is reasonably likely to materially affect, the registrant’s internal  control over financial reporting; |
|--------|--------|----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
| 5. |   | The registrant’s other certifying  officer and I have disclosed, based on our most recent evaluation of internal  control over financial reporting, to the registrant’s auditors and the audit  committee of the registrant’s board of directors (or persons performing the  equivalent functions): |
|----|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
|   |   | a) | all significant deficiencies and  material weaknesses in the design or operation of internal controls over  financial reporting which are reasonably likely to adversely affect the  registrant’s ability to record, process, summarize and report financial  information; and |
|--------|--------|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 
|   |   | b) | any fraud, whether or not  material, that involves management or other employees who have a significant  role in the registrant’s internal control over financial reporting. |
|--------|--------|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 

Date:November 9, 2007 
|        | /s/ Christine M. Bailey                                                     |   |
|--------|-----------------------------------------------------------------------------|--------|
|   |                                                                        |
|        | Christine M. Bailey  Chief Financial Officer  (Principal Financial Officer) |

 

----