UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT ~~PURSUANT~~

TOPursuant to ~~SECTION~~ Section 13 ORor 15(d) of OFthe ~~THE~~Securities Exchange Act of 1934

~~SECURITIES~~Date ~~EXCHANGE~~of ~~ACT~~Report OF(Date ~~1934~~of earliest event reported): April 29, 2008

~~Date of report (Date of earliest event~~SI ~~reported): September~~International ~~27, 2007~~Inc.

SI(Exact ~~International,~~Name ~~Inc.~~of Registrant as Specified in its Charter)

(Exact Name of Registrant as Specified in Its Charter)

Delaware	000-50080	52-2127278
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification Number)

12012 Sunset Hills Road
8^th Floor
Reston, Virginia		20190
(Address of Principal Executive Offices)		(Zip Code)

Delaware		000-50080		52-2127278
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification Number)

Registrant’s Telephone Number, including Area Code: (703) 234-7000

12012 Sunset Hills Road
8th Floor
Reston, Virginia		20190
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (703) 234-7000

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 52.0302 Results ~~Amendments to Articles~~ of ~~Incorporation~~Operations orand Financial ~~Bylaws; Change in Fiscal Year~~Condition.

On ~~September~~April 29, 272008, ~~2007,~~ ~~the Board of Directors (the “Board”) of~~ SI International, Inc. (the “Company”) ~~approved~~ anissued ~~amendment~~a topress ~~Section~~release ~~5.1,~~announcing ~~Stock~~financial ~~Certificates~~results ~~and~~for ~~Transfers, of the~~its ~~Company’s~~fiscal ~~Amended~~first ~~and~~quarter ~~Restated~~ended ~~Bylaws~~March 29, ~~(the Amended and Restated Bylaws~~2008, as ~~amended,~~ ~~shall~~well ~~henceforth be referred to~~ as ~~the~~reissuing ~~“Second Amended and Restated~~its ~~Bylaws”). As~~earnings ~~amended,~~guidance ~~Section~~for ~~5.1 permits~~ the ~~Company~~second toquarter ~~issue~~and ~~uncertificated~~full ~~shares~~year of ~~any~~fiscal ~~class or series of the Company capital stock in compliance with NASDAQ Rule 4350(1)~~2008. ~~NASDAQ~~Such ~~Rule~~press ~~4350(l)~~release ~~requires~~is ~~that~~incorporated ~~all~~by ~~NASDAQ-listed~~reference ~~securities~~from beExhibit 99.1 ~~eligible~~ to ~~participate~~this inForm 8-K aand ~~Direct~~is ~~Registration Program~~furnished ~~that allows investors’ ownership of Company stock~~ to, ~~be recorded and~~but ~~maintained~~not onfiled ~~the books of the issuer or transfer agent without the issuance of a physical stock certificate. In accordance~~ with, the ~~provisions of the Company’s Certificate of Incorporation and applicable Delaware law, stockholder approval of this amendment to Section 5~~Commission.~~1 was not required.~~

~~The~~Item ~~foregoing description of the amendment to Section 5~~9.1,01 Financial ~~Stock~~Statements ~~Certificates~~ and ~~Transfers,~~ ~~is qualified in its entirety by reference to Section 5~~Exhibits.~~1 in the Second Amended and Restated Bylaws, a copy of which is filed as Exhibit 3.2 to this Current Report on Form 8-K and is incorporated herein by reference.~~

~~Item 9.01 Financial Statements and~~ (d) Exhibits.

(d) Exhibits.

Exhibit Number		Exhibit

99.1		Press Release dated April 29, 2008

3The above-referenced statements may contain forward-looking statements that are made pursuant to the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995.2 ~~Second~~Expressions ~~Amended~~of future goals, financial information or reporting, and similar expressions reflecting something other ~~Restated~~than ~~Bylaws~~historical fact are intended to identify forward-looking statements, but are not the exclusive means of SIidentifying ~~International~~such statements. These forward-looking statements may involve a number of risks and uncertainties, which ~~Inc~~are described in the Company’s filings with the Securities and Exchange Commission. These risks and uncertainties include: changes in federal government (or other applicable) procurement laws, regulations, policies and budgets; risks relating to contract performance; changes in the risks associated with the competitive process or environment (including as a result of bid protests); and the important factors discussed in the Risk Factors section of the annual report on Form 10-K filed by the Company with the Securities and Exchange Commission and available directly from the Commission at www.sec.gov. The actual results may differ materially from any forward-looking statements due to such risks and uncertainties. The Company undertakes no obligations to revise or update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this release.

The above-referenced statements may contain forward-looking statements that are made pursuant to the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995. Expressions of future goals, financial information or reporting, and similar expressions reflecting something other than historical fact are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. These forward-looking statements may involve a number of risks and uncertainties, which are described in the Company’s filings with the Securities and Exchange Commission. These risks and uncertainties include: changes in federal government (or other applicable) procurement laws, regulations, policies and budgets; risks relating to contract performance; changes in the risks associated with the competitive process or environment (including as a result of bid protests); and the important factors discussed in the Risk Factors section of the annual report on Form 10-K filed by the Company with the Securities and Exchange Commission and available directly from the Commission at www.sec.gov. The actual results may differ materially from any forward-looking statements due to such risks and uncertainties. The Company undertakes no obligations to revise or update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this release.2

2SIGNATURES

~~SIGNATURES~~Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

~~Pursuant to~~SI ~~the requirements of the Securities Exchange Act of 1934~~International, ~~the~~Inc. ~~registrant~~By: ~~has duly~~/s/ ~~caused~~Thomas ~~this~~E. ~~report~~Dunn toThomas beE. ~~signed~~Dunn onExecutive ~~its~~Vice ~~behalf~~President, byChief ~~the~~Financial ~~undersigned~~Officer ~~hereunto duly~~and ~~authorized.~~Treasurer

~~SI International, Inc. By~~Dated: ~~/s/ Thomas E. Dunn Thomas E. Dunn Executive Vice President~~April 29, ~~Chief Financial Officer and Treasurer~~2008

~~Dated: October 2, 2007~~3

3INDEX TO EXHIBITS

Exhibit Number		Exhibit

99.1		Press Release dated April 29, 2008

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