FORM 4

o Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

(Print or Type Responses)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF
CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response .... 0.5

Name and Address of Reporting Person*

Issuer Name and Ticker or Trading Symbol

Relationship of Reporting Person(s) to Issuer
(Check all applicable)

Marsh

Thomas

SI International, Inc. (SINT)

X Director

10% Owner

(Last)

(First)

(Middle)

I.R.S. Identification Number of Reporting Person, if an entity (Voluntary)

Statement for
Month/Day/Year

Officer
(give title below)

Other
(specify below)

8484 Westpark Drive, Suite 630

11/22/02

(Street)

If Amendment, Date of Original (Month/Year)

Individual or Joint/Group Filing
(Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than

McLean

22102

One Reporting Person

(City)

(State)

(Zip)

Table I — Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

Title of Security
(Instr. 3)

Transaction Date
(Month/Day/Year)

2A.

Deemed Execution Date, if any
(Month/Day/Year)

Transaction Code
(Instr. 8)

Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)

Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)

Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)

Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

Amount

(A) or (D)

Price

Common Stock

11/22/02

J (1)

8,787

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

Potential persons who are to respond to the collection of information contained in this form are not required to respond
unless the form displays a currently valid OMB control number.

(Over)
SEC 1474 (3-00)

FORM 4 (continued)

Table II — Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

Title of Derivative Security
(Instr. 3)

Conversion or Exercise Price of Derivative Security

Transaction Date
(Month/Day/Year)

Transaction Code
(Instr. 8)

Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)

Date Exercisable and Expiration Date
(Month/Day/Year)

Code

(A)

(D)

Date
Exercisable

Expiration
Date


7.	Title and Amount of Underlying Securities (Instr. 3 and 4)		8.	Price of Derivative Security (Instr. 5)	9.	Number of derivative Securities Beneficially Owned at End of Month (Instr. 4)	10.	Ownership Form of Derivative Security Direct (D) or Indirect (I) (Instr. 4)	11.	Nature of Indirect Beneficial Ownership (Instr. 4)

	Title	Amount or Number of Shares

Explanation of Responses:
(1) Pro rata distribution of shares of common stock held by SI International, L.L.C. to unitholders of SI International, L.L.C.

/s/ R. Thomas Marsh		11/22/02
**Signature of Reporting Person		Date

**		Intentional misstatements or omissions of facts constitute Federal Criminal Violations. *See* 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:		File three copies of this Form, one of which must be manually signed. If space is insufficient, *See* Instruction 6 for procedure.
Potential persons who are to respond to the collection of information contained in this form are not required to respond Page 2 unless the form displays a currently valid OMB Number.

SI INTERNATIONAL INC 4