1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ---------- FORM 8-A/A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OneSource Information Services, Inc. ------------------------------------ (Exact name of registrant as specified in its charter) Delaware 04-3204522 -------- ---------- (State of incorporation (IRS Employer or organization) Identification No.) 150 CambridgePark Drive, Cambridge, MA 02140 -------------------------------------------- (Address of principal executive offices) (Zip Code) If this form relates to the If this form relates to the registration of a class of securities registration of a class of securities pursuant to Section 12(b) of the pursuant to Section 12 (g) of the Exchange Act and is effective Exchange Act and is effective pursuant to General Instruction pursuant to General Instruction A.(c), please check the following A.(d), please check the following box: [ ] box: [X] Securities Act registration statement file number to which this form relates: 333-73262 (If applicable) 2 Securities to be registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which to be so registered each class is to be registered ------------------- ------------------------------ None Not Applicable Securities to be registered pursuant to Section 12(g) of the Act: Common Stock, $.01 par value ---- (Title of Class) Item 1. Description of Registrant's Securities to be Registered ------------------------------------------------------- Information concerning the Registrant's Common Stock is contained in the Registrant's Form S-1 Registration Statement, filed with the Securities and Exchange Commission on March 3, 1999, as amended pursuant to the Securities Act of 1933, as amended (the "S-1 Registration Statement"), and such information is incorporated herein by reference. Item 2. Exhibits -------- Exhibit No. Exhibit - ----------- ------- 1. Form of Restated Certificate of Incorporation of the Registrant, to be filed upon closing of the offering (Incorporated by reference to Exhibit 3.01 to the S-1 Registration Statement.). 2. Amended and Restated Certificate of Incorporation of the Registrant (Incorporated by reference to Exhibit 3.02 to the S-1 Registration Statement.). 3. By-Laws, as amended and restated, of the of the Registrant (Incorporated by reference to Exhibit 3.03 to the S-1 Registration Statement.). 4. Form of Second Amended and Restated By-Laws of the Registrant, to be adopted upon closing of the offering (Incorporated by reference to Exhibit 3.04 to the S-1 Registration Statement.). 5. Specimen certificate representing the common stock (Incorporated by reference to Exhibit 4.01 to the S-1 Registration Statement.). 6. Registration Agreement among the Registrant and certain shareholders dated September 8, 1993 (Incorporated by reference to Exhibit 10.04 to the S-1 Registration Statement.). 3 SIGNATURE --------- Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized. OneSource Information Services, Inc. By: /s/ Roy D. Landon ---------------------------------------- Roy D. Landon Vice President, Finance & Administration Date: April 28, 1999