NEW YORK, April 9, 2013 /PRNewswire-FirstCall/ — The McGraw-Hill Companies (NYSE: MHP) announced today that its first quarter 2013 results will be issued on Tuesday, April 30, 2013 via news release at approximately 7:15 a.m. Eastern Time. The news release will be available for downloading from www.mcgraw-hill.com.

Harold McGraw III, Chairman, President and CEO; Jack Callahan, Executive Vice President and CFO; and Chip Merritt, Vice President, Investor Relations, will host a conference call/webcast at 8:30 a.m. Eastern Time on April 30, 2013 to discuss the first quarter results. The presentation is open to all interested parties and may include forward-looking information.

Webcast Instructions: Live and Replay
The webcast will be available live and as an archived replay through the Corporation's Investor Relations Web site at http://investor.mcgraw-hill.com/phoenix.zhtml?c=96562&p=irol-EventDetails&EventId=4940393. (Please copy and paste URL into Web browser.) The archived replay will be available beginning two hours after the conclusion of the live call and will remain available for one year.

Pre-Registration Option for Telephone Participants (Not Required)
A new pre-registration option is being made available for those who wish to bypass the queue when joining the actual earnings call. Participants may pre-register up to one hour before the start of the call. Go to https://www.mymeetings.com/emeet/rsvp/index.jsp?customHeader=mymeetings&Conference_ID=9521408&passcode=3044525 and choose Web RSVP under Join Events. Enter the conference number, 9521408, and passcode, 3044525, along with the participant's name, title, company, and email address. A confirmation and PIN access code will be sent via email.

Telephone Access: Live and Replay
The call begins at 8:30 a.m. Eastern Time. Please dial in by 8:20 a.m.

For callers in the U.S.: (888) 391-6568 For callers outside the U.S.: +1 (415) 228-4733 (long distance charges will apply) The conference number is 9521408 and the passcode is 3044525 Participants who are pre-registered should enter the PIN number provided in their email confirmation

The recorded telephone replay will be available beginning two hours after the conclusion of the call and will remain available until May 30, 2013.

For callers in the U.S.: (866) 383-2997 For callers outside the U.S.: +1 (203) 369-0378 (long distance charges will apply)

Presenters' Slides & Remarks
The presenters' slides will be made available for downloading at the conclusion of the call. The final remarks will be available for downloading the following day. For these documents and any additional information provided during the presentation, go to http://investor.mcgraw-hill.com/phoenix.zhtml?c=96562&p=irol-EventDetails&EventId=4940393.

About The McGraw-Hill Companies: The McGraw-Hill Companies, to be renamed McGraw Hill Financial (subject to shareholder approval), is a powerhouse in credit ratings, benchmarks and analytics for the global capital and commodity markets. Leading brands include: Standard & Poor's Ratings Services, S&P Capital IQ, S&P Dow Jones Indices, Platts, CRISIL, J.D. Power and Associates, McGraw-Hill Construction and Aviation Week. The Company has approximately 17,000 employees in 27 countries. Additional information is available at www.mcgraw-hill.com.