FOR IMMEDIATE RELEASE:
April 23, 2007

Contact
Tom McHale, Senior Vice President, Finance (301) 951-6122
Amanda Cuthbertson, Director, Investor Relations (301) 951-6122

AMERICAN CAPITAL WILL REPORT Q1 2007 RESULTS ON MAY 1
Shareholder Call Scheduled for May 2

Bethesda, MD - April 23, 2007 - American Capital Strategies Ltd. (Nasdaq:ACAS) announced today it will report first quarter 2007 earnings on Tuesday, May 1, 2007.  American Capital invites shareholders, prospective shareholders and analysts to attend the American Capital Shareholder Call on Wednesday, May 2 at 11:00 am ET.  The dial in number will be (877) 531-2988.  International callers should dial +1 (612) 332-0718.  Please advise the operator you are dialing in for the American Capital Shareholder Call.

Point your browser to www.ACAS.com and click on the May 2 Shareholder Call Slide Show button.

BEFORE THE CALL:
REVIEW SLIDE PRESENTATION IN ADVANCE OF THE SHAREHOLDER CALL
The quarterly shareholder presentation includes a slide presentation to accompany the call that participants may download and print prior to the call.  You may wish to take the time to review the slides in advance of the Shareholder Call.

DURING THE CALL:
VIEW STREAMING SLIDE PRESENTATION DURING THE SHAREHOLDER CALL
During the Shareholder Call you may watch and listen to the webcast or listen to the Shareholder Call by phone and step through the slides at your own pace.

AFTER THE CALL:
LISTEN AND VIEW AUDIO SLIDE PRESENTATION AFTER THE CALL
The audio of the Shareholder Call combined with the slide presentation will be made available after the call on May 2 on our website.  An archive of our audio and slide presentations of our quarterly shareholder calls can be found in the Investor Relations section of our website at www.ACAS.com.

AUDIO ONLY PRESENTATION AVAILABLE AFTER THE SHAREHOLDER CALL:
There will be a phone recording available from 9:30 pm Wednesday, May 2 until 11:59 pm Friday, May 18.  If you are interested in hearing the recording of the presentation, please dial (800) 475-6701.  International callers may dial +1 (320) 365-3844.  The access code for both domestic and international callers is 869953.

For further information or questions, please do not hesitate to call our Investor Relations Department at (301) 951-6122.

ABOUT AMERICAN CAPITAL

American Capital is the second largest U.S. publicly traded alternative asset manager with approximately $11 billion in assets under management (second to Fortress (NYSE: FIG)).  American Capital, both directly and through its global asset management business, is an investor in management and employee buyouts, private equity buyouts, and early stage and mature private and public companies.  American Capital provides senior debt, mezzanine debt and equity to fund growth, acquisitions, recapitalizations and securitizations.  American Capital and its affiliates invest from $5 million to $800 million per company in North America and €5 million to €400 million per company in Europe.

As of March 31, 2007, American Capital shareholders have enjoyed a total return of 592% since the Company's IPO - an annualized return of 22%, assuming reinvestment of dividends.  American Capital has paid a total of $1.6 billion in dividends and paid $23.33 dividends per share since going public in August 1997 at $15 per share.

Companies interested in learning more about American Capital's flexible financing should contact Mark Opel, Senior Vice President, Business Development, at (800) 248-9340, or visit www.AmericanCapital.com or www.EuropeanCapital.com.

Performance data quoted above represents past performance of American Capital. Past performance does not guarantee future results and the investment return and principal value of an investment in American Capital will likely fluctuate. Consequently, an investor's shares, when sold, may be worth more or less than their original cost. Additionally, American Capital's current performance may be lower or higher than the performance data quoted above.

This press release contains forward-looking statements. The statements regarding expected results of American Capital are subject to various factors and uncertainties, including the uncertainties associated with the timing of transaction closings, changes in interest rates, availability of transactions, changes in regional, national or international economic conditions, or changes in the conditions of the industries in which American Capital has made investments.