The following firms are believed to presently make a market in Gladstone Capital Corporation stock on the NASDAQ
| Company | Phone | Address |
| Automated Trading Desk Financial Services, LLC | ||
| B-Trade Services, LLC | 48th Floor | |
| Citadel Derivatives Group LLC | 32nd Floor | |
| Citigroup Global Markets Holdings Inc. | 38th Floor | |
| E*TRADE Capital Markets, LLC | 440 South LaSalle Street, Suite 3030 | |
| Ferris, Baker Watts, Inc. | Ninth Floor | |
| Friedman, Billings, Ramsey & Co., Inc. | ||
| Goldman, Sachs & Co. | ||
| Jefferies & Company, Inc. | 12th Floor | |
| Knight Equity Markets, LP | ||
| Lehman Brothers Inc. | ||
| Merrill Lynch, Pierce, Fenner & Smith | 250 Vesey Street | |
| Morgan Stanley & Co., Incorporated | ||
| RBC Capital Markets Corporation | 60 South 6th Street, P. O. Box 1160 | |
| Scott & Stringfellow, Inc. | ||
| Stifel, Nicolaus & Company, Inc. | 501 North Broadway | |
| Susquehanna Capital Group | Suite 220 | |
| UBS Securities, LLC | Sixth Floor | |
| Wachovia Capital Markets, LLC | Eighth Floor |