| NORTH STAR SCIENTIFIC CORPORATION | RICHARD L. COLLINS & COMPANY, INC. | Q4 2019 | Defense |
| NAVATEK, LTD. | RICHARD L. COLLINS & COMPANY, INC. | Q4 2014 | Defense |
| GENERAL DYNAMICS CORPORATION | RICHARD L. COLLINS & COMPANY, INC. | Q1 2010 | Defense |
| OCEANIT INC | RICHARD L. COLLINS & COMPANY, INC. | Q2 2012 | Defense |
| NORTHROP GRUMMAN CORPORATION | RICHARD L. COLLINS & COMPANY, INC. | Q3 2011 | Defense |
| RAYTHEON SOLIPSYS CORPORATION | RICHARD L. COLLINS & COMPANY, INC. | Q3 2011 | Defense |
| UNITED TECHNOLOGIES CORPORATION | RICHARD L. COLLINS & COMPANY, INC. | Q2 2011 | Defense |
| TEXTRON SYSTEMS | RICHARD L. COLLINS & COMPANY, INC. | Q2 2011 | Defense |
| CUBIC CORPORATION | RICHARD L. COLLINS & COMPANY, INC. | Q2 2011 | Defense |
| ALLIANT TECHSYSTEMS INC | RICHARD L. COLLINS & COMPANY, INC. | Q1 2011 | Defense |
| HOANA MEDICAL INC | RICHARD L. COLLINS & COMPANY, INC. | Q3 2010 | Defense |
| BOEING COMPANY | RICHARD L. COLLINS & COMPANY, INC. | Q4 2010 | Defense |
| ATLANTIS CYBERSPACE | RICHARD L. COLLINS & COMPANY, INC. | Q4 2010 | Defense |
| PACIFIC MARINE | RICHARD L. COLLINS & COMPANY, INC. | Q4 2010 | Defense |
| TREX ENTERPRISES | RICHARD L. COLLINS & COMPANY, INC. | Q1 2009 | Defense |
| NATIONAL RURAL ELECTRIC COOPERATIVE ASSOCIATION | RICHARD L. COLLINS & COMPANY, INC. | Q1 2008 | Defense |
| SCIENCE APPLICATIONS INTERNATIONAL CORPORATION (SAIC) | RICHARD L. COLLINS & COMPANY, INC. | Q1 2008 | Defense |