| Name | Category | City | State |
| A B G Stella Acquistion Inc | Mergers & Acquisitions | Wilmington | DE |
| A.D.I.N.E | Mergers & Acquisitions | Biloxi | MS |
| Aaron Bell International | Mergers & Acquisitions | Denver | CO |
| ABC Advocate Business Consultant | Mergers & Acquisitions | Trinidad | CO |
| Ac Acquisition Holding Company | Mergers & Acquisitions | Wilmington | DE |
| Acquest Corporation | Mergers & Acquisitions | Levittown | NY |
| Acquisition Services Group | Mergers & Acquisitions | Spokane | WA |
| Acquisition Services Group | Mergers & Acquisitions | Portland | OR |
| Acquisition Strategies | Mergers & Acquisitions | Boston | MA |
| Acquisitions Businesses & Investments LLC | Mergers & Acquisitions | Phoenix | AZ |
| Acquitec- Inc. | Mergers & Acquisitions | Burlington | MA |
| Act Consultants Inc | Mergers & Acquisitions | Bellevue | WA |
| Act Consultants Inc | Mergers & Acquisitions | Vancouver | WA |
| AdMed Consulting Inc | Mergers & Acquisitions | Bismarck | ND |
| Advanced Business Group Inc M&A | Mergers & Acquisitions | Beverly Hills | CA |
| Aksoz and Company | Mergers & Acquisitions | Minneapolis | MN |
| Alerion Capital Group LLC | Mergers & Acquisitions | Scottsdale | AZ |
| Alewine Limited Liability CO | Mergers & Acquisitions | Salt Lake City | UT |
| Alexander Capital Markets LLC | Mergers & Acquisitions | Charlotte | NC |
| Allied Business Group- Inc. | Mergers & Acquisitions | Overland Park | KS |
| Alpha Omega Capital Partners LLC | Mergers & Acquisitions | Richmond | VA |
| Anderson Weiss Group | Mergers & Acquisitions | Seattle | WA |
| Ascent Partners Group | Mergers & Acquisitions | Seattle | WA |
| Aspenwall Company | Mergers & Acquisitions | Minneapolis | MN |
| Assayers- Inc. | Mergers & Acquisitions | Redmond | WA |