- 1st Auto Transport Directory Acquired By Dealertrack Technologies
- 1ST Bancorp IN Acquired By German American Bancorp
- 1st Bank Acquisitions
- 1st BASE - Oligonucleotide Business Acquired By Integrated DNA Technologies
- 1st BASE Pte Acquisitions
- 1st Choice Courier and Distribution Acquired By Northern Pacific Group
- 1st Choice Hollywood Smiles Acquired By Northwestern Management Services
- 1st Credit Acquired By Intrum Justitia AB
- 1ST Group Acquisitions
- 1st Holdings Acquired By Monolith Holdings
- 1st Independence Financial Group Acquired By MainSource Financial Group
- 1st National Bank of Scotia Acquisitions
- 1st Pacific Bank of California Acquired By City National
- 1st Portfolio Holding Acquired By WashingtonFirst Bankshares
- 1st United Bancorp Acquisitions
- 1st West Mergers & Acquisitions LLC
- 1stdibs.Com Acquisitions
- 1StopXBRL Acquired By Diversified Global Graphics Group
- 1Ticket Acquired By DTI Management
- 1to1 Card Acquired By SVM
- 1Vault Networks Acquired By Peak 10
- 2 Sisters Food Group Acquisitions
- 2-10 Home Buyers Warranty Acquired By Brera Capital Partners
- 2-20 Records Management Acquisitions
- 2-DTech Acquired By Versarien
- 20 VIC Management Acquired By Cushman & Wakefield
- 20-20 Technologies Acquired By Golden Gate Capital
- 20/20 Software Acquired By TechTarget
- 2020 Companies Acquired By Acentia
- 2020 Group USA Acquired By Panalitix Pty
- 2080 Media Acquisitions
- 20:20 Mobile Group Acquired By Brightstar
- 20:20 Retail Data Insight Acquired By StayinFront
- 20lines S.r.l. Acquired By HarperCollins Publishers
- 20|20 Research Acquisitions
- 21 Apartment Communities in Texas Acquired By Pivotal Group
- 21 Chelsea Property Acquired By UDR
- 21 Grams AB Acquisitions
- 21 Partners
- 21 Three Clothing Acquired By boohoo.com
