- Akamai Technologies — acquisition of Speedera Networks — $130,000,000
- AppIQ — acquisition by Hewlett-Packard — undisclosed
- Authoria — acquisition of Hire.com — undisclosed
- Avid — acquisition of Pinnacle Systems — $462,000,000
- BAE Systems — acquisition of United Defense Industries — $4,192,000,000 (regulatory counsel)
- BE Semiconductor — acquisition of Datacon Technology — €72,600,000
- Blackboard — acquisition of WebCT — $180,000,000
- Brooktrout — acquisition by EAS Group — $173,000,000
- Danaher — acquisition of Leica Microsystems — $550,000,000 (co-counsel)
- DoubleClick — acquisition by Hellman & Friedman — $1,100,000,000
- Eyetech Pharmaceuticals — acquisition by OSI Pharmaceuticals — $935,000,000
- Franklin Street Properties —acquisition of four REITs — $193,000,000
- FTI Consulting — acquisition of Competition Policy Associates — $70,000,000
- Genaissance Pharmaceuticals — acquisition by Clinical Data — $56,000,000
- GoldPocket Interactive — acquisition by Tandberg Television — $78,500,000
- HSBC Finance — acquisition of Metris Companies — $1,600,000,000
- IDX Systems — acquisition by GE Healthcare — $1,200,000,000
- Imagitas — acquisition by Pitney Bowes — $230,000,000
- Kadant — acquisition of The Johnson Corporation — $102,000,000
- Lionbridge Technologies — acquisition of Bowne Global Solutions from — $193,000,000
- LiveVault Corporation — acquisition by Iron Mountain — $50,000,000
- MKS — acquisition of Ion Systems — $70,000,000
- Oasis Semiconductor — acquisition by SigmaTel — $82,000,000 (including potential earnout)
- Oracle — acquisition of Siebel Systems — $5,850,000,000 (EU antitrust co-counsel)
- PerkinElmer — sale of aerospace business to Eaton — $333,000,000
- PharMetrics — acquisition by IMS Health — undisclosed
- Quallaby — acquisition by Micromuse — $40,000,000
- RSA Security — acquisition of Cyota — $145,000,000
- Sallie Mae — acquisition of GRP Financial Services — $137,000,000
- Saucony — acquisition by Stride Rite — $170,000,000
- Savient Pharmaceuticals Inc. — sale of global biologics manufacturing business to Ferring — $80,000,000
- SBC Communications — acquisition of AT&T — $16,000,000,000 (regulatory counsel)
- Spaulding & Slye — acquisition by Jones Lang LaSalle — $150,000,000 (plus earnout)
- SS&C Technologies — acquisition by The Carlyle Group — $941,000,000
- Staples — acquisition of Prime Office Products — undisclosed
- Thermo Electron Corporation — acquisition of Kendro Laboratory Products from SPX — $833,500,000
- Transkaryotic Therapies — acquisition by Shire Pharmaceuticals — $1,600,000,000
- TUI Aktiengesellschaft — acquisition of CP Ships (US and EU securities and antitrust counsel)
- Verizon Communications — acquisition of MCI — $8,500,000,000 (regulatory counsel)
- Watts Water Technologies — acquisition of Dormont Manufacturing — $94,500,000