Production Companies
- Wolf Films
- Studios USA Television (in association with) (seasons 1-3)
- Universal Network Television (in association with) (seasons 4-5)
- NBC Universal Television (in association with) (seasons 6-8)
- Universal Media Studios (UMS) (seasons 8-12)
- Universal Television (season 13-)
Distributors
- National Broadcasting Company (NBC) (1999-) (USA) (TV)
- Canadian Television (CTV) (1999-) (Canada) (TV)
- USA Network (2003-) (USA) (TV) (repeats)
- Universal Domestic Television (1999-) (USA) (TV)
- Universal Studios Home Video (2003) (USA) (DVD) (season 1)
- Universal Studios Home Entertainment (2004-) (USA) (DVD) (season 2-)
- Hallmark Channel, The (2000-) (UK) (TV)
- Five (1997-) (UK) (TV)
- Five US (2010) (UK) (TV)
- TV3 Television Network Ireland (2000-) (Ireland) (TV)
- Network Ten (2001-) (Australia) (TV)
- Télévision Française 1 (TF1) (2000-) (France) (TV) (original airing) (dubbed version) (edited censored version)
- 13th Street Universal (2010-2013) (Belgium) (TV) (limited) (season 6-9) (repeats)
- 13th Street Universal (2010-2013) (Netherlands) (TV) (limited) (season 6-9) (repeats)
- Austria 9 (2009-2010) (Austria) (TV) (seasons 2 and 3)
- CNBC-e (2013) (Turkey) (TV)
- DiziMax (Turkey) (TV)
- Fox Classics (2015) (Japan) (TV)
- Fox Crime (2007) (Japan) (TV)
- Hallmark Channel Magyarország (2008) (Hungary) (TV) (seasons 3 & 4)
- Net5 (Netherlands) (TV)
- Puls 4 (2009-) (Austria) (TV) (season 4-)
- RTL2 (2005-2010) (Germany) (TV) (seasons 1-10)
- TV2 (2007-) (Hungary) (TV)
- Universal Channel (Turkey) (TV)
- Universal Pictures Benelux (2004) (Netherlands) (DVD)
- Universal Pictures (2010) (Germany) (DVD) (season one)
- Universal Pictures (2014) (Germany) (DVD) (season two)
- Universal Studios Home Entertainment (2008) (USA) (DVD) (season 7)
- Universal Studios Home Entertainment (2009) (USA) (DVD) (seasons 9 and 10)
- Universal Studios Home Entertainment (2010) (USA) (DVD) (season 11)
- Universal Studios Home Entertainment (2011) (USA) (DVD) (season 12)
- Viasat3 (2009-) (Hungary) (TV) (season 5-)
- Vox (2011-) (Germany) (TV) (season 11-)
Other Companies
- Panavision (Panavision Genesis® camera equipment provided by)
- West (promotional consideration furnished by) (as West, A Thomson Reuters Business)
- Audio Network (additional music)
- Central Casting (extras casting)
- Filmtools (expendables)
- Lost Soul Entertainment (picture cars)
- Post Group Production Suites, The (high-definition post-production services) (uncredited)
- ShowBiz Enterprises (draperies) (uncredited)
- Soundtrack New York (adr facility)
- Studio Line (post-production facilities) (ADR)
