Skulduggery
- Custom murder mystery evenings and weekends around the UK.
- http://www.murderbyskulduggery.co.uk/

Murder on the Menu
- Murder mysteries for corporate hospitality, dinner parties and weekend events.
- http://www.murderonthemenu.co.uk

Murder by Accident (Accidental Productions)
- Specialising in Murder Mystery production. Also offering game shows, treasure hunts, Dracula Hunt and more. Based in the UK.
- http://www.accidental.co.uk

Top Drawer Productions
- Events performed for up to 120 guests. Guests help solve the mystery. Based in the UK.
- http://www.murderinmind.co.uk/

Art Deco Murders
- Murder mystery company offering themed events set in the 1920's. Available for corporate or private functions.
- http://artdecoproductions.co.uk/

Team Building USA
- Provides team building activities through corporate mystery games and facilitates group discussion afterwards.
- http://www.teambuildingusa.com/murder-mystery-team-building-activity.asp

Murder by Appointment
- Murder mystery organizers offering individually scripted events. Based in the UK.
- http://www.murderbyappointment.org.uk/

Murder Me Nicely
- Personalized murder mysteries utilizing information gleaned from your guests. Based in the UK.
- http://www.murdermystery.co.uk

Murder Unlimited
- Interactive productions by a mystery theatre and comedy improv troupe from Vancouver, BC.
- http://www.murderunlimited.com/

The Original Murder Company
- Former police officers present real-life murder mysteries while guests implement investigation skills.
- http://www.original-murder.co.uk/

The Creative Edge
- Murder mystery events for conferences and company parties.
- http://www.creativeedge.us/

Killing Time
- Provides murder mystery entertainment for private and corporate groups within the United States.
- http://www.killingtime.com/

Moneypenny Productions
- Murder mystery evenings and weekends in the UK and Europe.
- http://www.moneypennyproductions.co.uk/

Wild Bills Interactive Events
- Provides murder mystery events in Oregon and Washington.
- http://www.wildbills.com

True View Events
- Murder mystery event management in the UK.
- http://www.trueviewevents.co.uk

Murder Mystery Events
- Murder mysteries performed for corporate events. Based in the UK.
- http://www.murder-mystery-events.com

Initiative Unlimited
- Murder mysteries, spy games, mafia nights, and other team building games for corporate events.
- http://www.mayhem.org.uk/