Applause-Tickets.com
- Find Great Seats & Tickets for Musicals & Theatre Performances Playing In New York City.
- http://applause-tickets.com/

Ticket Central
- On and off broadway theatre, dance and performance art.
- http://www.ticketcentral.com

Theatre Party
- Tickets to Broadway and Off Broadway plays and musicals for groups of 20 or more.
- http://www.theatreparty.com/

Theater Mania
- Tickets, news, reviews, children's theater, and the best of Broadway and Off Broadway shows.
- http://www.theatermania.com/

Showtix
- Discount group theatre ticket sales for Broadway and off-Broadway shows.
- http://www.showtixinc.com

Entertainment-Link
- Offers subscriptions to discount ticket purchasing service.
- http://www.entertainment-link.com

Carol Ostrow Productions and Group Sales
- Group theater tickets for Broadway & Off-Broadway shows, with group discounts; restaurant and travel recommendations.
- http://www.theatre4groups.com

BroadwayRay.com, Inc.
- Premier charter tour company providing theatre tickets to Broadway and the New York City Theatre District with departures from the Monmouth County, New Jersey area.
- http://www.broadwayray.com

BroadwayBox.com
- Lists discount codes for Broadway and Off-Broadway shows.
- http://www.broadwaybox.com

Broadway.com Inc.
- Offering tickets to on and off Broadway shows. Also includes hotel and dinner packages. [Best viewed in IE, does not work in all browsers.]
- http://www.broadway.com

Broadway Inner Circle
- Offers access to live Broadway Theatre.
- http://www.broadwayinnercircle.com