New York City Ballet
NYCB still has the largest repertoire by far of any American ballet company. It often stages 60 ballets or more in its winter and spring seasons at Lincoln Center each year, and 20 or more in its summer season in Saratoga Springs. City Ballet has performed "The Nutcracker", "Romeo and Juliet", "A Midsummer Night's Dream", and many more. City Ballet has trained and developed many great dancers since its formation. Many dancers with already developed reputations have also joined the ballet as principal dancers.
Twyla Tharp
In 1988, Twyla Tharp Dance merged with American Ballet Theatre, since which time ABT has held the world premieres of 16 of Tharp's works. In 2010, they had a total of 20 of her works in their repertory. Tharp has since choreographed dances for: Paris Opera Ballet, The Royal Ballet, New York City Ballet, Boston Ballet, Joffrey Ballet, Pacific Northwest Ballet, Miami City Ballet, American Ballet Theatre, Hubbard Street Dance and Martha Graham Dance Company. Tharp also created the dance roadshow "Cutting Up" (1991) with Mikhail Baryshnikov, which went on to tour and appeared in 28 cities over two months.