It isn't only FORD MODELS and Elite Models. Which all have very strick height requirement. But there is so much more a petite model can consider but sometimes it isn’t blunt on the page or a Google search, mainly because Google doesn;t do us justice! The results of the words Modeling Agency are not very inspiring for a petite model.
Don't forget talent agencies, not just fashion modeling agencies, but submit yourself to places where you will be accepted.
First thing I booked with Funny Face Today, FFT was a job on As the World Turns, they needed a girl who was comfortable in a bathing suit, and I was, and I booked another job through another agency for Teen Vogue fit modeling.
If you have experience and an established portfolio Wilhelmina Models might work with you for print.