That all depends on what area you live in. The most modeling oppertunities are in places like NYC, LA, South Beach, etc. However, there are some in other places. (DC,PA,local) Your 9 year old is most likely in a more commercial market. Some catologues for Macy's, JC Penny, Nordstrom, or other department stores will hire a few younger children to model children's lines.
you can google
Models 1 is touted by many as being the most successful leading modeling agency in all of Europe.
Barbizon is not an agency, they are a modeling school and charge fees for people to use their services and receive training. While they are not a scam because they are upfront about what they do, they also cannot guarantee that paying for their training will result in becoming successful or getting signed to an agency.
Docherty Model & Talent Agency and The Talent Group.
wilhelmina Modeling Agency
your mom is fat
Nevs Modeling Agency is located in London.
If you're in a good modeling market, you can stand to make a good income. The average income of a modeling agency is $58,000/year.
There is no known historical information to answer when the first modeling agency was formed.
Campbell Agency DMG Management The Clutts Agency, Inc
your basement, and your creepy uncle willing to use the camera.
There currently are no established modeling agencies in Everett, WA. The agencies in that state are located in Seattle.