Some of the territories that London Trackwork covers include:
- Boston, Massachusetts
- Houston, Texas
- Miami, Florida
- Pittsburgh, Pennsylvania
- Philadelphia, Pennsylvania
- Portland, Oregon
- Sacramento, California
- Salt Lake City, Utah
- San Diego, California
- San Francisco, California
- San Jose, California
- Seattle, Washington
- St. Louis, Missouri
- Tampa, Florida
- Tucson, Arizona
- Washington, DC
- Vancouver, British Columbia
- Calgary, Alberta
- Edmonton, Alberta
- Saskatoon, Saskatchewan
- Regina, Saskatchewan
- Winnipeg, Manitoba
- Toronto, Ontario
- Ottawa, Ontario
- Kitchener, Ontario
- Waterloo, Ontario
- Montreal, Quebec
- Quebec City, Quebec
- Halifax, Nova Scotia
- All 50 states in US, Washington DC
- All provinces in Canada