About Us

Gateway – Premier Montessori Preschool & Kindergarten

We are Boulder County’s premier Montessori nonprofit private school specializing in early childhood education. Residing in Longmont, CO for over thirty years, we have set the standard for providing the highest quality Montessori experience. Our unwavering integrity and commitment to classic Montessori principles has set us apart from other preschool/kindergarten programs. Gateway Montessori School is licensed by the State of Colorado and is a member of the AMS, (American Montessori Society), CMA, (Colorado Montessori Association), and NAMTA, (North American Montessori Teachers Association). We have also earned the Healthy Eating, Active Living designation from Boulder County Health Department and the Eco-Healthy Child Care designation from Children’s Environmental Health Network.

Visiting Gateway Montessori could be the most important first step in your child’s journey to become the best possible “adult self”. Welcome !


Colorado Shines is the state’s quality rating and improvement system. Colorado Shines rates Colorado’s early learning programs, connects families with quality programs, and helps programs improve their quality level. 

We are a Colorado Shines Level 3 rated program, showing our commitment to supporting children’s health and safety, ensuring our staff are well-trained and effective, providing a supportive learning environment, and helping families be active in their children’s learning.

Our program is licensed and in good standing, plus it has:

  • a quality improvement plan in place
  • conducted the Level 2 Quality Indicator Program Assessment
  • completed Colorado Shines Level 2 E-learning Courses
  • registered staff in the Colorado Shines Professional Development and Information System
  • been assessed and rated a Level 3 by a Colorado Shines Quality Ratings Assessor based on:
    • Workforce qualifications
    • Family partnerships
    • Administration
    • Learning environment
    • Child health
  • Or has received a quality level through an alternative pathway

Visit www.ColoradoShines.com for more information.