The following high schools are currently participating in the EXCEL program:

Bayless School District

• Bayless High School

East Prairie R-II School District

• East Prairie High School

Eldon R-I School District

• Eldon High School

Elsberry R-II School District

• Elsberry High School

Farmington R-VII School District

• Farmington High School

Ferguson-Florrisant R-II School District

• McCluer High School
• McCluer North High School

Fort Zumwalt R-II School District

• Fort Zumwalt North High School
• Fort Zumwalt South High School
• Fort Zumwalt East High School
• Fort Zumwalt West High School

Fox C-6 School District

• Fox High School
• Seckman High School

Mehlville R-IX School District

• Mehlville High School
• Oakville High School

Meramec Valley R-III School District

• Pacific High School

Morgan County R-II School District

• Morgan County High School

Northeast R-IV School District

• Northeast High School

Parkway C-2 School District

• Parkway Central High School
• Parkway North High School
• Parkway South High School
• Parkway West High School

Ritenour School District

• Ritenour High School

Rolla 31 School District

• Rolla High School

School of the Osage R-II School District

• School of the Osage High School

Special School District

• North Technical High School
• South Technical High School

St. Clair R-XIII School District

• St. Clair High School

St. James R-1 School District

• John F. Hodge High School

Sullivan C-2 School District

• Sullivan High School

Tipton R-VI School District

• Tipton High School

Union R-XI School District

• Union High School

Valley Park School District

• Valley Park High School

Warren County R-III School District

• Warrenton High School

Windsor C-1 School District

• Windsor High School

Winfield R-IV School District

• Winfield High School

Private Schools

• Christian High School
• Lutheran High School – St. Charles
• North County Christian School
• Saint Dominic Catholic High School
• Tower Grove Christian Academy
• Trinity Catholic High School
• Ursuline Academy
• Westminster Christian Academy