Contact Us

APL’s Main Campus

• 11100 Johns Hopkins Road, Laurel, Maryland 20723

Montpelier Campus

• MP1: 7700 Montpelier Road
• MP2: 7701 Montpelier Road
• MP3: 7707 Montpelier Road
• MP4: 7703 Montpelier Road
• MP5: 7705 Montpelier Road
• MP6: 7651 Montpelier Road
• MP7: 7710 Montpelier Road

South Campus

• Building 200: 11101 Johns Hopkins Road
• Semmel Center (Building 201): 11091 Johns Hopkins Road

Research Parkway Location

• RP1: 9055 Guilford Road

Maple Lawn Location

• ML1: 8130 Maple Lawn Boulevard

Field Offices

• Full List of APL Field Offices

• General Information: 240-228-5000
• Media Inquiries: 240-228-5020

• APL Retirees
• Supplier Resources