Spay, Inc. (SPCA of Northern Virginia) Metro Ferals National Capital Area Spay & Neuter Center (Washington Humane Society) Washington Animal Rescue League Animal Welfare League of Arlington Animal Welfare League of Alexandria Humane Society of Loudoun County Prince William SPCA Montgomery County Humane Society Humane Society of Charles County Shenandoah Valley Spay/Neuter Clinic Prince Georges Feral Friends SPCA/Humane Society of Prince George’s County Spay Today (National Humane Education Society), Martinsburg and Charles Town, WV and Winchester, VA
