William Durso, Jr., CPP2 min read

Principal Consultant

E: bdurso@cosecure.com
P: 215.820.0428
William Durso, Jr., CPP

William “Bill” Durso, Jr., CPP, is a principal consultant with COSECURE, leading the Commercial Real Estate and Corporate practice area across various industries. Known for his expertise in corporate security management and physical security operations, Bill has over 25 years of experience developing security programs and departments. He is sought out for his ability to provide superior security assessments, security master planning, and expert witness services. Previously, Bill founded and served as principal advisor of the Durso Group, a leading physical and operational security advisory firm. He is board certified in security management as a Certified Protection Professional (CPP) from ASIS International.

Certifications:

Associations:

  • ASIS International
  • Greater Philadelphia Chapter
  • Chair, Officer Election Committee
  • Member (1996-present)
  • International Association of Professional Security Consultants (IAPSC)
  • Executive Officer, Treasurer (2024-2025)
  • Executive Officer, Secretary (2023)
  • Board of Directors (2018-2022)
  • Member (2017-present)
  • Security Industry Association (SIA)
  • Consultant Member
  • FAST Committee Member
  • IAPSC-SIA Liaison
  • AG-01 Working Group Member – Security Drawing Standards
  • Member (2022-present)
  • InfraGard Philadelphia Chapter
  • Member (2023-present)
  • NYPD Shield
  • Member (2016-present)
  • Philadelphia Police Department – Delaware Valley Intelligence Center
  • Active Member (2018-present)

Recent News

A recent study published by ASIS International revealed some eye-opening findings about Behavioral Threat Assessment and Management (BTAM) practices in schools. Only 15% of schools conduct social media or online footprint reviews every time they ...

November 5, 2025, Philadelphia, PA –– Today, COSECURE, a national risk management and security consulting firm with an emphasis on physical security, emergency preparedness, active threat prevention, and cybersecurity, announced it has become a supporting ...