Our People
Leadership
ASM’s Principals, Directors, Archaeologists, Architectural Historians, and other technical staff have decades of professional and educational experience in cultural and heritage resources management. Through their experience, our technical experts have obtained the knowledge necessary to successfully complete projects, maintain safe practices, comply with legal requirements, and keep projects on schedule.
Principals and Directors

Robert Rechtman, Ph.D.
CEO

David Mayes, M.S., M.B.A.
CFO

Brian Williams, M.M.A. - Archaeologist
RPA | COO

Shelby Castells, M.A. - Archaeologist
RPA | Director, San Diego Office

Matt Clark, M.A. - Archaeologist
Director, Hilo Office

Dave Iversen, M.A. - Archaeologist
RPA | Director, Stanwood Office

Shannon Davis, M.A. - Architectural Historian / Historian
RPH | Director, History Group

Peter Carey, M.A. - Archaeologist
RPA | Director, Central Valley

Edward Stoner, M.A. - Archaeologist
RPA | Director, Reno Office

Brennan Bajdek, M.A. - Archaeologist
RPA | Director, Eugene Office

Nick Belluzzo, M.A. - Archaeologist
RPA | Director, Honolulu Office

John Taylor Montoya, Ph.D. - Archaeologist
RPA | Director, Albuquerque Office
Stakeholders
With experts in local archaeology and historic preservation, ASM staff have established long-term relationships with regional stakeholders including local preservation groups, tribal nations, and local, state and federal agencies.
Safety & Training
As part of ASM’s business philosophy, we provide in-house and off-site training to all of our employees in order to stay up to date on case law, safety techniques, advanced technologies, and successful business practices. We are are a registered ISNetworld and A-graded vendor for numerous clients.
Staff Qualifications
All of ASM’s Principals, Directors and Senior Technical Specialists hold advanced degrees and exceed the Secretary of the Interior’s (SOIs) Professional Qualifications Standards for their respective fields.
Additional Staff
Our staffing capabilities include sufficient personnel to conduct multiple projects simultaneously while maintaining delivery of high-quality products. ASM provides technical expertise in all specialties and methodologies of archaeology, historic preservation, and GIS, and also regional expertise to ensure clients are provided a focused approach. Specialties include experts in the fields of geoarchaeology, remote sensing, GPR, 3d modeling, XRF analysis, and other technical areas, solidifying ASM as a premier CRM firm. Additionally, many of our staff members have cross-disciplinary training. This includes staff that have obtained HAZWOPER certifications, UXO Safety Training, and are CPR and First Aid certified.
Senior Archaeologists
Sherri Andrews, M.A., J.D., RPA
Amy Jordan Ph.D., RPA
Zoē Rawski, Ph.D., RPA
Summer Moore, Ph.D.
Whitney Osiensky, M.A., RPA
Holly Drake, M.A., RPA
Kent Manchen, M.A., RPA
Jana Boersema, M.A.
Nichole Abbott, M.A.
Lauren Kepa’a, B.A.
Michael Shong
Architectural Historians & Historians
Sarah Stringer-Bowsher, M.A., RPH
Marilyn Novell, M.S.
Laura Kung, M.A.
Madeline Gonzalez, M.A.
Emily Steele, M.Sc.
GIS Specialists
Montana Long, M.A., RPA
Nick Doose, M.A.
Manuel Lopez
Erica Esquer
Administrative Staff
Jason Carr | Word Processing
Wendy Limsico | HR Manager
Brent Burmeister | Director, Marketing & Proposals
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ASM Corporate Headquaters | 2034 Corte Del Nogal | Carlsbad, California 92011.