Meet Your NSA Staff

Joshua C. Caulfield, IOM

Chief Executive Officer (CEO)

Contact: jcaulfield@nsacct.org, (571) 982-7362

Joshua Caulfield, IOM, worked in non-profit associations since 1997 and has been the CEO of six organizations resulting in significant revenue and membership growth.  Mr. Caulfield has received presidential awards from the American Institute of Architecture Students (AIAS) and the American Medical Student Association (AMSA) and earned the US Chamber of Commerce’s Institute of Organizational Management (IOM) certification.

Joshua is a published author of several articles and books on Organizational Management and Membership Recruitment, including “Outreach: Recruiting Members Painlessly”.

He is an accomplished speaker on technology adaptation, pricing policy, and leadership topics and he has developed programs for the American Society of Association Executives (ASAE).

Lauren B. Nilssen, CMP, CMM, CAE, AFSP

Deputy Executive Director

Contact: lnilssen@nsacct.org, (571) 982-7358

Lauren Nilssen, CMP, CMM, CAE, AFSP, has over 25 years of non-profit association experience and 20 years as a registered tax professional solving tax issues. Lauren worked as a technical editor for KMPG, a Big-4 accounting firm, and she was an event planner for non-profit association board meetings and an industry consultant. Ms. Nilssen also teaches future association executives who are preparing for the Certification of Association Executives (CAE) exam.

Lauren has lived and worked as a journalist in Moscow, Russia, and has traveled extensively. She lives in Arlington, VA with her husband.

Evan A. Lemoine, MBA, CPA, CFE, CGMA, PRP

Director of Industry Relations

Executive Director, Accreditation Council for Accountancy & Taxation
Executive Director, NSA Scholarship Foundation

Contactelemoine@nsacct.org, (571) 977-2797

Evan Lemoine has extensive accounting, audit, tax, and advisory experience ranging from small startups to Fortune 1000 companies. He serves on the board of several community, civic, and professional organizations where his expertise in not-for-profit governance, accounting, and technology is sought. In addition to being a CPA, he’s a certified fraud examiner, chartered global management accountant, and a professional registered parliamentarian. Evan is a frequent speaker to organizations on meeting procedures (Robert’s Rules), internal controls for small organizations, and not-for-profit taxes. He is an adjunct instructor and has taught introductory accounting courses all the way through graduate-level classes. He is a proud New England native and lives in Providence, Rhode Island.

John C. Overington

Director of Membership

Contact: joverington@nsacct.org, (571) 982-7361

John brings almost a decade of association management experience, including membership support, acquisition, communications, and strategic partnerships. Previously, he has occupied various roles in human resource management and served as a federal finance contractor. In 2019, John was selected to participate in ASAE’s NextGen summit and is currently pursuing his CAE certification. He resides in Alexandria, VA, with his wife and son.

Cindy Lopez

Membership Manager

Contact: clopez@nsacct.org, (571) 982-7359

Cindy Lopez joins NSA as the operations manager and manages the office operations for the association.  Cindy has over 15 years of experience in the non-profit world. She has worked as an office manager for JKS Systems, based in Fairfax, VA, and for the Institute of Makers of Explosives (IME) in Washington, DC.