I/O Related Groups

ASAP (Atlanta Society of Applied Psychology) Bi-monthly meetings, periodic workshops and a newsletter. E-mail listserv. CE credits available. Job/resume postings. About 80 members.
BAAP (Bay Area Applied Psychologists) Founded in 1996, this group meets on a quarterly basis to discuss a broad range of I-O topics. About 50 members and considering a newsletter.
CIOP (Chicago I/O Psychologists, formerly GCAIOP) 4 to 6 half-day seminars/workshops each year and an annual dinner meeting. Newsletter. Job postings.

CWAIOP (Colorado-Wyoming Association of I/O Psychologists)

The mission of CWAIOP is to develop a network of I-O psychologists that provides a method for local I-O psychologists, whether academic or practitioner based, to share up-to-date research and practices.
DAIOP (Dallas Area I-O Psychologists) Founded in 2002, DAIOP has about 60 members who meet bimonthly in the Dallas area to discuss I-O topics.  CE credits are provided at meetings.

GIOP (Gateway I/O Psychologists)

Bimonthly meetings in the St. Louis area. Newsletter
HAIOP (Houston Area I/O Psychologists) Promotes exchange of scientific, empirical, practical, theoretical, and/or conceptual information and concerns between members.  Monthly meetings during the academic year. Continuing Education credits. About 80 members.
HODN (Kansas City area) An association of Midwest OD practitioners representing professional roles in private industry, nonprofit organizations, government agencies and consultants who engage in private practice and/or teach.  Bi-monthly meetings.
Mayflower Group Founded in 1971, consortium of blue-chip companies employing at least 10,000 U.S.-based employees. Dedicated to employee opinion surveys. Limited membership. 2 meetings per year.

MAIOP (Michigan Association of I-O Psychologists)

4 meetings a year in the Detroit area. About 150 members from SE Michigan, northern Ohio, and southern Ontario.

METRO (Metropolitan New York Association for Applied Psychology)

Grandma of all I-O groups, founded in 1939. Monthly meetings, newsletter, job listings. 500-600 members

North Carolina Industrial and Organizational Psychologists Professional network of, at present, some 100 I-O professionals from universities, corporations, and private practices. Meets twice a year for a one-day program, and publishes two digital newsletters each year.
NESAP (New England Society for Applied Psychology) About 60 members. Five meetings per year in the Newton/Boston area. Five times-yearly newsletter.
PAI (People Assessment in Industry, South Africa) Focuses on marketing and educating people about psychological assessment, validation studies, and ethics of use. 16 individual and 22 organizational/corporate members.
PIOPA (Portland I/O Psychology Association) This is an informal association of professionals with backgrounds, professional experience, and education in industrial, organizational, and work psychology, or other related disciplines and working in the Oregon/Southwest Washington region. There are 2 meetings each quarter.
San Diego Industrial and Organizational Professionals Founded in 2005, SDIOP has more than 80 students, faculty and practitioners interested and working in Industrial and Organizational Psychology in the greater San Diego area.  Bi-monthly meetings with speakers.
TIOP (Texas I-O Psychologists) An organization serving the needs of I-O psychologists across the state of Texas. About 65 members. Sponsors workshops twice a year in conjunction with Texas Psychological Association conferences.