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SIOR Designee
Representing the elite top 1% of commercial real estate professionals, SIOR designees are recognized for their exceptional production, experience, and commitment to the highest standards of ethics and excellence. Designees specialize in industrial, office, sales management, executive management, and advisory services.
Member Associate
Commercial real estate professionals with 1–8 years of industry experience who are building their careers and working toward earning the prestigious SIOR designation through education, mentorship, and networking opportunities.
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Companies providing products and services to the commercial real estate industry seeking to build relationships, increase visibility, and connect with SIOR’s elite global network of professionals. You may also use the following link to search our Affiliate Members.
Mr. Dion D. Campisi
Senior Vice President
COLLIERS
SIORSIOR Member since 2012
225 W Santa Clara St Ste 1000, San Jose, California 95113-1789
Active Committees (0)
No active committees on record.
Past Committees (0)
No past committees on record.
Events Attended This Year (1)
- 2026 Spring EventApr 14, 2026
Lifetime Events Attended (12)
- 2026 Spring EventApr 14, 2026
- Annual Golf Tournament 2021May 20, 2021
- Virtual Kick-Off EventFeb 4, 2021
- Annual KickoffFeb 6, 2020
- Networking on Pier 1Sep 20, 2018
- 2018 Spring World ConferenceApr 11, 2018
- Golf Tournament 05/17/2017May 17, 2017
- Holiday Lunch and Annual AwardsDec 1, 2016
- 2016 Fall World ConferenceOct 20, 2016
- Annual Golf Tournament 09/21/2016Sep 21, 2016
- 2014 Fall World ConferenceOct 22, 2014
- 2013 Fall World ConferenceOct 24, 2013

