Find An SIOR Member

Find an Individual Member

Find an individual member using the form below or using our Member Map. To select among specialty types please see the definitions of each type below and choose accordingly.

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.

Affiliate Member

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 Matthew S. O'Connell

Mr Matthew S. O'Connell

Associate Vice President

DONOHOE COMMERCIAL REAL ESTATE

SIOR

SIOR Member since 2020

7101 Wisconsin Ave Ste 700, Suite 700, Bethesda, Maryland 20814-4814

Active Committees (0)

No active committees on record.

Past Committees (0)

No past committees on record.

Events Attended This Year (1)
  • SIOR'S Fall 2026 EventOct 19, 2026
Lifetime Events Attended (12)
  • SIOR'S Fall 2026 EventOct 19, 2026
  • 2025 Fall EventNov 4, 2025
  • 2025 Spring EventMay 6, 2025
  • 2024 Spring EventMay 6, 2024
  • Fall 2023 EventOct 11, 2023
  • 2023 Spring EventApr 26, 2023
  • 2022 CREate 360Oct 19, 2022
  • Webinar: Construction Pricing and Supply Chain Challenges Threaten the Office MarketJun 22, 2021
  • Subleasing & Lease BuyoutsMar 3, 2021
  • 2022 TransACT 360Apr 29, 2020
  • 2019 Winter Broker Bootcamp 11/11/2019Nov 11, 2019
  • 2019 Spring World ConferenceApr 10, 2019
Transactions (0)

No transactions on record yet.

Buildout
Bridge