Society of Industrial and Office Realtors (SIOR)

What Society of Industrial and Office Realtors (SIOR) does

The Society of Industrial and Office Realtors (SIOR) is a private, nonprofit professional membership organization founded in 1941 and headquartered in Washington, D.C. It grants the SIOR designation, a credential reserved for top-producing industrial and office commercial real estate brokers who meet rigorous experience, transaction volume, and ethical standards. The organization serves approximately 4,100+ designees and members across 52+ countries, organized through a global chapter structure spanning the U.S., Canada, Europe, Asia Pacific, and Latin America.

SIOR's product surface centers on the Designation Program and its Next Level Series (formerly Broker Bootcamp Series) education curriculum, with supporting offerings that include the Find an SIOR directory, SIOR Connect member networking and marketing platform, a Transaction Database, the SIOR Report magazine, the SIOR Pulse blog, a Thought Leadership Series, and the AI-personalized SIOR Weekly e-newsletter. Annual programming comprises the International Conference (Lisbon 2026), Spring and Fall events (Palm Springs, New York), and the Global Industry Partner Program connecting members with sponsors such as Property Resources Group, Dermody, Sparrow Hawk Real Estate, and AtWater Group. Technology backbone includes the Higher Logic-powered mySIOR.com member portal.

Revenue is generated primarily through recurring annual membership dues, event and conference registrations and sponsorships, education program fees, branded merchandise sales via styleshop.sior.com, and Global Industry Partner contributions. Distribution is direct via chapters and the SIOR website, with sales-led and community-led go-to-market motions layered together. Governance is via an elected Board of Directors, with leadership transitioning in 2026 to incoming CEO David C. Lockwood III (effective March 30, 2026) and a newly elected 2026-2027 Board including Global President Aaron Barnard.

Name

Society of Industrial and Office Realtors (SIOR)

Legal name

Society of Industrial and Office Realtors®

Website

https://sior.com

Company type

Private

Founded year

1941

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

The Society of Industrial and Office Realtors (SIOR) is a global nonprofit professional membership organization founded in 1941 that grants the SIOR designation to top industrial and office commercial real estate brokers. It serves 4,100+ designees across 52+ countries through education, events, and a global chapter network.

Ownership category

akta.pro rank

Headquarters

HQ city

Washington

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Membership Dues: SIOR generates revenue primarily through annual membership dues from its 4,100+ members worldwide. Membership categories include Industrial Specialist, Office Specialist, Dual Specialist, Advisory Specialist, Executive Management Specialist, Sales Management Specialist, Developer Affiliate, General Affiliate, Corporate Affiliate, and Member Associate.
2. Education Programs: Revenue from Next Level Series courses, online ethics courses, and e-learning programs that fulfill SIOR designation education requirements.
3. Events and Conferences: Registration fees and sponsorships from major events including Fall Events, Spring Events, and International Conferences (e.g., Lisbon 2026, New York 2026).
4. Merchandise Sales: SIOR operates an online store selling branded apparel, accessories, drinkware, and gift cards through styleshop.sior.com.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

SIOR is a private professional membership organization that confers the SIOR designation — a globally recognized credential awarded to industrial and office commercial real estate brokers who meet rigorous experience, transaction-volume, and ethical standards. The society delivers paid member benefits spanning the SIOR Designation Program, the Next Level Series education curriculum, an AI-personalized weekly newsletter, an annual conferences portfolio (International, Fall, and Spring events), a global member directory, a member transaction database, an online branded merchandise store, and the affiliated SIOR Foundation supporting the next generation of CRE professionals.

Product overview

The Society of Industrial and Office Realtors (SIOR) is a professional membership organization, not a software product. Its offerings center on the SIOR Designation Program—a prestigious credential for industrial and office real estate brokers—supported by the Next Level Series education curriculum. Members gain access to a Find an SIOR directory for business networking, SIOR Connect for member marketing, a Transaction Database showcasing member deal history, and SIOR Weekly—an AI-powered personalized newsletter. The organization also hosts annual global conferences (International Conference, Fall Event, Spring Event), publishes the SIOR Report Magazine, operates the SIOR Foundation for next-generation professional development, and runs an SIOR Online Store for branded merchandise. The Global Industry Partner Program connects members with industry vendors.

Differentiator

Problem solved

Functional benefit

Brands

• SIOR Foundation: A foundation dedicated to supporting the next generation of commercial real estate professionals through scholarships, educational programs, and professional development initiatives.

Products and services

• SIOR Designation Program A prestigious professional designation awarded to industrial and office commercial real estate brokers who satisfy strict experience, transaction volume, and ethical standards. Members gain access to a global directory, continuing education, transaction data, and major networking events.
• Next Level Series Education A curated online and live education curriculum helping CRE brokers build skills, earn continuing education credits, and satisfy SIOR designation requirements. Open to qualifying CRE professionals.
• Annual Conferences and Events Recurring global conferences (International Conference, Fall Event, Spring Event) that combine networking, continuing education, and the annual Top Transaction Awards ceremony for SIOR members and industry partners.
• SIOR Online Store (Style Shop) SIOR-operated e-commerce storefront selling branded apparel, accessories, drinkware, and gift cards to members and supporters.

Quantifiable outcome

• 80,000 deals completed by SIORs every year
• +2 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature3 records

Partnerships

Four partnerships are on record, tiered core and major.

• SIOR FoundationcoreStrategic or Co-development PartnerThe SIOR Foundation is the charitable arm of SIOR, focused on supporting the next generation of commercial real estate professionals. The Foundation provides scholarships, professional programs, student programs, and chapter programs to educate, enhance, and expand the CRE community.
• Global Industry PartnersmajorGTM or Marketing PartnerThe Global Industry Partner Program establishes synergistic relationships between SIOR and select for-profit companies to address key commercial real estate issues and drive positive change across the industry. Partners include Property Resources Group, Dermody, Sparrow Hawk Real Estate, and AtWater Group.
• Higher LogiccoreTechnology or IntegrationHigher Logic provides the technology platform powering mySIOR.com, the member portal for SIOR's community, events, volunteering, and member resources.
• Corporate Brokerage PartnersmajorChannel Partner/ Reseller/ DistributorCorporate brokerage partners collaborate with SIOR to provide commercial real estate services and support the organization's mission.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• ULI (Urban Land Institute): ULI is a large, broad-based real estate and land use research and education organization with a membership spanning developers, investors, and advisors, overlapping with SIOR's senior practitioner audience.
• National Association of Realtors (NAR): NAR is the largest US trade association for real estate professionals, with a much broader residential/commercial scope but overlapping commercial practitioner membership and credentialing standards.
• RICS (Royal Institution of Chartered Surveyors): RICS is a global, multi-discipline chartered body for property professionals. It is a broader incumbent with significant overlap in commercial real estate credentialing and international member reach.

Direct peers

• CCIM Institute: CCIM (Certified Commercial Investment Member) is the closest direct peer, offering a competing commercial real estate designation and member network serving brokers, investors, and related CRE professionals.
• IREM (Institute of Real Estate Management): IREM is a real estate management credentialing organization whose CPM and AMO designations overlap with SIOR's executive/sales management members and serve a comparable mid-to-senior practitioner base.
• BOMA International: BOMA is a leading commercial real estate industry association focused on office and industrial property operations, management, and advocacy, sharing significant overlap with SIOR's office CRE base.
• CoreNet Global: CoreNet Global serves corporate real estate executives and occupiers, overlapping with SIOR's executive and advisory specialist members on the occupier/tenant-representation side of CRE.
• NAIOP: NAIOP is the leading US association for industrial, office, and mixed-use real estate owners, developers, and investors, overlapping directly with SIOR's industrial/office focus and member base.
• Counselors of Real Estate (CRE): The CRE designation is awarded to senior CRE advisors and consultants; it competes for the same elite, experienced real estate practitioner audience that SIOR targets with its designation.

Regional players

• ICSC (Innovating Commerce Serving Communities): ICSC is a major CRE industry association focused on retail rather than industrial/office, making it a thematic peer in the broader CRE membership space but with limited product overlap.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/siorglobal
• Instagraminstagram.com/SIORglobal

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Society of Industrial and Office Realtors (SIOR)