top of page
  • TheGreenvilleBlog

Colliers’ Montgomery and Swayngim receive Society of Industrial and Office REALTORS® designation

Colliers l South Carolina announced that John Montgomery and Dillon Swayngim have earned the Society of Industrial and Office REALTORS® (SIOR) designation.

The SIOR designation is awarded to real estate professionals in recognition of their knowledge, experiences and proven successes in the markets they serve. To receive the designation, professionals must meet specific requirements, including recognition by developers, lenders and investors, a high level of transactional production and SIOR’s strong education and ethical requirements.

“John’s and Dillon’s market expertise serves as a distinguishing asset for the Spartanburg-Greenville industrial brokerage teams and for Colliers,” said David Feild, Market President for Colliers’ offices in Greenville and Spartanburg. “Both of these professionals have supported substantial local and regional economic development through hard work, aptitude and dedication. Earning the SIOR designation only strengthens their professional reputations as leading commercial real estate brokers in South Carolina.”

Montgomery joined Colliers’ Spartanburg office in 2018 with an extensive background in master-planned communities, industrial, commercial, retail and residential development projects. As a Managing Director specializing in industrial brokerage, he guides clients through the development process from land acquisition and development through lease-up. He is a graduate of the Liberty Fellowship Program and the National Outdoor Leadership School, and he has served on the Board of Trustees for Converse College, the Board of Directors for Glenn Springs Academy, Boys and Girls Clubs of the Upstate, SAFE Homes Rape Crisis Coalition, Spartanburg Community College Foundation and the University of South Carolina Upstate Foundation Board. He is a member of the Church of the Advent and is the current Chairman of the Commission of Public Works for the City of Spartanburg as well as a commission for Spartanburg Sanitary Sewer District. He was awarded the Colliers l South Carolina Top Producers Award and Walter M. Keenan Award in 2022. He graduated from the University of the South and holds a Master of Real Estate Development degree from Columbia University.

Swayngim is a Vice President and an industrial brokerage specialist in the Greenville-Spartanburg market, specializing in landlord and tenant representation as well as industrial investment sales. He received Colliers | South Carolina’s 2020 Rising Star Award and has been named a CoStar Power Broker multiple times. He was also awarded the Colliers l South Carolina Top Producers Award in 2022. He is a member of the Spartanburg Young Professionals, an organization of the Spartanburg Chamber of Commerce that focuses on social and leadership development, and United Way of the Piedmont’s Young Leaders Society. Swayngim graduated from the University of South Carolina Upstate with a Bachelor of Science degree in Business Administration with a concentration in economics and finance.

About Colliers

Colliers | South Carolina has over 140 staff members, including 62 licensed real estate professionals, covering the entire state with locations in Charleston, Columbia, Greenville and Spartanburg. Total 2021 brokerage volume exceeded $1 billion, which included over 590 sales and leasing transactions. In addition to traditional commercial real estate representation services for our clients, the company is actively engaged in Corporate Solutions and Healthcare Services. Colliers is an Accredited Management Organization (AMO) through the Institute of Real Estate Management (IREM) and is the largest manager of commercial real estate properties in South Carolina, with a portfolio of over 17 million square feet of office, industrial, retail and healthcare properties. Colliers’ staff hold 54 professional designations, the most of any firm in South Carolina. Colliers | South Carolina’s partner, LCK, provides project management services for new facilities and renovations across South Carolina and set a new record by managing a portfolio of projects approaching $1 billion in volume during 2021.

Colliers (NASDAQ, TSX: CIGI) is a leading diversified professional services and investment management company. With operations in 67 countries, our more than 15,000 enterprising professionals work collaboratively to provide expert advice to real estate occupiers, owners and investors. With annualized revenues of $3.0 billion ($3.3 billion including affiliates) and $40 billion of assets under management, we maximize the potential of property and accelerate the success of our clients and our people. Learn more at, Twitter @Colliers or LinkedIn.

Recent Posts

See All

Bon Secours celebrates 2024 Project SEARCH graduates

Bon Secours St. Francis Health System will celebrated the Class of 2024 during a special ceremony at the Bon Secours Wellness Arena this week. Each year, the hospital hosts a group of students with di


bottom of page