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Where Generations of Trust & Excellency are Built

Our company was founded & established in 1947 by Sigmund D. Herman, an architect & certified public accountant. Coming from Minneapolis, Minnesota, Herman & his family relocated to the beautiful area of Los Angeles to carry out our company's mission. 


Since 1947, our firm has specialized in the sales, leasing & management of industrial real estate in Southern California, with emphasis in Los Angeles County. Our sales activity includes both User Buyers & Investor Buyers. We currently manage approximately 4 million square feet of leased industrial buildings for both outside owners & for partnership/tenants in common investor groups our office has developed.


In 1960, our firm's management established leadership roles in both the American Industrial Real Estate Association, and the Los Angeles Association of Realtors. These leadership roles have allowed our management team the opportunity to develop & maintain an excellent relationship with our fellow industrial real estate brokers & salespersons.


With a strong leadership, dedicated staff & years of experience, we believe our many assets are proven very important & valuable to the owners we represent. 





Meet Our Team
Gary J. Herman, Sr..png

After serving in the US Army in the Korean Conflict, Gary J. Herman, Sr. joined our firm in 1952. He was elected President of S.D. Herman Co. in 1969, a capacity in which he still proudly serves.

Gary, Sr. graduated from the University of Southern California with Bachelor of Science & Master of Business Administration degrees, both with majors in Real Estate. After obtaining his MBA, he was an instructor for eight years at the University of California at Los Angeles in the real estate department of their extension division.

Gary, Sr. was co-founder of the American Industrial Real Estate Association and The Industrial Multiple (with a current membership in excess of 3,000 members). 

Gary, Sr. manages 3,000,000 square feet of leased industrial commercial properties & specializes in packaging industrial investments for his clients. In his spare time Gary & his wife, Beverly, enjoy their children, grandchildren, great grandchildren, traveling & getting away for long weekends in their desert vacation home.


Gary Herman Sr.

Memberships & Career Highlights

  • Co-Founder of the American Industrial Real Estate Association & The Industrial Multiple

  • California Association of Realtors Director (20 Years)

  • Los Angeles Association of Realtors (1976 & 1987)

  • Named Honorary Director for Life (1978)

  • National Association of Realtors representing California (12 Years)

  • Real Estate Education Endowment Advisory Committee Member (for the California State Universities & Colleagues)

  • Hancock Parks Homeowners Association (Past President)

  • Knight of the Malta

  • Vice President of the Hospitaller Foundation of California 

  • St. John of God Care Center (Fund Raising Arm)

  • Cathedral Chapel School Board of Directors (Past President)

  • Chairman of Cathedral Chapel Parish Finance Committee

Gary J. Herman, Jr..png

A Los Angeles native, Gary Herman Jr. brings his talent & experience to the firm, serving as the Vice President. Gary specializes in the selling, leasing & management of industrial properties throughout the Lose Angeles County area. 

His hobbies include being an Official Timer for the Los Angeles Lakers & South Bay Lakers  He is active with golf, basketball, tennis & skiing. Gary resides in Hermosa Beach & is a proud father of two daughters. 

Vice President

Gary Herman Jr.

Memberships & Career Highlights

  • American Industrial Real Estate Association Member (Since 1989)

  • Realtor Associate of the Year (1988)

  • Greater Los Angeles Board of Realtors President (1994)

  • District Chairman, Director, Delegate & Member of the California Association of Realtors

  • Los Angeles County Board of Realtors Committee & Political Action Committee Trustee

  • Los Angeles/Westside Multiple Listing Service Vice President & Director

  • Windsor Square Association Board of Director 

Gregory Herman VP.png

A Southern California native, Gregory is Vice President & Co-Owner of S.D. Herman Co. Since 1987, he has specialized in sale & leasing of warehouse, distribution & manufacturing facilities throughout Southern California.Greg's extensive knowledge & experience includes landlord & tenant representation, property management, property evaluation, environmental matters & construction supervision.  

Some client transactions include University of Southern California, Metrolink/Metropolitan Transportation Authority, Sonitrol Security Company, Northern Trust, Los Angeles Unified School District, Korean Youth & Community Center , Pacifica Foods Company, Timken Steel Corp., JFC International Foods, Los Angeles Community Redevelopment Agency, Hurley International & Nike Inc., with a transaction consideration in excess of $140,000,000.00

In his free time, Gregory enjoys hiking & has a 2nd degree black belt in tae kwon do.

Vice President

Gregory Herman

Memberships & Career Highlights

  • American Industrial Real Estate Association (1987)

  • Beverly Hills/Greater Los Angeles Association of Realtors (1987)

  • California Association of Realtors (1987)

  • National Association of Realtors (1987)

Robert Levenstein, Senior Sales Associat

Robert "Bob" Levenstein is the newest addition to our sales staff, but he is not new to the business. Prior to the start of his tenure at S.D. Herman Co. in January 2009, Bob had been with the Heger Realty Corporation since 1985. Before working for Heger, Bob owned & managed a successful retail furniture business in South East Los Angeles. Bob holds Bachelor of Science degrees in both Management & Finance from the University of Southern California. 

Bob has been active in the industrial real estate market in the City of Commerce for the past 20 years. His long time involvement with the Commerce Industrial Community has created strong ties based on trust & integrity with staff at Commerce City Hall. This relationship has enabled Bob to be very effective in solving difficult problems for his clients. 

Robert's experience in facilitating transactions involving local & state government approvals is widely-known & respected throughout the industrial real estate marketplace. He has been called upon to consult with City staff on the formulation of new zoning codes & Master Plan for the City of Commerce. 

Senior Sales Associate

Robert "Bob" Levenstein

Memberships & Career Highlights

  • Member of Chamber of Commerce Industrial Council

  • Co-Chair of the Government Affairs Committee with Dave Johnson (Plant Manager of Lever Brothers)

  • Industrial Council Political Action Committee (ICPAC) Chairperson 

  • Economic Development Committee Chairman

  • Heger Realty Corporation's Broker of the Year (1994 & 1996) & holds the record for Number of Transactions in a Single Year

Penny Johnson, Bookkeeper.png

Penny is a familiar face around the S.D. Herman Co. firm. She has been happily employed here for the past 50 years. 

Penny started as a file clerk in 1967 & has since worked in every phase of our office. Her current responsibilities include handling the firm's accounting. 

Bookkeeper & Executive Secretary

Penny Johnson

Minette Ponce, Office Manager_Assistant

Minette joined the S.D. Herman Co. team in January 2003. She has since assumed the duties of Office Manager & Assistant Property Manager to Gary Herman, Sr. 

Minette attended the University of Santo Tomas & the University of the Philippines. She graduated with a Bachelor of Science degree in Management & a minor in Accounting. 

In her spare time, Minette enjoys cooking, shopping & spending time with her family & friends.

Office Manager & Assistant Property Manager

Minette Ponce

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