About Us

“Helping owners and users of commercial, industrial, retail, office, investment and development real estate in the New York and New Jersey Metropolitan area create value by providing expert brokerage services coupled with cutting edge market knowledge.”

Specialization + Proprietary Real Estate Data + Experience = Expert Real Estate Advice

The professionals at Greiner-Maltz recognize that we owe our success to our specialization in the geographic region and concentration in only commercial, industrial and retail real estate. This concentration of intellect of over 50 years has created a proprietary database which not only forms the basis for creating more transactions than any of our competitors but is also called upon by appraisers, bankers and city agencies when they need "help" with the market. There is good reason why the name Greiner-Maltz has become synonymous with commercial and industrial real estate in the New York and Long Island metropolitan areas.

Click here to view some of the communities we serve.

The foundation of our business is our involvement within our marketplace. We start by listening to our clients, gathering information, setting goals and then establishing a clear line of direction for achieving our ends. On this solid base we have built a strong record of intelligent, effective performance. Our commitment to excellence is reflected in our attention to every assignment and to every customer. Our clients have found that we do what we say we will do, expertly and with integrity. They recommend us to their associates and they call us again when they have new requirements.

Greiner-Maltz Services

“Creating Opportunities Together”


Greiner-Maltz has been providing appraisals; consultations and value advisements for the past 50 years based on in-depth, cutting edge market data.

Our staff of over 40 associates continues to build a comprehensive database that forms the foundation for supportable and accurate appraisals.

No other firm matches our unique commitment. From Hauppauge to the East River there is over 1 billion square feet of industrial and commercial real estate. Our stated policy is to specialize exclusively in this unique market.

Our clients insist on an appraisal specialist with cutting edge market knowledge. Our clients -manufacturing and service companies, attorneys, accountants and investment bankers - know that every decision in today's real estate market is a critical one.

Typical assignments handled by the Greiner-Maltz team:

  • Acquisition or disposition of investment assets
  • Ad valorem tax assessment appeals
  • Arbitration
  • Bankruptcy/reorganization
  • Buy-sell agreements
  • Charitable contributions
  • Condemnation
  • Construction financing
  • Corporate asset transfers
  • Depreciation studies
  • Development feasibility
  • Equitable distribution
  • Estates
  • Expert testimony
  • Feasibility studies
  • Hardship analysis
  • Insurance requirements
  • Investment tax credit
  • Lease negotiations
  • Mergers and acquisitions
  • Mortgage financing
  • Partnership analysis-disposition
  • Partnership buy-outs
  • Purchase analysis
  • Recapitalization
  • Sale/leaseback
  • Tax abatement analysis
  • Zoning-highest and best use studies


Through our brokerage activities over the years we have developed a panoply of resources, data, and skills. We are frequently asked to interpret and analyze a variety of real estate problems for our clients. We then provide alternate courses of action based on proprietary market data, sophisticated economic analyses and realistic relocation studies.

Negotiation Representation

In order to structure the best possible deal for our clients Greiner-Maltz will bring expert negotiation skills to the table. Negotiation is the pivotal component of any real estate transaction and the key to a successful negotiation is the ability to analyze each available alternative and foresee the consequences of each.

Industrial and Office Park Development

Our assistance in site location, acquisition, project planning, construction, and supervision of development of industrial and office parks, offers users, owners and investors the assurance of our continuing involvement, culminating in the marketing and leasing the completed property.

Property Management

For owners of industrial or office properties, we assume complete professional responsibility for operation, staffing, cost control, maintenance, collection, and disbursement, tenant relations and all other daily and long-term management functions. All Greiner-Maltz accounting functions are computerized and reports are provided to our clients on a regular basis.

Space Analysis

Greiner-Maltz will assist clients in determining their space needs and in adapting new facilities for their specific use. We will perform land use and market studies; and, working with our clients, their architects, engineers, and space planners will assist in determining the criteria, which must be met in their new quarters. Our proprietary listings identify potentially suitable locations and facilities, which allow us to project total costs over time to help our client make the best decisions.

Mailing Address

Long Island Office
185 Express Street
Suite 300
Plainview, NY 11803

New York Office
24-09 38th Avenue
Long Island City, NY 11101-4119

New Jersey Office
250 Moonachie Road
Moonachie, NJ 07074

Westchester Office
800 Westchester Avenue
Rye Brook, NY 10573

Email us at: greinermaltz@greiner-maltz.com

Your active cooperation is invited on a co-brokerage basis. Although all information furnished regarding property for sale, rental, or financing, is from sources deemed reliable, such information has not been verified, and no express representation is made nor is any to be implied as to the accuracy thereof, and is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing, or withdrawal without notice.