Reis 10-Q 2017 Q3 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report onForm 10-Q of Reis, Inc. (together with its consolidated subsidiaries, the “Company”) for the period ended September 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Lloyd Lynford, Chief Executive Officer of the Company, and Mark P. Cantaluppi, Chief Financial Officer of the Company, each certify, to the best of our knowledge, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Lloyd Lynford

Lloyd Lynford

Chief Executive Officer

Reis, Inc.

/s/ Mark P. Cantaluppi

Mark P. Cantaluppi

Chief Financial Officer

Reis, Inc.

November 7, 2017

This certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and is not being filed as part of this Report.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.