- Grassmere Improvement Corp.2
- Grately Realty Co., Inc.1
- Grayco Builders, Inc.2
- Greater New York Savings Bank1
- Green Park Sussex Inc.1
- Green, Harry F.24
- Greenberg and Ames47
- Greenberg, C.E.1
- Greene, Henry George8
- Greenfield Organizations, Ltd.2
- Greenholz, Jacob1
- Greenhut and Taffel1
- Greenwich Gardens, Inc.1
- Gresham Construction Co., Inc.5
- Gronenberg and Leuchtag7
- Gross, Samuel3
- Gross-Morton2
- Gruenstein and Mayer2
- Grulev Realty Corp.1
- Grutman, Alexander1
- Gruzen, B. Sumner1
- Guzman Gutierrez, M.N.14
- H and C Building Corp.1
- H and W Building Corp.1
- H. Clayton Smith and Co.11
- H.J. Kalikow and Co., Inc.38
- H.R. Shapiro, Inc.5
- H.S. Hillyer and Co., Inc.1
- HRH Construction Co., Inc.1
- HY and D Agar, Inc.1
- Hageman, A.A.2
- Hageman, John2
- Hall of Fame Building Corp.1
- Halleran Agency1
- Halpern and Pintel3
- Halpern-Stillman1
- Hames, C. Eugene1
- Hamilton Manor, Inc.1
- Hamilton, Iselin and Co., Inc.1
- Hampton Management Co.23
- Hanfield, Hillyer, and Bell, Inc.10
- Harick Building Corp.1
- Harmon, Harry J.4
- Harper Management6
- Harris, Newmark and Co.5
- Harrison Crescent Associates1
- Harrison and Abramovitz2
- Harrison and Fouilhoux6
- Harry Hoens, Inc.1
- Harry Klein Realty Co.4
- Harway Terrace, Inc.1
- Haus and Bresin1
- Hausman and Rosenberg3
- Heatherwood1
- Heidrich, Stephen L.2
- Heindsmann, Theodore E.1
- Hej Realty Corp.1
- Heller, Al2
- Helmle and Corbett1
- Helmsley-Spear, Inc.46