| Name | Street | Number | Occupation |
|---|---|---|---|
| Zabala Hnos. | Buen Orden | 201 | consignees |
| Zaldarriaga & Co. | Victoria | 221 | outfitters |
| Zaldívar & Martínez, | Victoria | 238 | dry goods |
| Zamboni & Sons, | Charcas | 481 | hardware |
| Zapiola, P. | Piedad | 164 | lawyer |
| Zariategui, D. | 25 de Mayo | 30 | money-changer |
| Zarraga, Simon | San Martín | 16 | lawyer |
| Zavalía, David | Rivadavia | 141 | lawyer |
| Zavalía, S. J. | Santa Fe | 346 | lawyer |
| Zeballos, Estanislao S. | Perú | 43 | lawyer |
| Zemborain & Martínez, | Pavón | 31 | timber-yard |
| Zenavilla, Alejandro | Perú | 16 | medical doctor |
| Zenavilla, Eduardo | Perú | 163 | lawyer |
| Ziegler, A. | San Martín | 73 | North German Insurance agent |
| Zimmerman, Edward | Piedad | 623 | broker |
| Zimmerman, John C. | Santa Fe | 125 | broker |
| Zorraquin, C. | Florida | 7 | dry goods |
| Zorrilla, Manuel | Artes | 464 | lawyer |
| Zuberbühler, | Perú | 17 | dry goods |
| Zubiaurre, Benjamín | Defensa | 687 | estanciero |
| Zuviría, José M. | Belgrano | 87 | lawyer |
| Zwingen, Anthony | Santa Lucía | 35 |
M. G. & E. T. Mulhall, Handbook of the River Plate (London: Trübner & Co., 1885) page 682.
Guía Mensual de Kidd, Imprenta de J. H. Kidd, setiembre de 1884, pages 102, 151, 157.