Exhibit 99.1
| CUSIP No. 74766D 10 0 | 13G |
AGREEMENT
Pursuant to Rule13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of Common Stock of Quantenna Communications, Inc.
| Dated: | February 12, 2018 | |
| DAG VENTURESIV-QP, L.P. | ||
| BY: | DAG VENTURES MANAGEMENT IV, LLC | |
| ITS: | GENERAL PARTNER | |
| By: | /s/ R. Thomas Goodrich | |
| R. Thomas Goodrich | ||
| Managing Director | ||
| DAG VENTURESIV-A, LLC | ||
| BY: | DAG VENTURES MANAGEMENT IV, LLC | |
| ITS: | MANAGER | |
| By: | /s/ R. Thomas Goodrich | |
| R. Thomas Goodrich | ||
| Managing Director | ||
| DAG VENTURES IV, L.P. | ||
| BY: | DAG VENTURES MANAGEMENT IV, LLC | |
| ITS: | GENERAL PARTNER | |
| By: | /s/ R. Thomas Goodrich | |
| R. Thomas Goodrich | ||
| Managing Director | ||
| DAG VENTURES MANAGEMENT IV, LLC | ||
/s/ R. Thomas Goodrich | ||
| R. Thomas Goodrich | ||
| Managing Director | ||
/s/ R. Thomas Goodrich | ||
| R. Thomas Goodrich | ||
/s/ John J. Cadeddu | ||
| John J. Cadeddu | ||
Page 11
