Exhibit 1
Power of Attorney
Each of the undersigned hereby irrevocably constitute and appoint Troy Cichos as agent andattorney-in-fact, with full power of substitution, with respect to the power and authority on behalf of each of the undersigned to execute and file, or cause to be executed or filed, any documents required to be filed by Section 13 of the 1934 Act and to execute any documents in connection with each of the undersigned’s purchase of the securities to which the Statement on Schedule 13D relates.
IN WITNESS WHEREOF, the undersigned have executed this agreement as of the date set forth below.
| Date: February 13, 2017 | MADRONA VENTURE FUND IV, LP | |||||
| By: | Madrona Investment Partners IV, LP its General Partner | |||||
| By: | Madrona IV General Partner, LLC, its General Partner | |||||
| By | /s/ Troy Cichos | |||||
| Its Authorized Signatory | ||||||
| Date: February 13, 2017 | MADRONA VENTURE FUNDIV-A, LP | |||||
| By: | Madrona Investment Partners IV, LP its General Partner | |||||
| By: | Madrona IV General Partner, LLC, its General Partner | |||||
| By | /s/ Troy Cichos | |||||
| Its Authorized Signatory | ||||||
| Date: February 13, 2017 | MADRONA INVESTMENT PARTNERS IV, LP | |||||
| By: | Madrona IV General Partner, LLC, its General Partner | |||||
| By | /s/TroyCichos | |||||
| Its Authorized Signatory | ||||||
| Date: February 13, 2017 | MADRONA IV GENERAL PARTNER, LLC | |||||
| By | /s/TroyCichos | |||||
| Its Authorized Signatory | ||||||
| Date: February 13, 2017 | /s/ Tom A. Alberg | |||||
| Tom A. Alberg | ||||||
Exhibit 1
| Date: February 13, 2017 | /s/ Paul B. Goodrich | |||
| Paul B. Goodrich | ||||
| Date: February 13, 2017 | /s/ Scott Jacobson | |||
| Scott Jacobson | ||||
| Date: February 13, 2017 | /s/ Len Jordan | |||
| Len Jordan | ||||
| Date: February 13, 2017 | /s/ Matthew S. McIlwain | |||
| Matthew S. McIlwain | ||||
| Date: February 13, 2017 | /s/ Timothy M. Porter | |||
| Tim Porter | ||||
