For brand communications we use the typeface Whitney. At this time, we cannot distribute Whitney to employees outside the Brand Team. If you are a vendor working with Twilio, you are responsible for acquiring your own license to use Whitney.
Please note that we do not own the fonts that we use. We pay for a specific number of licenses. That means that our fonts cannot be shared with non-Twilions or vendors. Any company or individual outside of Twilio will be responsible for paying for their own licenses to the fonts. There are exceptions to this rule (like printers). For more details please consult the EULA.