Looking for the right Tessitura contact

Hoping this is the right place to ask this question:

We are soliciting bids from local web development firms to re-do our website with Tessitura integration.  We need to put the vendors in touch with someone at Tessitura to discuss the API so that they can get an idea of what level of effort is involved to create the integration.

Who within the Tessitura staff can I direct them to?

Thanks for any input.