This is a bit emberassing, but here it goes:
Several years ago we developed an appplication for HubSpot called voodev.
[‘auth_data’][‘appID’] = “175740”;
[‘auth_data’][‘userID’] = “5931973”;
https://app.hubspot.com/oauth/authorize?client_id=022616d3-853b-461c-92c1-64232d8eed3f&scope=contacts%20timeline&redirect_uri=https://app.spotlightr.com/authhubspot
The app appears to be removed from the marketplace. Our intention is to update and reactivate the application, but we have no way of accessing the developer account from which it originated (nor do we have a record of it.) We have the client secret keys and api keys from that account however.
Would appreciate someone pointing us to a contact person whom may be able to assist us.
I am sending you a PM with our next steps.