We're extremely picky about our partnerships.  We test dozens of products and vendors before making selections, and then we only forge partnerships with companies when it can provide direct benefit to our clients.  Here are a few.

Sonicwall
Real security for any network

Star2Star
VoIP that works

Dell
Reliable business-class desktops and servers

1Password
The best password manager for teams 

Lenovo
The best PC laptops

Dropbox
Folders, shared and synced

Rackspace
Cloud servers in minutes

KnowBe4
Security training and phishing awareness for organizations