As of 7.x-1.0-rc1 Open Outreach can be downloaded fully packaged from its project page on drupal.org. Earlier versions of Open Outreach are hosted on Github. You can also build Open Outreach yourself--see the developer documentation.
Paid support in helping to build or customize Open Outreach sites is available through Chocolate Lily Web Projects.
A number of web hosts now offer customized Open Outreach hosting. Visit the hosting page to see what is provided and costs.