Restore Google Rankings After Deindexing

Our service-based website sat comfortably on page one of Google until last October, when the home page was suddenly deindexed. Nothing in the site’s content or structure has changed since then, yet the domain still refuses to appear for even a branded query... (Budget: $30 - $250 CAD, Jobs: Algorithm Analysis, Google Analytics, Internet Marketing, Keyword Research, Link Building, Search Engine Marketing, SEO, Website Audit)