StackSearch delivers blazingly fast search-as-a-service, built "by developers, for developers." Their hosted solution, qbox.io, provides managed indexes on one of two worldwide clusters. Additionally, they provide custom deployments in public, private, and hybrid clouds striving to be for Elasticsearch what Cloudant is to CouchDB, MongoHQ is to Mongo, or Cloudera is to Hadoop. If that's too much to read, the short of it is they help manage large amounts of data by making it searchable extremely quickly.
The members of StackSearch approached Doc4 seeking a timeless and minimal way to illustrate their brand. The result utilizes a staircase effect echoing the entrance to the Library of Congress which is in and of itself a search for knowledge.