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The highest-level executives are usually called " C-level " or part of the " C-suite ," referring to the 3-letter initials starting with " C " and ending with " O " ( for " Chief __________ Officer "); the traditional offices are Chief Executive Officer ( CEO ), Chief Operations Officer ( COO ), and Chief Financial Officer ( CFO ).

Chief administrative officer and Chief risk officer positions are often found in banking, insurance, and other financial services companies.

Technology companies ( including telecom and semi-conductor ) ( now IT sector companies also ) tend to have a Chief Technology Officer ( CTO ), while companies with a strong Information Technology ( IT ) presence have a Chief Information Officer ( CIO ).

In creative / design companies ( such as film studios, a comics company or a web design company ), there is sometimes a Chief Creative Officer ( CCO ), responsible for keeping the overall look and feel of different products, otherwise headed by different teams, constant throughout a brand.

Additionally, though 60 % of the Fortune 500 companies have a Chief Diversity Officer ( CDO ) or Diversity leadership position, this and many other C-level titles are not necessarily universally recognized as Corporate Officers, and tend to be specific to particular organizational cultures or preferences as employees.