Houston-based medical waste company Sharps Compliance Corp. on Wednesday reported a 23 percent revenue increase for its 2014 fiscal year, citing growth in almost all of its markets. The company, which sells mail-back containers for disposal of items such as syringes and unused medicine and incinerates narcotics and other items, also reported operating income of $1 million, compared to a $2.7 million loss the previous year. Sharps released its financial information for its fourth quarter and fiscal year that ended June 30. Public company The 20-year-old public company, whose clients typically include small-quantity waste generators such as home health care providers, reported revenue of $26.6 million in fiscal 2014, up from $21.