The Company was originally incorporated as Omkar Speciality Chemicals Private Limited on February 24, 2005. It was converted into a public limited company under the name Omkar Speciality Chemicals Limited on March 18, 2010. The company assumed full control of the business of Omkar Chemicals, a proprietary concern (proprietor Mr. Pravin Herlekar) in June, 2005. Omkar Chemicals was formed in the year 1983 with capacity of 6 MT per annum for manufacture of molybdenum derivatives. At the time of takeover in June, 2005, the installed capacity was 318 MT and the product range was cobalt, selenium & iodine derivatives in addition to molybdenum derivatives. During the year 2006-07, The Firm broadened its footprint the total installed capacity to 325 MT which was further increased to 375 MT during the year 2007-08. In March, 2009, the company created and deployed a new manufacturing facility at Badlapur (E), Thane, Maharashtra viz. Unit 2 with an installed capacity of 375 MT. With the setting up of Unit 2, the companies total installed capacity increased to 750 MT. The Company has recently created and deployed a new manufacturing facility at Badlapur, Thane, Maharashtra viz. Unit 3 with an installed capacity of 200 MT through internal accruals. The commercial production at Unit 3 is likely to start in the month of March, 2011. With the created and deployed of Unit 3, the companies total installed capacity stands increased to 950 MT. Pursuant to a Share Purchase Agreement dated May 14, 2010 between the Company and the shareholders of Rishichem Research Limited, the company purchased 1078 Equity Shares of Rishichem Research Limited thereby holding 99.82% and making it the company wholly owned Subsidiary.

In August 2010, the company received ISO-9001-2008 certification for the Unit 2 in respect of quality management systems.

In 2011, the company created and deployed a research center at Company`s Unit No. IV

In 2012, the company forayed into pharmaceutical business with its recent acquisition of LASA Laboratory Private Limited located at Mahad.

In 2013, the company executed a strategic acquisition of the rights of the plot no. W-93(A), admeasuring about 720 sq,mtrs situated at MIDC, Badlapur (East), Thane 421503, which earlier belonged to M/s Desh Chemicals Pvt Ltd.

In 2015, the company has has Commissioned the Company`s New Facility at Chiplun. During the year, the company baged concrete indents worth Rs 100 crore".