Complex sentence: In 1990, Chisholm founded the John Chisholm Group, a strategic marketing consultancy for computer and software companies, and in 1992, Chisholm founded Decisive Technology Company which produced the first software for email surveys.
Split into simpler sentences: In 1990, Chisholm founded the John Chisholm Group, a strategic marketing consultancy for computer and software companies. In 1992, Chisholm founded Decisive Technology Company which produced the first software for email surveys.