A mid-size company is a business that falls between small and large enterprises in terms of employee count and revenue. Typically, these companies have between 100 and 999 employees and generate annual revenues ranging from $10 million to $1 billion. They often have more resources than small businesses, allowing for greater investment in technology and talent. Mid-size companies play a crucial role in the economy, contributing significantly to job creation and innovation. They often serve niche markets and can be more agile than larger corporations, allowing them to adapt quickly to changing market conditions and customer needs.