There are more cannabis businesses that actually touch the plant than there are microbreweries in the United States.

Of the estimated 21,000-33,000 companies involved in the cannabis industry, according to the latest data collected by the Marijuana Business Daily, 7,000 - 11,000 of the companies listed are dispensaries, recreational stores and wholesale cultivators.

And that's a conservative estimate. "The actual number of businesses could be much higher, given that many companies work with a variety of industries and might only have a client or two – or one project – in the cannabis industry," says the MBD.

Compare this with another fast-growing industry - the nationwide market of craft breweries, of which were are 4,225 at the end of 2015, according to the National Brewer's Association. The brewing industry employed around 43,000 Americans,and had a combined economic impact of more than $246 billion. While there isn't any comparable cannabis industry data available for previous years, we do know that the cannabis industry has grown from a $1.6-billion industry in 2013, to an estimated $3 billion in 2015.

For a breakdown of cannabis businesses in the United States, check out the chart from Marijuana Business Daily below.