The IPO markets continue to be exciting with a host of brand names working their way to pricing. While there are many smaller offerings this week, the larger, "headline" IPO's in addition to the beginnings of earnings season will make it difficult for those names to get investors' attention.

Uber (UBER  ) officially filed their paperwork to raise $10 billion last week but at a lower valuation than previously planned. Investors expect a launch in early May.

This week, while Uber continues to steal the headlines in the IPO world, there are still others that will come to the market with big names in their own spaces. The most well known name and the largest offering of the week will be from Pinterest (PINS  ). Ranked as one of the top social platforms here in the States with it's unique pinboard style photo sharing layout the company has decided to list on the NYSE. They are looking to raise $1.2 billion and will offer 75 million shares at an initial range of $15 -$17. This would give them a $10 billion valuation with about $750 million in sales over the last year.

Zoom Video Communications (ZM  ) is another major player in it's category that will launch this week. If you've ever been on a video conference call it's likely you were using zoom. The company started back in 2011 as one of the early, cloud based web conferencing platforms and has $330 million in sales over the last year. They will offer 21 million shares at a range of $28 - $32 in hopes of raising $625 million. Investors will be more critical of this offering at such a rich valuation. With current pricing the company would come to market at an $8.7 billion valuation.

Finally, Greenlane Holdings (GNLN  ) will attempt to compete with the trendy IPO's this week with one of their own. The company is the latest way to invest in the cannabis market as they are a distributor of vape products and accessories. The company which has been around since 2005 has $179 million in sales over the last year and will offer 5.3 million shares at a range of $14 - $16. This would give them a respectable valuation of about 3 times sales at $620 million.