2019 is shaping up to a big one for startup IPOs. Below are five of 2019’s most highly anticipated IPOs.

Uber/Lyft – The two largest ride-haling companies have made no secret of their competition with one another. Now, as each seems ready to go public, that competition looks to be headed to the trading floor. It was reported last month, Lyft filed to go public sometime in the first half of 2019. Not to be outdone, Uber also reportedly filed confidentially to go public in the first half of 2019 just two days after Lyft. With an estimated $120 billion valuation, Uber is far-and-away the larger player when compared to Lyft’s $12 billion valuation. However, with a 28% market share compared to Uber’s 70%, the competition between the two looks to be going nowhere soon.

Palantir – The secretive data-mining an analytics firm reportedly has been valued at of over $41 billion. According to The Wall Street Journal, Palantir is reportedly in talks with Credit Suisse and Morgan Stanley for an IPO that could happen in the second half of 2019. With many confidential government contracts in place, it’s tough to know exactly what value the company could fetch, but according to company CEO Alex Karp, the books sound ripe to make Palantir’s IPO one of 2019’s largest.

Slack – After having successfully fended off acquisition efforts by both Microsoft and SalesForce, the workplace messaging platform Slack is also reportedly contemplating one of 2019’s largest IPOs. With an estimated $7 billion valuation, and a newly appointed CFO, all indications seem to point to the company readying itself for an early 2019 IPO.

Pinterest – As one of the fastest growing competitors in its social media space, Pinterest was one of the only major social media platforms not to be racked by major scandal in 2018. And the company was rewarded handsomely for it. According to reports, in 2018 Pinterest saw revenues jump to more than $700 million. And according to The Wall Street Journal, with over 250 million monthly user, Pinterest is reportedly now looking at a $12 billion valuation.

AirBNB – After promising employees the company would go public in 2019 or 2020, it seems this may actually be the year the promise is realized. If AirBNB does go public it will certainly be one of the largest IPO’s of the year. While the home rental platform has not yet filed, anticipation remains high the company go be looking at one of the largest 2019 IPOs and at last reporting, AirBNB was valued at $31 billion.

Whether or not any or all of these company’s choose to go public in 2019 remains to be seen. What does seem certain however is each will assuredly be one of the largest IPO’s of 2019.