All the tech startups that have taken steps toward going public in 2019 - and those rumored to be eyeing an IPO

Lyft

Company role: Ride-hailing app

Year founded: 2007

Headquarters location: San Francisco, California

Valuation: $15.1 billion

Total funding raised: $4.91 billion

Reported revenue: $909 million in first half of 2018 (The Information)

IPO status: Lyft confidentially filed paperwork with the Securities and Exchange Commission in December. Multiple news outlets have reported Lyft is readying to make its filing public as soon as the end of February, with a roadshow beginning the week of March 18.

PagerDuty

Company role: IT incident management platform

Year founded: 2009

Headquarters location: San Francisco, California

Valuation: $1.3 billion

Total funding raised: $173.7 million

Reported revenue: $100 million in "annual recurring revenue" as of September 2018 (Forbes)

IPO status: PagerDuty reportedly confidentially filed to go public with the SEC in January, but has faced delays due to the government shutdown.

Pinterest

Company role: Social content-sharing platform

Year founded: 2008

Headquarters location: San Francisco, California

Valuation: $12.3 billion

Total funding raised: $1.47 billion

Reported revenue: On track to hit nearly $1 billion in ad revenue anticipated in 2019 (Cheddar)

IPO status: Pinterest reportedly confidentially filed go to public in February, and has its eye on a June IPO.

Postmates

Company role: On-demand food delivery app

Year founded: 2011

Headquarters location: San Francisco, California

Valuation: $1.85 billion

Total funding raised: $680 million

Reported revenue: $250 million in 2017 (Recode)

IPO status: Postmates announced in early February that it had filed paperwork with the SEC to go public.

Slack

Company role: Workplace messaging and communication platform

Year founded: 2009

Headquarters location: San Francisco, California

Valuation: $7.13 billion

Total funding raised: $1.22 billion

Reported revenue: $221 million in 2017 fiscal year (CNBC)

IPO status: Slack announced in early February that it had confidentially filed to go public with the SEC. Slack is reportedly planning to go public through a direct listing rather than an IPO, following in the footsteps of Spotify. Its public debut is expected for the second quarter in 2019.

Uber

Company role: Ride-hailing service

Year founded: 2009

Headquarters location: San Francisco, California

Valuation: $72 billion

Total funding raised: $19.94 billion

Reported revenue: $11.4 billion in net revenue in 2018 (Bloomberg)

IPO status: Uber reportedly confidentially filed to go public in December. But in an interview with the Wall Street Journal in January, Uber CEO Dara Khosrowshahi said the company is in no rush to go public, and will "do it when we're ready."

Zoom

Company role: Video conferencing software

Year founded: 2011

Headquarters location: San Jose, California

Valuation: $1 billion

Total funding raised: $160.8 million

Reported revenue: Does not report financials, but reported 150% growth in revenue for 2017 (Zoom press release)

IPO status: Zoom is aiming to file to go public by the end of March, and could go public as soon as April, Business Insider first reported. Zoom filed confidentially with the SEC during the government shutdown in early 2019, which delayed its listing process.