When Instagram sold to Facebook for $1 billion in 2013, it felt like a massive sum of money.

Five years later, we seem to be numb to the billion-dollar acquisitions and valuations around us. WhatsApp was acquired for $19 billion. Uber is valued at $72 billion.

Yet, to build a billion-dollar company from scratch is still an incredibly difficult feat. Last year, CB Insights reported that the odds of becoming a unicorn – a company valued at $1 billion or more – was less than 1% for companies that had raised venture capital.

In 2018, there were 47 tech companies in the US to reach this unicorn status, according to data provided by PitchBook.

Others were included in PitchBook’s list, like the makeup company Pat McGrath Labs, the fancy healthcare provider One Medical, and the publicly traded weed dispensary company MedMen. There were also international companies. For our list, we selected US companies with technology at the core of their business.

Here are the 47 US tech companies that reached unicorn status in 2018:

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47. ThoughtSpot

Foto: sourceThoughtSpot/screenshot

What it does: Search and AI-based analytics

What it’s worth now: $1 billion

Year founded: 2012

46. WalkMe

Foto: Walkme CEO Dan Adika.sourceDan Adika/Twitter

What it does: Guides users to navigate websites and apps more efficiently

What it’s worth now: $1 billion

Year founded: 2011

45. Seismic

Foto: sourceSeismic

What it does: Software for sales team productivity

What it’s worth now: $1 billion

Year founded: 2010

44. Tresata

Foto: sourceTresata

What it does: Analytics software company

What it’s worth now: $1 billion

Year founded: 2011

43. Talkdesk

Foto: Talkdesk CEO Tiago Paiva.sourceTalkdesk

What it does: Cloud-based call center software

What it’s worth now: $1 billion

Year founded: 2011

42. JFrog

Foto: sourceJFrog/screenshot

What it does: Deploys software to the cloud

What it’s worth now: $1 billion

Year founded: 2008

41. OutSystems

Foto: OutSystems CEO Paulo Rosado.

What it does: Platform for “low code” app creation. Think Squarespace, but for mobile apps.

What it’s worth now: $1 billion

Year founded: 2001

40. SoundHound

Foto: sourceGoogle Play Store

What it does: Audio and speech recognition software

What it’s worth now: $1.05 billion

Year founded: 2005

39. Formlabs

Foto: sourceFormlabs

What it does: 3D printer manufacturer

What it’s worth now: $1.065 billion

Year founded: 2011

38. Rubicon

Foto: sourceRubicon/screenshot

What it does: Waste management and recycling

What it’s worth now: $1.066 billion

Year founded: 2008

37. Postmates

Foto: sourceAP

What it does: Food delivery

What it’s worth now: $1.076 billion

Year founded: 2011

36. Convoy

Foto: sourceConvoy

What it does: Tech-powered trucking services

What it’s worth now: $1.085 billion

Year founded: 2015

35. Tradeshift

Foto: Tradeshift CEO Christian LanngsourceTradeshift

What it does: Open-source trade platform

What it’s worth now: $1.1 billion

Year founded: 2008

34. Brex

Foto: sourceBrex

What it does: Corporate credit cards for startups

What it’s worth now: $1.1 billion

Year founded: 2017

33. Airtable

Foto: sourceAirtable

What it does: Spreadsheet and database product

What it’s worth now: $1.1 billion

Year founded: 2012

32. Lime

Foto: sourceGetty

What it does: Electric scooters and e-assist bikes

What it’s worth now: $1.1 billion

Year founded: 2017

31. Cohesity

Foto: Cohesity CEO Mohit Aron.sourceCohesity

What it does: Data infrastructure and storage

What it’s worth now: $1.1 billion

Year founded: 2013

30. Gitlab

Foto: sourceGitlab/screenshot

What it does: A single application for development operations, from project planning to source code management.

What it’s worth now: $1.1 billion

Year founded: 2011

29. TripActions

Foto: sourceTripActions

What it does: Corporate travel management

What it’s worth now: $1.2 billion

Year founded: 2015

28. Intercom

Foto: The Intercom cofounders.sourceIntercom

What it does: Customer messaging platform

What it’s worth now: $1.275 billion

Year founded: 2011

27. Starry

Foto: The Starry Station.sourceStarry

What it does: Internet for $50 per month

What it’s worth now: $1.29 billion

Year founded: 2014

26. Chargepoint

Foto:

What it does: Charging stations for electric cars

What it’s worth now: $1.3 billion

Year founded: 2007

25. PagerDuty

Foto: PagerDuty CEO Jennifer Tejada.sourcePagerDuty

What it does: Surfaces technical issues for companies

What it’s worth now: $1.3 billion

Year founded: 2009

24. Toast

Foto: sourceToast

What it does: Restaurant point-of-sale and management system

What it’s worth now: $1.4 billion

Year founded: 2011

23. Allbirds

Foto: sourceGetty

What it does: Merino wool shoes

What it’s worth now: $1.4 billion*

Year founded: 2014

*This valuation has been reported but never confirmed by the company.

22. Netskope

Foto: sourceShutterstock

What it does: Cloud software security

What it’s worth now: $1.4 billion

Year founded: 2012

21. Samsara

Foto: sourceSamsara

What it does: Fleet management system

What it’s worth now: $1.4 billion

Year founded: 2015

20. Freshworks

Foto: Freshworks CEO Girish Mathrubootham.sourceCourtesy of Freshworks

What it does: Customer support and sales software

What it’s worth now: $1.5 billion

Year founded: 2010

19. Asana

Foto: Asana CEO Dustin MoskovitzsourceAsana

What it does: Collaboration and productivity software

What it’s worth now: $1.5 billion

Year founded: 2008

18. ZipRecruiter

Foto: sourceZipRecruiter/Screenshot

What it does: Job listings and recruiting platform

What it’s worth now: $1.5 billion

Year founded: 2010

17. Dataminr

Foto: sourceDataminr

What it does: Discovers critical, breaking information before it’s in the news

What it’s worth now: $1.592 billion

Year founded: 2009

16. ServiceTitan

Foto: ServiceTitan CEO Titan Ara MahdessiansourceServiceTitan

What it does: Management software for home services companies

What it’s worth now: $1.6 billion

Year founded: 2013

15. Discord

Foto: Discord CEO Jason Citron.sourceDiscord

What it does: Voice, video, and text app designed for gamers

What it’s worth now: $1.65 billion

Year founded: 2012

14. Looker

Foto: sourceLooker

What it does: Database software

What it’s worth now: $1.7 billion

Year founded: 2012

13. Automation Anywhere

Foto: Automation Anywhere CEO Mihir Shukla.sourceAutomation Anywhere

What it does: Software that helps companies automate repetitive and routine tasks, which industry folks like to call “robotic process automation,” or RPA.

What it’s worth now: $1.8 billion

Year founded: 2003

12. HashiCorp

Foto: HashiCorp founder and CTO Mitchell HashimotosourceHashiCorp

What it does: Cloud computing infrastructure

What it’s worth now: $1.9 billion

Year founded: 2012

11. InVision

Foto: sourceInVision App

What it does: Digital product design platform

What it’s worth now: $2 billion

Year founded: 2011

10. Bird

Foto: sourceGetty

What it does: Electronic scooters

What it’s worth now: $2 billion

Year founded: 2017

9. Roblox

Foto: “Heroes of Robloxia”sourceRoblox

What it does: Online game creation platform

What it’s worth now: $2.4 billion

Year founded: 2005

8. Plaid

Foto: Plaid cofounders Zach Perret and William HockeysourcePlaid

What it does: Financial software that connects users’ bank accounts

What it’s worth now: $2.6 billion

Year founded: 2013

7. Procore

Foto: sourceProcore

What it does: Construction management software

What it’s worth now: $3 billion

Year founded: 2003

6. Circle

Foto: sourceCircle

What it does: Cryptocurrency investment platform

What it’s worth now: $3 billion

Year founded: 2013

5. UiPath

Foto: UiPath CEO Daniel Dines.sourceUiPath

What it does: Automates routine tasks for businesses. Similar to Automation Anywhere, it calls its technology, “robotic process automation.”

What it’s worth now: $3 billion

Year founded: 2005

4. Snowflake

Foto: Snowflake Computing CEO Bob Muglia.sourceSnowflake

What it does: Cloud-based data-warehousing

What it’s worth now: $3.95 billion

Year founded: 2012

3. DoorDash

Foto: sourceDoorDash

What it does: Food delivery

What it’s worth now: $4 billion

Year founded: 2013

2. Epic Games

Foto: sourceGetty

What it does: Video game developers and the makers of “Fortnite.”

What it’s worth now: $15 billion

Year founded: 1991

1. Juul Labs

Foto: sourceJUUL Labs

What it does: Electronic cigarettes

What it’s worth now: $38 billion

Year founded: 2017