LinkedIn's surprising list of the 50 hottest startups for job seekers names Uber as No. 1

Airbnb is a San Francisco-based startup that pioneered the concept of allowing people to rent their spare rooms over the internet to travelers .

WeWork is a New York based real estate startup that offers small offices and shared office space to startups.

It is known for providing its tenants with the kinds of amenities large companies offer from coffee to yoga classes.

WeWork has raised $9.9 billion in venture investment and its investors value it at $20 billion.

Lyft is a San Francisco-based startup that pioneered the concept of ride sharing.

Slack is online chat software for businesses that has taken the work world by storm practically since Day 1.

It was founded by Stewart Butterfield who previously co-founded Flickr which was bought by Yahoo.

NIO is a Shanghai, China-based company that makes electric vehicles.

It made waves when it hired famous former Cisco exec Padmasree Warrior has its US CEO.

Rubrik is a Palo Alto, California-based startup that offers an innovative alternative for backup storage, a way to store data on the cloud for instant recovery.

Dropbox is a hugely popular choice for cloud storage based in San Francisco.

Houzz is a Palo Alto-based startup that helps home owners with decorating, design and landscaping ideas and matches them with professionals.

Convoy is a Seattle-based startup that offers software for the trucking and shipping industry.

General Assembly is a New York-based education startup that offers online and in-person classrooms in multiple cities. It offers courses like coding and design boot camps.

Stripe is a fintech startup based in San Francisco that makes it easy for startups to accept and manage online payments.

Glossier, based in New York, is a startup that creates popular luxury beauty products for women and sells them directly to consumers.

Flexport is a San Francisco-based startup that offers software to manage shipping and freight.

Aryaka Networks is a San Mateo, California-based startup that offers what's known as a content delivery network. This is software that makes a company's global computer network run faster.

Pinterest is a popular San Francisco based social network for sharing creative ideas by posting pictures.

Grail is a Menlo Park, California-based life sciences company that using state of the art scanning and analytics to try and detect cancer early when it can be cured.

It hired Google exec Jeffrey Huber as its CEO and has raised $1 billion of venture investment including an investment from Bill Gates.

Duo Security is an Ann Arbor, Michigan-based startup that offers what's known as cloud-based two-factor authentication software.

That's computer password/login software that requires two forms of ID, typically involving two devices like a PC browser and a phone app, before it authorizes access.

Udacity is a popular education startup, based in Mountain View, California, known for offering technical courses for learning to code or to study data science.

Udacity is also known for its famous founder Sebastian Thrun, founder of Google's R&D unit Google X where he led the self-driving car, Google Glass and other major projects.

G2 Crowd is a Chicago-based startup that allows businesses to share reviews and feedback on business software.

Blend is a San Francisco-based startup that helps mortgage lenders conduct the loan process through a mobile app.

Opendoor is a San Francisco-based real estate startup that promises to help people sell their homes in a few days via an app.

It's known for its founders Eric Wu who founded other real estate startups and sold them, and Khosla Ventures VC Keith Rabois, who hailed from PayPal and later from Square.

Cybereason is a Boston-based computer security startup that promises to identify hack attacks in real time as they are happening.

Cylance is an Irvine, California-based cybersecurity startup that uses artificial intelligence to predict and prevent hack attacks.

Founder and CEO Stuart McClure is well known in the security community for his popular book "Hacking Exposed."

CrowdStrike is a Sunnyvale, California-based cyber security startup that offers cloud security to protect "endpoints" like PCs and smartphones from hackers and malware.

Uptake is a Chicago-based startup that offers monitoring and analytics software for industrial machines.

Affirm is a San Francisco-based fintech startup that lets people choose to take on a loan and pay for items in installments at the point of sale.

It is known for its famous cofounder CEO, PayPal mafia member Max Levchin.

Katerra is a Scottsdale, Arizona-based construction industry startup that offers software for building design, logistics and purchasing.

Ring is a Santa Monica, California-based startup that offers internet-connected outdoor home security products like smart doorbells and cameras.

Convene is a New York-based startup that offers businesses meeting rooms and conference rooms and provides them with technical support.

Coursera, based in Mountain View, California, is a popular online education company that offers courses from over 140 universities and other educational institutions.

Stitch Fix is a San Francisco-based online personal shopping service for clothing and accessories.

It doesn't plan on being a startup much longer. Stitch Fix filed the paperwork for its IPO in October.

Wish is a San Francisco-based startup that makes a popular shopping app.

Robinhood is a Palo Alto, California-based stock brokerage startup that makes an app aimed at millennials for buying and selling U.S. listed stocks and ETFs with zero commission.

Darktrace is a Cambridge, UK-based cybersecurity startup that watches a company's computer network looking for signs of hackers and malicious activity by employees or other insiders.

Sprout Social is a Chicago-based startup that helps companies manage their social media activity.

Virgin Hyperloop One is the LA-based transportation company building a high-speed, next-generation way to travel first envisioned by Elon Musk and known as the "hyperloop."

Hyperloop One is not affiliate with Musk. He's got his own startup called The Boring Company. But it recently landed Virgin business mogul Richard Branson as a backer and changed its name to join his collection of Virgin-named businesses.

Read more: Virgin Group just invested in Hyperloop One — and Richard Branson now sits on the board

Snowflake Computing is San Mateo, California based startup that offers a form of big-data storage known as a "data warehouse" designed to run in the cloud.

It is also known for grabbing former Microsoft executive Bob Muglia as its CEO.

No. 39: ThoughtSpot is a Palo Alto, California-based startup that uses artificial intelligence to sift through big data and find insights.

Zenreach is a San Francisco-based marketing software startup.

Cohesity is a Santa Clara, California-based startup that provides tools for managing computer storage.

It was founded by Mohit Aron, an early Google employee who is best known as the cofounder of another storage trailblazing company, Nutanix.

Read more: This founder left his $4 billion company before the IPO because he had an even better idea

Pendo is a Raleigh, North Carolina-based startup that offers a tool for developers to track and analyze how people are using their apps.

Moda Operandi is a New York based online luxury fashion retailer that allows its members to pre-order ready-to-wear accessories and jewelry.

Databricks is a San Francisco-based startup who's founders created a popular big data crunching tools called Spark.

Read more: The world told 6 guys no one would buy their software: Four years later they have a $940 million company

Skuid is a startup based in Chattanooga offering a cloud-based developer tool that helps businesses quickly create their own custom apps without writing code.

Glint is a Redwood City, California-based human resources software startup best known for employee-engagement surveys.

Docker is a San Francisco-based startup that makes tools for developers. It is best known for creating a hot new programming market known as "containers."

Credit Karma is San Francisco-based consumer finance company best known for letting consumers monitor their credit reports.

Casper is a mattress startup based in New York that lets consumers order a mattress online and ships it in a box directly to them.

Elastic offers tools for developers, hosted on Amazon Web Services and Google Cloud and is best known for its search engine Elasticsearch.

It's also known for hiring a lot of remote workers. Although based in Mountain View, it hires people who work all over the world.