Here's a roundup of the most important deals in venture capital in the last week.

Start-ups

Stewart Butterfield, co-founder and CEO of Slack Photo by Bloomberg

Slack, maker of the popular business messaging app, is now worth more than $7.1 billion. On Tuesday Slack said it closed a $427 million funding round, padding its balance sheet as it takes on some of the world's biggest tech companies, including Google, Microsoft and Cisco. Slack is among the most highly valued tech start-ups, and like consumer companies Uber, Airbnb and Pinterest, it has no plans to go public until at least 2019. The company launched in 2014 and was valued at $5.1 billion almost a year ago.

Alphabet-backed One Medical has raised $350 million in growth funding from The Carlyle Group. A primary care group with offices in San Francisco, New York, Seattle and other cities across the country, One Medical accepts insurance from most carriers, and lets users without insurance pay out-of-pocket. In addition to online scheduling, One Medical offers a virtual medical team, a suite of mobile apps and has built its own electronic medical system rather than relying on a third party vendor.

Getaround, the car-share company that lets drivers rent their vehicles to strangers, raised $300 million in series D funding from investors including SoftBank Vision Fund and Toyota. The new capital brings the company's total capital raised to $400 million so far. Since starting in 2010, Getaround has steadily grown its car-share network to include several thousand vehicles in 66 U.S. cities. The deal is one of several in transportation for SoftBank, which has also invested in Uber and GM's Cruise Holdings. "SoftBank sees carsharing as an accelerating trend that will disrupt car ownership", said Michael Ronen, managing partner of SoftBank Investment Advisers. Sonder, which offers short- and long-term vacation rentals online, raised $85 million in a new round of funding to expand internationally. The round was led by Greenoaks Capital along with Greylock, Spark Capital and others. The four-year-old company is known as the anti-Airbnb. It leases, designs, furnishes and maintains all of the apartments and homes in its portfolio. Tiger Global led a $100 million series D investment into Root, an online auto insurer based in Columbus, Ohio. Root gathers driver data through mobile apps, and uses machine learning and data analytics to offer safer drivers a better deal.

Latch

Latch, a company that makes smart door locks, has raised $70 million in a series B round of funding. Latch's locks are used for businesses or homes that are accessed by multiple parties on a regular basis. The locks can be opened with a card key, code that's typed in at the door, or a digital key on a smartphone. Brookfield Ventures led the round joined by Lux Capital, RRE Ventures and several others. The company is partnering with package delivery businesses so that they can drop off packages without leaving them outside or on a public-facing doorstep. Alphabet's venture arm GV (formerly Google Ventures) led a $20 million investment into Carmera, a company working on "street intelligence," meaning software and data, that can help autonomous vehicles safely navigate around even congested city streets. The company is now working to create "high-definition base maps" of cities including New York, San Francisco, Seoul and Tokyo. Gecko Robotics raised $7 million to develop and sell more of its wall-crawling, industrial inspection robots. The robots are used to conduct safety checks, and other tests, on tanks, boilers, scrubbers, pipes and more. The robots can determine wall thickness, and detect cracking, pitting, and other forms of degradation in industrial settings so they can be repaired or replaced before they become unsafe or interrupt operations. Investors included Founders Fund, the Westly Group, Mark Cuban, and Twitch founder Justin Kan.

Funds and firms