These are the 21 most highly-funded tech startups from the last quarter — and most of them you've never heard of

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The tech startup gold rush continues, and there's no stronger sign of the times than the amount of venture capital money being raised by these young companies.

In the first quarter of 2018, US venture capital funding across all industries grew 49% from the year before up to $22.1 billion, according to the Goldman Sachs Views from the Valley report, which is based on data from CB Insights.

Deal sizes grew dramatically as well, with investors funding seven unique mega-deals, valued at over $500 million each, during the quarter. In all of 2017, there were only two such mega-deals, according to the report.

While US investments were up 21% from the fourth quarter of 2017, the number of deals was nearly stagnant — up just 5% from the quarter before. The average deal size in the first quarter was $14.1 million, up from $12.3 million the quarter before, and far above the historical average of $8.2 million per quarter, according to the report.

Here are the biggest deals in internet and software in Q1 2018.

Scientific and engineering software: $968.6 million in total

Magic Leap: $461 million

The augmented-reality startup Magic Leap announced in March that it had raised $461 million from investors led by Saudi Arabia's sovereign investment arm.

Those millions are officially part of Magic Leap/s previously announced Series D, a $502 million round led by Singapore's Temasek. Combined together, the company's Series D now totals $963 million.

While the company has yet to release a product, it has raised over $2.3 billion to build its super-futuristic smart-goggles.

UiPath: $153 million

UiPath, a robotics automation software company, raised $153 million in March in a Series B that valued the company at $1.1 billion.

Accel, a previous investor, led the around along with new investors CapitalG and Kleiner Perkins Caufield & Byers.

UiPath, launched in 2015, sells software that supports the "deployment of software robots (digital workers) that perfectly emulate and execute repetitive processes."

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