Mutual fund giants aren’t just interested in putting money to work in publicly traded companies. Increasingly, they also want to own a piece of red-hot start-ups.

Tech news site Re/code reported that Fidelity Investments is now in talks to buy a stake in meal-delivery start-up Blue Apron at a valuation of about $2 billion. But Fidelity isn’t alone.

Analysts at CB Insights recently looked at deal trends among five mutual-fund firms—BlackRock, Fidelity Investments, Janus Capital, T. Rowe Price, and Wellington Management. As the analysts note, outside of Janus, last year was the biggest ever for start-up deals for each of the firms, which completed six to 16 U.S. deals each.

For instance, after no U.S. tech deals in 2013, Wellington Management jumped into 12 deals, including a $71 million investment into real estate tech platform Redfin and a $40 million round into cybersecurity company Veracode.

T. Rowe Price doubled its number of private tech deals into venture-backed start-ups in 2014.

Fidelity, Janus, BlackRock and Wellington did not immediately return a request for comment.

In a statement to CNBC, T. Rowe Price emphasized that the company has always invested in “promising emerging growth companies” that can potentially add long-term value for clients.

The company said it pursues a thorough assessment of the prospects and past performance of the company, which typically includes meetings with management and a review of company financial information.

via More mutual funds are investing in tech start-ups.