The outside company the Yankees are working with this offseason is no longer a mystery.

Zelus Analytics, an operation whose cofounders include a pair of former Dodgers executives, is the group that the Yankees have brought on as they review their own analytics process, The Post has confirmed, following a season that general manager Brian Cashman described as a “disaster.”

The Athletic first reported the hire on Thursday.

Hal Steinbrenner had indicated back in August that this was going to be part of the Yankees’ organizational deep dive, telling the Associated Press that they were “looking to bring in possibly an outside company to really take a look at the analytics side of what we do.”

According to its website, Zelus has built “the world’s leading sports intelligence platform … to help the professional teams in our exclusive partner network compete and win championships.”

Two of the company’s cofounders are CEO Doug Fearing, who previously founded the Dodgers’ research and development department, and principal data scientist Dan Cervone, who formerly served as the Dodgers’ director of quantitative research. Zelus’ vice president of baseball and basketball is Andrew Galdi, who founded the Phillies’ research and development department.

According to a 2021 profile on the company by The Athletic, Zelus sells its “knowledge and mathematical models” to a maximum of six MLB teams (one per division).

The story also reported that the Braves, Rays, Giants and White Sox have all previously partnered with Zelus.

“We fundamentally help teams use their data to win more games,” Fearing told TechCrunch in October, noting that the process involved projecting and improving player and team performance.

“And that’s through using all of the complex proprietary data sources that teams have access to build models that contextualize historical performance, that project future performance that help with both strategic decision making around player acquisition … and then even getting into tactical and in-game decision making like who’s the best matchup.”

The Yankees’ analytics department, led by assistant general manager Mike Fishman, has come under increased scrutiny after a number of recent trades backfired and the team stumbled through an 82-win season this year, its worst since 1992.

On the final day of the regular season, Aaron Judge said the analytical information and resources the Yankees provided were “great” but indicated the application of the data needs to be improved.

“I think it’s just about how we use them and how we value them is an aspect that maybe we need to look at again,” Judge said. “I think the Yankees are top-notch in the numbers we get. All that, it’s great. I think we’re the best in the game at that. But I think it’s now about funneling those down to the players in the right format.”

“I think it’s just looking at the right numbers,” Judge added. “You get a lot of numbers, but I think maybe we might be looking at the wrong ones. We need to maybe value some other ones that some people might see as having no value, but when you’re playing 162 games and you gotta grind and play through things, I think there’s certain things you can’t put a number on.”