As lawmakers in Washington rushed to pass a historic, nearly $2.3 trillion stimulus package last month, lobbying firms of all stripes lined up at the trough, pushing to secure bailout money, tax breaks and sweetheart deals for their clients. But disclosure reports show that one firm in particular, Brownstein Hyatt Farber Schreck, emerged as the first quarter winner—both in terms of the number of new clients it registered and the amount it pulled in from existing ones.

In total, Brownstein received more than $11 million from clients in the first quarter of 2020, according to TIME’s calculations based on disclosure filings. That’s a 21 percent increase over last year’s first quarter revenue. Between January 6 and April 28, the firm registered 33 new clients, according to disclosure filings. Seventeen of them—nearly 52 percent—registered with the firm solely for pandemic-related legislation. 

Brownstein’s biggest source of revenue in the first quarter was $960,000 from three separate entities under the umbrella of Apollo Global Management, a large investment company that Brownstein has represented for decades. In 2017, Apollo co-founder Joshua Harris advised the Trump administration on infrastructure policy and, according to the New York Times, discussed the possibility of a White House position with Trump’s son-in-law and senior adviser Jared Kushner. Brownstein received $520,000 from Apollo Management Holdings, $330,000 from Apollo Investment Management, and $110,000 from Apollo Management in the first quarter of 2020—roughly triple what Apollo’s various holdings paid Brownstein in the first quarter of 2019.

It’s unclear what exactly Apollo and other companies will gain by hiring Brownstein to lobby on their behalf, but history shows that such spending often pays off, usually in hard-to-track ways, like tax loopholes or regulatory exemptions inserted into legislation. A 2019 report by OpenTheBooks, a nonprofit government watchdog group, tracked a more obvious form of influence: public giveaways and subsidies to corporations. OpenTheBooks found that between fiscal years 2014 and 2017, Fortune 100 companies spent $2 billion on lobbying and, during that same period, received $3.2 billion in direct federal grants—a 60% return on investment by that narrow measure alone. (Fortune 100 companies also received an additional $399 billion in federal funding over the same years, mostly through federal contracts.)

This, of course, is nothing new. It’s how Washington has long worked. But as the country reels from the economic and public health effects of the coronavirus pandemic, critics say the arrangement will end up benefiting the most prominent and well-connected companies and punishing those without access to power, exacerbating the income inequality the pandemic has already reinforced.

“Most of the lobbyists who are engaging congress and the administration on the coronavirus relief are representing companies and large industries. They’re not representing people trying to get unemployment and healthcare,” says Lee Drutman, a senior fellow in the Political Reform program at the think tank New America and the author of The Business of America is Lobbying: How Corporations Became Politicized and Politics Became More Corporate. ”If you don’t have a well connected lobbyist your concerns won’t be heard in the same way.”

Brownstein, which is headquartered in the nation’s capitol, was well positioned to take advantage of the recent lobbying boom. Its biggest Washington-based competitor, Akin Gump Strauss Hauer and Feld, also did well, increasing its first quarter revenue by 18 percent compared to the first quarter of 2019, and netting at least ten new clients solely for pandemic-related legislation. (That number may higher, as the last disclosure the firm released was on April 17. Brownstein’s last disclosure was April 28). 

Brownstein, which began in 1968 as a Colorado-based law firm, has since 1995 become one of the most prominent bipartisan firms in Washington, filled with former Congressional aides to some of the highest ranking lawmakers. The firm’s managing partner and shareholder, Marc Lampkin, was an adviser to former House Speaker John Boehner, a deputy campaign manager for George W. Bush’s first presidential campaign, and general counsel for the House Republican Conference. Al Mottur, another former managing partner, is a longtime Democratic strategist who served on Hillary Clinton’s finance committee during her 2016 campaign.

Brownstein lobbyists working on behalf of the firms’ clients for COVID-related legislation include former aides to Senate Minority Leader Chuck Schumer and Senate Majority Leader Mitch McConnell, House Minority Leader Kevin McCarthy (when he was Majority Whip), and Sen. Tim Scott.

One new Brownstein client, Oakleigh Thorne, the CEO of GoGo, Inc., an inflight internet provider service says he expects to furlough 60 percent of his employees in May if his company doesn’t receive federal aid. The company is ineligible for the Paycheck Protection Program, but Thorne says he’s also hoping to access the Treasury’s $50 billion in grants and loans earmarked for the airline industry. Since GoGo, Inc., is a contractor to airlines, Thorne says he believes it qualifies. 

“Because we don’t really spend a lot of time negotiating the hallways of Washington, we needed some help to make sure we went about it the right way,” he says. “They have a really solid presence.”