Who owns UKG? Ownership structure explained (2026)

UKG, short for Ultimate Kronos Group, is one of the largest workforce-management and human-capital-management software companies in the world, yet most people never see its ownership because it does not trade on any exchange. There is no market cap to check and no quarterly earnings call. Control sits with a small group of private-equity sponsors led by one firm.

The company exists because two long-established rivals were bought and then bolted together. Kronos, a workforce-management pioneer founded in 1977, and Ultimate Software, a cloud payroll and HR firm founded in 1990, merged in 2020 under common private-equity ownership. The deal put two of the biggest names in HR software under one roof and one controlling investor.

Understanding who owns UKG means following the money from that merger. The founders are gone from day-to-day control, the shares never went public, and the real power rests with the investors who financed the combination. That structure shapes everything from the company's push toward an eventual IPO to the cost-cutting it has pursued since.

UKG was formed on April 1, 2020, when Ultimate Software and Kronos Incorporated completed a merger first announced on February 20, 2020. The combined business adopted the Ultimate Kronos Group name, shortened to UKG, effective October 1, 2020. It is dual-headquartered in Weston, Florida and Lowell, Massachusetts, the former homes of Ultimate Software and Kronos respectively.

The two predecessor companies had deep roots. Kronos was founded in 1977 by Mark S. Ain, an MIT-trained engineer, and built the market for automated time and attendance systems. Ultimate Software was founded in 1990 by Scott Scherr and grew into a cloud provider of payroll and human-capital-management software under the UltiPro brand. Both were acquired by private equity before they were joined.

UKG sells cloud software for payroll, time and attendance, scheduling, and human-capital management to businesses across healthcare, retail, manufacturing, and government. The combined company employed roughly 12,000 people and generated about $3 billion in revenue at the time of the merger. Revenue has since grown to a reported figure of around $4.3 billion for fiscal 2023, with the company publicly targeting $5 billion by the end of fiscal 2025. These operating figures are company-reported or drawn from reporting rather than audited public filings, because UKG is private.

UKG is privately held. It has never conducted an initial public offering, has no shares listed on the NYSE or Nasdaq, and files no public financial statements. It is owned by a group of private-equity and institutional investors that took the two predecessor companies private and then merged them. This makes UKG a private company with its own board and capital structure, comparable in that respect to how Dell operated under private ownership before returning to public markets, rather than a wholly owned subsidiary of a single parent.

Neither founder controls UKG today. Scott Scherr stepped away after Hellman & Friedman acquired Ultimate Software in 2019, and Mark Ain had long since handed the Kronos chief executive role to his brother, Aron Ain. The founders' equity was bought out in the take-private transactions that preceded the merger, so present-day ownership runs through the investor group rather than through founder stakes. UKG does not publicly disclose a detailed capitalization table, which is consistent with its status as a private company.

UKG did not raise venture capital in the conventional sense. Its ownership was assembled through leveraged buyouts and a merger rather than a sequence of startup financing rounds. The table below sets out the ownership milestones that actually created the company, in place of the funding rounds a venture-backed startup would list.

Hellman & Friedman is the controlling shareholder. The San Francisco private-equity firm led the roughly $11 billion buyout of Ultimate Software in 2019, then engineered the 2020 merger with Kronos, which Hellman & Friedman had also backed. It holds an estimated stake near half of the company and drives strategy through its board control.

Blackstone is the largest minority investor, with a stake reported in the range of 20 to 25 percent. The connection runs deep enough that Jennifer Morgan, UKG's chief executive, joined from Blackstone, where she was global head of portfolio operations before taking the top job.

Three other institutions round out the group. GIC, Singapore's sovereign wealth fund, and Canada Pension Plan Investment Board, one of the world's largest pension investors, both hold minority positions carried over from the earlier transactions. JMI Equity, a growth-equity firm focused on software, is also an investor in the combined company. None of these minority holders controls UKG; voting power concentrates with Hellman & Friedman.

There is no public company structure to describe, but an IPO is a recurring subject of speculation. UKG has the scale that public markets look for, with revenue approaching $5 billion, and its private-equity owners will eventually seek an exit. Blackstone has signaled interest in taking larger portfolio companies public when conditions allow, and UKG shares change hands on secondary platforms such as Forge Global and Nasdaq Private Market, which points to investor appetite. UKG has not filed to go public as of this writing, so any IPO remains speculative rather than scheduled. Pinning a current number on the company means running a private-company valuation from estimated revenue and margins, because there is no live market price to read.

Jennifer Morgan is UKG's chief executive officer, a role she took in July 2024. She previously spent more than 16 years at SAP, where she became co-CEO in 2019, the first American woman to lead a company on Germany's DAX index. She then served as global head of portfolio operations at Blackstone and joined the UKG board in 2021 before being named CEO. Her appointment tightened the link between UKG and its second-largest investor.

Morgan succeeded Chris Todd, who had led UKG since July 2022 and spent 17 years across Ultimate Software and UKG. Todd himself had taken over from Aron Ain, the longtime Kronos chief executive who ran the combined company at its formation. Ain now serves as executive chairman of the board, which keeps a founder-adjacent figure in an oversight role even though he no longer runs operations.

The board is controlled by the investor group, with Hellman & Friedman holding the deciding influence and Blackstone represented as well. Because UKG is private, the full board roster and the precise equity split are not comprehensively disclosed, so any detailed list of directors beyond the named leaders should be treated as partly inferred rather than confirmed.

The most damaging event in UKG's short history was a ransomware attack detected on December 11, 2021, that took down the Kronos Private Cloud for several weeks. The outage stranded payroll and scheduling for large employers that relied on the platform, including well-known names across retail, hospitality, and transit. Some customers had to pay staff using estimated or manual methods while the system was offline, and the disruption ran into the following year. The incident became a case study in the operational risk of a single cloud platform failing, the kind of exposure a risk register template is designed to catalog and track.

The attack also exposed personal data, which triggered class-action litigation. In 2023, UKG agreed to a settlement of up to $6 million to resolve claims tied to the breach, with affected class members eligible to claim up to $1,000 for losses and the company committing additional spending to strengthen its cybersecurity. UKG did not admit wrongdoing as part of the settlement. The episode remains the clearest example of legal and reputational cost flowing from the company's infrastructure.

UKG has cut staff repeatedly since the merger. In July 2024 it eliminated about 2,100 roles, roughly 14 percent of its workforce, framing the move as a redeployment of resources toward artificial intelligence and higher-growth areas. In April 2026 it cut roughly 950 more jobs, about 6 percent of staff. Reporting has tallied more than 3,700 positions cut since 2020 across several rounds. The pattern reflects the margin discipline typical of private-equity ownership, where sponsors push portfolio companies to fund growth from efficiency gains ahead of a possible sale or listing.

UKG's private-equity ownership explains its priorities. Hellman & Friedman and its co-investors did not buy UKG to hold forever. They assembled it to build a larger, more profitable software company that could eventually be sold or taken public at a higher value. That goal drives the focus on revenue growth toward $5 billion, the repeated cost cuts, and the recruitment of a chief executive with public-company experience. Comparing UKG's investor-controlled cap table with how Workday is owned as a public company shows the difference: Workday answers to dispersed public shareholders, while UKG answers to a handful of sponsors.

For the investors, concentrated control is the point. With Hellman & Friedman holding a controlling stake and a friendly board, the firm can direct strategy without the friction a public company faces. That is a sharp contrast with widely held software peers such as SAP's dispersed public ownership or Oracle's founder-anchored share structure, where control is either diffuse or tied to a founder rather than a buyout firm. Mapping those rivals against UKG is the sort of exercise a competitive analysis template is built for.

For customers and employees, private ownership cuts both ways. It gives UKG room to invest without quarterly earnings pressure, but it also means less public disclosure about the company's finances, security posture, and long-term plans than a listed competitor must provide. The repeated layoffs and the 2021 breach both landed on a workforce and customer base that cannot read the company's full books. Until UKG files to go public, the people who use and build its products will keep depending on a company whose real decisions are made by its investors.

Jennifer Morgan has been CEO of UKG since July 2024. She previously served as co-CEO of SAP and as global head of portfolio operations at Blackstone, and she joined the UKG board in 2021 before taking the top job. She succeeded Chris Todd, and Aron Ain serves as executive chairman.

No. UKG is privately held and has never had an IPO. It has no ticker symbol and files no public financial statements. Its shares are held by a private-equity-led investor group, though limited quantities trade on secondary private markets.

UKG was created by merging two companies with two founders. Kronos was founded in 1977 by Mark S. Ain, and Ultimate Software was founded in 1990 by Scott Scherr. The two firms merged in 2020 to form UKG under common private-equity ownership, so no single person founded UKG itself.

Hellman & Friedman is the controlling shareholder, holding an estimated stake near half the company. Blackstone is the largest minority investor at a reported 20 to 25 percent, followed by GIC, Canada Pension Plan Investment Board, and JMI Equity. Hellman & Friedman holds the deciding influence on the board.

The 2020 merger that created UKG valued the combined company at $22 billion in enterprise value. UKG has not disclosed an updated official valuation since, and because it is private, any newer number comes from secondary-market trading or third-party estimates rather than a confirmed transaction. Its revenue has grown toward a targeted $5 billion for fiscal 2025.