Alight, the Deerfield, Illinois benefits administration company listed on the New York Stock Exchange, announced on October 1, 2026 that it had acquired Abett, a Seattle startup that builds data infrastructure for employee health and benefits programmes. The terms of the deal were not disclosed.
Abett describes itself as a data layer that sits between large employers and the many vendors that run their benefits. Alight plans to combine Abett's technology with Alight Worklife, the platform employees use to enrol in and manage their benefits.
Founder and chief executive Mike Hanlon is quoted in the announcement as Abett's leader. Alight did not say how many Abett employees would join or whether the Abett brand would be kept.
What Abett built
Abett's main product, the Data Engine, brings together data from medical and pharmacy claims, benefits partners, point-solution vendors and other sources. Employers use it to integrate that information, reach employees with the right services and measure whether their benefits programmes are working. Abett says its customers include Fortune 500 employers, health solutions companies and benefits consultants.
An earlier product, Lockbox, was aimed at benefits teams and let them share, store and analyse data on the healthcare services their employees use. In 2024 coverage of its funding, Abett argued that cyberattacks such as the one on Change Healthcare, and US rules on health plan transparency, were pushing large employers to take more control of their own health plan data.
The company has also sold to health solutions businesses and consultants. Its Data Engine is pitched as a way to manage benefits data at scale, reliably and securely, and to measure the outcomes of the programmes an employer pays for.
“Abett was built to help organizations put benefits data to work, securely connecting information across the ecosystem so they can understand where there is a need, take action and measure what changed.”
The founders and the funding
Abett was founded in 2018 and is based in Seattle, according to CB Insights. Hanlon previously worked at Amazon and the University of Washington, and several early team members came from Amazon.
In 2024 the company raised an $11.6 million Series A led by Acrew Capital, with earlier investors GreatPoint Ventures, NextGen Venture Partners and Royal Street Ventures also backing it. Reports of its total funding differ: CB Insights puts it at $18.1 million, Dealroom at $23 million, and a 2024 article at $27 million. CB Insights also lists Alight itself among Abett's investors, which would mean the buyer already held a stake.
Why Alight is buying
Alight says it serves many of the world's largest organisations and more than 30 million people through benefits administration, enrolment, customer care and navigation services. That gives it frequent contact with employees at the moments they choose health plans, retirement options or leave.
Alight describes its business as unifying the benefits ecosystem across health, wealth, wellbeing, absence management and navigation. Its Worklife platform is meant to give employers a deeper view of their workforce and to guide employees through life events with personalised benefits management. Abett's data would feed that guidance with information from the claims and vendor side, which Alight does not hold on its own.
Chief executive Rohit Verma said benefits only create value when employees can find and use the right resources at the right time, and that Abett would strengthen Alight's ability to turn data into guidance and action. He said Abett would help employers connect their benefits ecosystem and support what Alight calls closed-loop navigation, where the company can see whether its guidance changed what an employee did.
Hanlon said Abett was built to help organisations put benefits data to work and measure what changed, and that Alight offers recurring chances to reach millions of people while they are making benefits decisions.
What happens next
Alight said it expects the deal to help employers understand how benefits are used and to judge the performance of the programmes and vendors they pay for. It also plans to offer Abett's data infrastructure to existing Alight clients and to others.
For Abett's investors the sale comes about two years after the company's Series A. Neither side said what the startup's revenue was, how many customers it had or what Alight paid, so it is not possible to say how the outcome compares with the capital raised.
