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ProQuest (Clarivate)

ProQuest is the Ann Arbor research database company founded in 1938 as University Microfilms. Clarivate acquired it for $5.3B in December 2021.

A2Hub Editorial· Rusty Roof Media· Updated May 4, 2026

ProQuest (Clarivate)

ProQuest is the deepest-rooted software company in Ann Arbor. It began in 1938 as University Microfilms, founded by Eugene Power to preserve dissertations and rare materials on microfilm for academic libraries. Eight decades later, the descendants of that microfilm business sit inside Clarivate Plc, which paid approximately $5.3 billion in December 2021 to fold ProQuest into a public research-information platform alongside Web of Science and Derwent. The acquisition is one of the largest exits in Ann Arbor history and the signal event that reframed the academic database business as a strategic asset for a multi-billion-dollar acquirer. ProQuest's Ann Arbor footprint did not evaporate after the deal. The former headquarters at 789 East Eisenhower Parkway continues to anchor meaningful engineering, product, and editorial work inside Clarivate's broader research-intelligence unit, and the company remains one of the more stable white-collar software employers in the region.

Quick facts

  • Founded: 1938 (as University Microfilms Inc.)
  • Founder: Eugene Power
  • Former HQ: 789 East Eisenhower Parkway, Ann Arbor, Michigan
  • Parent company: Clarivate Plc (NYSE: CLVT), headquartered in London
  • Headcount: Approximately 2,700 global employees at acquisition; roughly 550 Ann Arbor-based staff at the time of the Clarivate deal
  • Total funding / exit: Acquired by Clarivate in December 2021 for approximately $5.3 billion
  • Key investors (historical): Cambridge Information Group (long-time controlling owner); Atairos and other private capital participated in prior recapitalizations
  • Current leader: Matti Shem Tov served as ProQuest CEO through the acquisition; Clarivate CEO through 2025 was Matti Shem Tov, succeeded by Clarivate's current leadership team
  • Sector tags: research information, academic databases, library software, SaaS
  • Careers: careers.clarivate.com
  • Website: proquest.com
  • LinkedIn: linkedin.com/company/proquest

What ProQuest makes

ProQuest sells research information and discovery software to libraries, universities, schools, and corporations. The product line is wide but the through-line is consistent: aggregate a very large corpus of scholarly and primary-source content, sit a search and workflow layer on top of it, and license the combination to institutions that need their students, faculty, and researchers to find reliable material quickly.

The core ProQuest platforms include the flagship ProQuest research database (covering dissertations, newspapers, journals, ebooks, and primary sources), ProQuest Central, ProQuest Dissertations and Theses Global (which traces directly back to Eugene Power's microfilming work and remains the largest dissertations database in the world), and subject-specific collections for business, history, health, and the social sciences. The Ex Libris unit, acquired by ProQuest in 2015 for roughly $500 million before the Clarivate deal, brings Alma and Primo into the stack. Alma is the cloud-based library services platform used by most of the world's leading research libraries. Primo is the discovery layer patrons touch when they search a university library catalog online. Bowker, the US ISBN agency, also sits inside the portfolio, along with RefWorks for citation management and a growing set of AI-enabled research tools rolled out after the Clarivate acquisition.

The economic model is recurring subscription revenue from institutions with long memories and long budget cycles. Libraries renew year after year because the cost of switching research infrastructure is painful and the content catalogs are cumulative. That stickiness is what made ProQuest attractive to a public acquirer and what still makes the business attractive inside Clarivate's portfolio.

Under Clarivate, ProQuest content is increasingly bundled with Web of Science citation intelligence and with generative-AI research assistants, including ProQuest's Research Assistant product launched in 2024. The strategic bet is that scholarly publishers and universities will prefer AI built on a curated, licensed corpus rather than open-web scraped models.

The Ann Arbor story

Eugene Power founded University Microfilms Inc. (UMI) in Ann Arbor in 1938. The initial mission was prosaic: use microfilm to preserve and distribute scholarly materials, starting with doctoral dissertations, so that research libraries outside of the largest institutions could access them. Power's insight was that the academic record was fragmented, fragile, and hard to move. Microfilm made it portable. The University of Michigan's graduate school became an early partner, and UMI quickly became the clearinghouse for doctoral dissertations from across North America. That business became Dissertation Abstracts, and it still operates today as ProQuest Dissertations and Theses Global.

Xerox acquired UMI in 1962. The company passed through a string of corporate parents over the following decades, with each transition adding and shedding content portfolios. Bell and Howell Information and Learning was the immediate predecessor brand. Cambridge Information Group took control in 2006 and oversaw the ProQuest branding, the consolidation of several acquired properties, and the decade-plus run-up to the Clarivate sale.

Throughout those ownership changes, the Ann Arbor office stayed. The 789 East Eisenhower Parkway campus on the south side of Ann Arbor remained ProQuest's largest single work site, and a meaningful share of the engineering, editorial, and product teams have been based there for decades. That longevity matters for the local ecosystem. ProQuest seeded multiple generations of Ann Arbor software workers who went on to join or start other companies in town, and it trained the kind of content-operations and metadata-engineering talent that does not turn up in bulk anywhere else in the Midwest.

U-M is the natural institutional counterpart. The University of Michigan Library is one of ProQuest's oldest customers, and U-M researchers and graduate students interact with ProQuest platforms every day through the library's subscriptions. U-M alumni populate ProQuest engineering and product teams. The company's continuing presence on Eisenhower Parkway gives Ann Arbor a rare asset: a multi-decade anchor employer whose product is used by nearly every research institution on earth.

Funding and exits

ProQuest was never venture-backed in the Silicon Valley sense. It moved through corporate ownership rather than priced funding rounds. Xerox acquired UMI in 1962. Bell and Howell owned the Information and Learning arm through the 1990s. Cambridge Information Group purchased ProQuest in 2006 and held it for 15 years.

Under Cambridge, ProQuest made several strategic acquisitions. The most important was Ex Libris in 2015 for approximately $500 million, which brought Alma, Primo, and the core library-services-platform business into the portfolio. Other additions included SIPX, Innovative Interfaces (the 2019 acquisition for a reported $400 million range), Kanopy's licensing relationships, and smaller content and workflow properties. Atairos, a private investment firm, took a significant minority stake in 2020 that teed up a liquidity event.

Clarivate announced the acquisition in May 2021 and closed in December 2021, paying approximately $5.3 billion in cash and stock. For Clarivate the strategic logic was to stack ProQuest's content assets on top of its existing Web of Science, Derwent, and Converis research-analytics franchises. For ProQuest the logic was access to public-market capital and a larger distribution platform. The transaction ranks among the largest research-information deals ever completed.

Culture and hiring

ProQuest inside Clarivate hires across engineering (Java, Python, cloud infrastructure, search, AI/ML, data engineering), product management, content operations, editorial, sales, and customer success. The technical roles concentrate around discovery search infrastructure, large-corpus indexing, metadata pipelines, and the generative-AI stack Clarivate is building on top of curated content.

The work profile tends to suit people who like long-horizon, high-reliability software. ProQuest products are mission-critical for research libraries, which means change management is careful and uptime matters. That is not the right environment for someone who wants to ship five experiments a week, and it is exactly the right environment for someone who wants to build durable, content-rich systems used by millions of students and researchers.

Work model as of 2026 at the Ann Arbor office is hybrid under Clarivate policy. Compensation is competitive for the Midwest market and includes Clarivate public-company equity. Employee signal on Glassdoor across Clarivate and ProQuest reviews is mixed, with strong marks on work-life balance and peer quality and more variable signal on post-acquisition pace of organizational change.

Why they matter for Ann Arbor tech

ProQuest is the proof that Ann Arbor can produce and sustain a global software company across 80-plus years and multiple ownership regimes. The $5.3 billion Clarivate exit put a clean number on the value of the research-information business the city has quietly built. For a broader read on how the region accumulates these kinds of wins, see the history of Ann Arbor tech essay and the is Ann Arbor a tech hub pillar. ProQuest sits alongside Truven and Llamasoft / Coupa as the three largest Ann Arbor SaaS exits of the last decade, and it anchors the SaaS companies hub on a2hub.

FAQ

Who founded ProQuest? Eugene Power founded the company in 1938 as University Microfilms Inc. in Ann Arbor, Michigan. The original business microfilmed doctoral dissertations and rare library materials to make them portable and preservable.

When did Clarivate acquire ProQuest? Clarivate announced the acquisition in May 2021 and closed the transaction in December 2021 for approximately $5.3 billion in cash and stock. ProQuest now operates inside Clarivate alongside Web of Science and Derwent.

Where is ProQuest based? ProQuest's long-standing operational headquarters is at 789 East Eisenhower Parkway on the south side of Ann Arbor, Michigan. Clarivate's corporate headquarters is in London, but the Ann Arbor campus still hosts the largest ProQuest engineering and operations footprint.

How many people does ProQuest employ in Ann Arbor? Public reporting at the time of the 2021 acquisition indicated roughly 2,700 ProQuest employees globally and approximately 550 based in Ann Arbor. Exact post-acquisition headcount inside Clarivate is not broken out publicly.

What products does ProQuest sell? ProQuest sells subscription research databases (dissertations, journals, newspapers, primary sources), the Ex Libris library services platform (Alma and Primo), Bowker ISBN services, RefWorks citation management, and AI-enabled research tools integrated with Clarivate's Web of Science data.

Is ProQuest hiring? Yes. Open roles across engineering, product, content, and sales are listed on careers.clarivate.com, with Ann Arbor-based and hybrid positions posted regularly.