Weʼre proud to share that StackOne has been recognized by Gartner as a Cool Vendor in the Cool Vendors in HR Technology (6 August 2025). According to the research: “Gartner has provided four examples of cool HR technology vendors using AI to transform HR processes. HR technology leaders can circulate this research and vendor examples among their peer HR leaders to raise awareness of AI in HR with these real-life solutions.”

We believe, being selected for the HR Technology category is a testament to the work our team has done and the momentum behind our platform.

Weʼve long admired how this program acts as a launchpad for disruptive products, validating a startupʼs vision and helping to accelerate adoption.

Why this matters

Independent validation of our approach

In our opinion, Gartner’s research emphasizes that Cool Vendors offer solutions that combine innovation with tangible business impact.  For HR leaders wrestling with integration sprawl, the message is clear: there’s a better way.  StackOne’s inclusion validates our belief that AI‑native integrations – built directly into enterprise systems rather than running through a third‑party hub – can transform how HR technology is deployed and experienced.

Tackling the integration challenge head‑on

Large organizations often run dozens of HR applications for payroll, recruitment, performance management, learning and more.  When those systems aren’t connected, users endure duplicate data entry, delayed reporting and a poor overall experience.  StackOne solves this problem by providing unified APIs and agent‑ready interfaces (including MCP servers, tool‑calling endpoints and retrieval‑augmented generation connectors) across popular HRIS, ATS, CRM, ERP and collaboration platforms. Today we support over 200 integrations and 3,000 agent actions, allowing customers to bridge data silos and automate complex workflows without compromising security.

Built for Enterprise scale and security

Unlike traditional integration hubs that store customer data, StackOne’s architecture embeds connectors directly into the systems themselves. Data flows in real time between applications while no data resides on StackOne, improving both security and data accuracy. This design has already accelerated the deployment of AI‑powered HR virtual assistants by simplifying how they connect to applicant tracking, candidate relationship management and video‑interviewing tools.  It’s also why HR leaders at large enterprises trust us to modernize their integration stacks.

A platform for the agentic era

As AI becomes embedded across the employee lifecycle – from sourcing and interviewing to onboarding and development – integration becomes more critical. Gartner notes that “one of the top emerging examples in HR technology is the HR virtual assistant (HRVA). A challenge in delivering HRVAs is connecting them to the various HR applications.” StackOneʼs AI‑native integration capability reduces time‑to‑value for these assistants, making them more accessible and useful across the organization.

What’s next

We’re humbled by this recognition and energized to keep pushing forward. To us, being named a Gartner Cool Vendor reinforces our commitment to expand our integration library, deepen our AI‑native tooling and partner closely with HR and IT teams to deliver seamless employee experiences.  None of this would be possible without our customers, partners and the talented StackOne team who have poured their expertise into every connector and API we ship.

We’re just getting started.  If your organization is struggling with HR technology fragmentation or looking to build AI‑powered employee experiences faster, book a demo: we’d love to talk!

Thank you to Gartner for the recognition, and to everyone who has supported us on this journey.

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Disclaimer

Gartner, Cool Vendors and the Gartner Cool Vendor badge are registered trademarks and service marks of Gartner, Inc. and/or its affiliates in the U.S. and internationally and are used herein with permission. All rights reserved. Gartner does not endorse any vendor, product or service depicted in its research publications, and does not advise technology users to select only those vendors with the highest ratings or other designation.

Gartner research publications consist of the opinions of Gartner’s research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.

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