When practices start to get serious about digital pathology adoption, one of the first things they consider is what type of whole slide scanner works best for them. This decision shapes a lot of your other digital pathology choices, and there are a lot of great options on the market out there. So, how to choose?
Below, we’ve compiled a list of top pathology slide scanner companies (in alphabetical order) to look into as you begin your search.
Software Considerations for Your Whole Slide Scanner
Before we get into scanner details, let’s take a moment to address an important consideration throughout your journey. A scanner is crucial, but the most important aspect of any scanner is its ability to function within your digital pathology tech stack because even the highest-quality hardware can become a bottleneck if the software around it creates friction. Pathologists depend on fast, intuitive image access; lab managers need reliable workflow tracking and LIS integration; and IT teams require systems that are secure, scalable, and easy to maintain. When software and scanner aren’t well matched, those needs compete instead of complement each other — slowing reads, frustrating staff, and undermining the ROI of your digital investment.
For that reason, we highly recommend looking into software partners that are scanner agnostic and truly support your pathologists in doing their best work. For example, Lumea’s Viewer+ digital pathology platform and BxLink LIS were designed this way, providing tools that optimize the entire digital pathology workflow end-to-end.
1. 3DHISTECH
3DHISTECH’s PANNORAMIC line is one of the most widely deployed scanner families globally, with a model range spanning from the entry-level PANNORAMIC Flash DESK DX to the high-throughput PANNORAMIC 1000 DX, which handles up to 1,000 slides. The scanners use a standardized optical system to keep image quality consistent across models, and each unit includes a self-calibration routine designed for continuous daily use.
The “DX” designation on these models reflects CE-IVD / IVDR marking for diagnostic use in the European Union; in the United States, 3DHISTECH scanners are used primarily in research and translational settings rather than for FDA-cleared primary clinical diagnosis. For European labs and US research groups looking for proven, high-capacity hardware with broad compatibility, the PANNORAMIC family is a strong option.
2. Epredia
Epredia is one of the newest additions to the FDA-cleared WSI landscape, with the E1000 Dx Digital Pathology Solution receiving 510(k) clearance in February 2025. What distinguishes the E1000 Dx is that Epredia sells it as a complete, packaged solution rather than just a scanner. The offering ships with the E1000 Dx Scanner, the E1000 Dx Image Management System (IMS), the E1000 Dx Viewer, a Barco MDPC-8127 medical-grade pathology display, and a 128 TB server. The scanner is designed for uninterrupted throughput, with continuous loading directly from a coverslipper, and an automated focus-quality algorithm that rescans out-of-focus areas without operator intervention.
3. Grundium
The Finnish company Grundium takes a fundamentally different approach to whole slide imaging. Rather than building one big autoloader for the central lab, Grundium builds compact, single-slide Ocus scanners small enough to put on every pathologist’s desk, in every satellite clinic, or in a courier bag. The Ocus 40 captures slides at 40x for detailed, diagnostic-quality imaging, while the Ocus 20 prioritizes speed at 20x for time-sensitive workflows like intraoperative frozen sections. The Ocus M extends the concept with a “microscope mode” that lets users navigate the slide live, much like a traditional scope. All Ocus scanners deliver images through a browser-based platform, which makes remote consultation, telepathology, and collaborative review effectively friction-free. In effect, Grundium positions the Ocus family as a hybrid between a digital pathology microscope and a traditional whole slide scanner: small enough to be a personal device, but capable of producing the high-resolution images a clinical workflow expects.
Grundium scanners are not currently FDA-cleared for primary clinical diagnosis under the FDA’s whole-slide imaging product code, but their accessibility and price point make them a popular choice for research, education, telepathology workflows, and as on-demand point-of-need devices that complement higher-throughput scanners in larger clinical environments.
4. Hamamatsu
Hamamatsu’s NanoZoomer family has been a fixture of digital pathology for more than fifteen years and remains one of the most widely deployed whole slide scanner lines in the world. The clinical workhorse is the NanoZoomer S360MD, which received FDA 510(k) clearance in September 2022 with a supplement in December 2023. The S360MD handles up to 360 slides per load at either 20x or 40x and is designed for the kind of consistent, high-throughput operation that mid-to-large clinical labs depend on.
The broader NanoZoomer lineup extends from the single-slide NanoZoomer SQ for education and small labs up through the research-focused S60 and S360, with optional fluorescence on certain configurations for translational and multiplex IHC work. Hamamatsu’s long-standing reputation for image quality makes the NanoZoomer family a frequent choice for labs that value reproducibility across instruments and over time.
5. Leica
Leica Biosystems, part of Danaher, has one of the largest installed bases of clinical whole slide scanners in North America, anchored by the Aperio family. The flagship Aperio GT 450 DX is purpose-built for high-volume clinical labs, scanning at 40x with continuous loading and a typical throughput of roughly 32 seconds per slide — and it received FDA 510(k) clearance in April 2024 (K232202). Its predecessor and still-supported sibling, the Aperio AT2 DX (K190332, May 2019), handles up to 400 slides at 20x or 40x and remains widely deployed. The lineup also includes the research-oriented Aperio VERSA for fluorescence and multiplex IHC, and smaller models like the Aperio CS2 for medium-volume use. Across the portfolio, Leica’s tight integration with the Aperio eSlide Manager image management software and a deep ecosystem of validated AI and image-analysis partners make it a relatively safe bet for labs that want a mature, well-supported clinical platform.
6. Philips
Philips holds a place in WSI history as the first vendor to receive FDA 510(k) clearance for primary diagnostic use, with the IntelliSite Pathology Solution cleared in October 2017 (K172174). The platform has been continuously maintained on the US market ever since, with six subsequent FDA supplements through March 2025 (most recently K243871) covering ongoing updates to the IntelliSite Pathology Solution 5.x family. Built around the Ultra Fast Scanner, the system handles up to 300 slides per load at 40x. For high-volume labs that value a long regulatory track record, Philips remains one of the most established choices.
7. Pramana
Pramana, distributed by Evident Scientific, takes a modular, AI-native approach to whole slide imaging. Their scanners are built around a system that lets users scale capacity by adding scan heads rather than swapping hardware, with autonomous slide handling and built-in image quality QC powered by edge AI. The platform supports both Pramana and Sakura baskets, includes rapid rescanning, advanced volumetric imaging, and real-time algorithm capabilities, and is designed to integrate cleanly with computational pathology pipelines.
In the United States, Pramana is positioned for research, translational, and pharma applications rather than primary clinical diagnosis, making it most compelling for labs where AI-driven analytical workflows are central.
8. Roche
Roche’s VENTANA digital pathology whole slide scanners pair high-resolution imaging with deep integration into Roche’s broader IHC and Navify Digital Pathology ecosystem. The VENTANA DP 200, a single-slide, on-demand scanner suited to frozen sections, urgent cases, and remote scanning, received FDA 510(k) clearance in June 2024 (K232879). The VENTANA DP 600 is the higher-throughput companion, scanning up to 240 slides at a time and aimed at labs scaling toward full digitization. Both scanners feature built-in calibration, dynamic focus technology, and minimal rescan rates for consistent image quality, and both use a tray-based slide movement and touch-free scanning workflow designed to reduce manual handling.
Choosing a Digital Pathology Scanner That Fits Your Lab
Selecting the right digital pathology scanner is a critical decision for any laboratory or pathology practice, and the companies highlighted in this article offer some of the best solutions available today. The companies highlighted in this article offer some of the best solutions available today. Each scanner is designed with specific features and capabilities to improve image quality, enhance workflow efficiency, and support the diverse needs of clinical and research labs.
Of course, the right scanner is only part of the equation. The practices that see the smoothest transitions to digital pathology pair great hardware with software that’s built to support the whole team, not just the scan. Lumea’s Viewer+ and BxLink LIS were designed to be scanner agnostic, so whatever direction you go, we’re here to help make it work. Reach out if you’d like to talk through what a full digital pathology workflow could look like for your lab.
As you make your decision, remember that successful digital pathology adoption requires high-quality tools that reduce friction, enhance buy-in, and naturally support your teams. Best of luck in your search!
Interesting article but I do not think it addresses the true top scanners. Digital Pathology is about capturing exacting data as fast as possible. The factors of this happening are the product sensor technology and the motion system. Some sensors can capture data while moving and some need to stop to capture data in a small zone both of these approaches have different motion challenges. Either type of sensor relies on the motion system to move in a precise serpentine motion over the cells which 90% of commercially available stage systems can not accomplish at sub-micron precision. These less precise systems need to do multiple scans and average the data which again is not precise only a mathematical estimation plus it adds unnecessary time to the process. Building motion systems for Digital Pathology for more than 15 years has given ALIO a unique vision and experience for data precision and motion performance.