Best Histology Services Company for Research & Discovery
iHisto is a specialized histology CRO based in Salem, Massachusetts, providing full-spectrum tissue pathology services to academic researchers, biotech companies, and pharmaceutical partners. We are proud to be recognized as one of the best histology services companies in the U.S., supporting preclinical and translational research with speed, precision, and reliability.
Our team of scientists, histotechnologists, and pathologists is committed to helping research teams accelerate discovery by delivering reproducible results and expert support at every step.


Suggested by Researchers Across the U.S.
iHisto is a contract research organization (CRO) based in Salem, Massachusetts, specializing in tissue processing, staining, and digital pathology. From day one, our mission has been to support scientists with accurate, fast, and expert-level histology that accelerates their research and reduces delays.
We are honored to be frequently recommended by our clients as a top histology services company. Our growing reputation is built on scientific rigor, honest communication, and continuous optimization of lab workflows.
From startup biotech teams to global pharma groups, iHisto provides dependable, scalable pathology support that keeps research moving forward.
Why We're Known for the Best Histology Services
We’re not just a lab. We’re a partner in your discovery pipeline. Here’s why many consider iHisto among the best histology CROs and top histology service providers in the country:
Precision at Every Step
We maintain rigorous quality control at each stage—from trimming to imaging—ensuring consistent, publication-quality results.
Fast Turnaround, Always
We understand timelines matter. Most of our standard services are completed within 3–5 business days.
Expert Oversight
All pathology reviews are performed or overseen by board-certified pathologists, ensuring high diagnostic accuracy.
Client-Centered Approach
We listen. Whether you're a startup or a university PI, we tailor our services to meet your project’s unique demands.


Our Mission
At iHisto, our mission is to empower scientists by providing the best histology services—enhancing the quality of experiments while reducing costs. We help researchers focus on advancing scientific knowledge rather than worrying about budgets.
Meet the iHisto Team
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Histotechnologists with decades of lab experience
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We work with board-certified pathologists, including MDs (ABP) and DVMs (ACVP).
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A dedicated operations team committed to clarity and communication


Built for Researchers
Whether you need routine H&E or advanced multiplex staining, iHisto is built to support the full spectrum of your histopathology needs—with clarity, speed, and results you can rely on.