12 EHR Patient Recruitment & Feasibility Companies in 2026

Before a clinical trial can enroll its first patient, someone has to answer a more basic question: do enough eligible people actually exist, and where? An electronic health records feasibility provider answers that by querying real patient data — diagnoses, labs, medications, procedures — against a trial's inclusion and exclusion criteria, turning a protocol's assumptions into an actual count of matching patients before a single site opens.

The companies on this list offer EHR patient recruitment services for clinical trials, using structured and unstructured electronic health record data to assess feasibility, select sites, and identify and match individual patients. This is an unranked list — the order carries no judgment about quality or fit. Several also function as a real world data recruitment vendor, drawing on the same underlying health record networks to generate real-world evidence alongside recruitment support.

TriNetX

TriNetX runs a federated network of more than 170 healthcare organizations across 30-plus countries, giving pharmaceutical companies real-time access to longitudinal EHR data for protocol design, feasibility, and site selection without the data ever leaving its source institution. The company's TriNetX LIVE platform lets researchers query a global network reported at more than 300 million patients, and in 2026 it won a MedTech Breakthrough Award for connecting real-world evidence research, feasibility intelligence, and site selection into one workflow. Founded in 2013 and based in Cambridge, Massachusetts, TriNetX has reported cutting site identification time in clinical trials by roughly half compared with traditional approaches.

Elligo Health Research

Elligo Health Research gives sponsors direct access to more than 150 million known patients and their HIPAA-compliant healthcare data through its proprietary IntElligo technology, drawing on a network of more than 115 hospitals and health systems plus 300 healthcare- and research-based sites. Its PatientSelect model engages that network of networks to bring clinical trials into everyday healthcare settings, while its SiteSelect model and Research Partner Services help practices participate in trials without becoming full-time research sites. Founded in 2016 and based in Austin, Texas, Elligo transitioned CEO leadership from founder John Potthoff to Barry Simms in December 2023.

Clinerion

Clinerion's Patient Network Explorer queries anonymized, live EHR data from a global network of partner hospitals to support protocol optimization, site feasibility evaluation, and real-time patient search and identification. The company became a wholly owned subsidiary of TriNetX, and its hybrid-cloud, federated-server architecture allows queries across partner databases instantaneously without moving patient data off-site. Founded in 2008 and headquartered in Basel, Switzerland, Clinerion's network has been reported at various points to cover well over 100 million patients across roughly 20 countries, including significant clusters in Turkey, Poland, and Brazil.

BEKHealth

BEKHealth's AI-powered BEKplatform gives sponsors and CROs real-time visibility into more than 30 million patient records across 200-plus research sites and 1,000-plus trials, reporting more than 95% accuracy in matching sites and patients to inclusion/exclusion criteria. The platform ingests both structured and unstructured EMR data, including scanned notes and faxes, through more than 25 proprietary adapters, and the company states it can identify eligible patients within 24 hours in cases where studies had been stalled for years. Founded in 2020 and based in Kent, Connecticut, BEKHealth also operates the BEKnetwork, a free site-matching community connecting research sites with sponsors and CROs based on real, de-identified patient data.

NorthWest EHealth (NWEH)

NorthWest EHealth's FARSITE platform enables rapid, privacy-preserving feasibility queries across representative UK patient populations, and the company ran the world's first large-scale Phase III trial using data drawn directly from source electronic health records. In a November 2024 pilot, NWEH combined FARSITE with the UK's Clinical Practice Research Datalink, giving access to more than 18 million anonymized patient records for feasibility studies and find-and-refer recruitment without transferring data between organizations. Based in Manchester, England, and funded in part by UK Research and Innovation, NWEH counts GSK, Novartis, and PPD among its customers and became the first international collaborator in the FDA-adjacent NESTcc research network.

Dyania Health

Dyania Health applies medically interpretable natural language processing to unstructured electronic medical record data, extracting complex clinical data points that let researchers identify patients and biomarkers that structured fields alone would miss. The company's NLP system can redact and anonymize EMR data as part of its processing pipeline, aiming to keep patient identification work compliant while still supporting feasibility and recruitment use cases. Founded in 2019, Dyania Health is based in Cambridge, Massachusetts.

Haystack Health

Haystack Health's Haystack Enroll platform uses natural language processing to generate precision-matched patient lists from unstructured medical records, working from the premise that more than 90% of inclusion/exclusion insights sit outside structured EHR fields. The company positions its AI matching as a way to speed up patient enrollment specifically for precision medicine trials, where narrow biomarker or genomic criteria make manual chart review especially slow. Founded in 2022 and based in Seattle, Washington, Haystack Health focuses its enrollment platform on the unstructured-data gap that many EHR-based tools leave unaddressed.

OncoLens

OncoLens is used by more than 200 cancer centers across the US as an oncology treatment planning platform, combining that network with AI and NLP technology that identifies appropriate trial candidates directly within the planning workflow. The company's proprietary AI/NLP searches both structured and unstructured EMR data to flag eligible patients, then alerts the provider team within the same planning platform they already use for tumor board and treatment decisions. Founded in 2016 and based in Atlanta, Georgia, OncoLens positions patient identification as a byproduct of clinical workflow rather than a separate recruitment step.

Velionyx

Velionyx offers EHR-enabled patient recruitment and feasibility alongside EHR-to-EDC connector apps, eRegulatory binders, biomarker lab services, and IxRS, positioning itself around an integrated, compliant study workflow rather than a single point tool. The company's combination of recruitment and connector technology is designed to reduce the number of separate vendors a site or sponsor needs to coordinate across feasibility, enrollment, and data capture. Founded in 1998 and based in Milan, Italy, Velionyx serves clinical research organizations across multiple European markets.

Cedar Health Research

Cedar Health Research operates as both a multi-therapeutic clinical trial site and a patient network across the Dallas-Fort Worth Metroplex and Midland, Texas, integrating directly into the EMR systems of its partner community practices. The company uses machine learning to match candidates to trials by querying data across a unified database built from multiple large practice partnerships, rather than relying on a single practice's patient pool. Founded in 2019, Cedar Health Research is based in Dallas, Texas.

Aspen Insights

Aspen Insights offers a Population Analysis feature that lets users explore the demographics of patient cohorts connected through electronic medical records, paired with feasibility tools built to unlock data and streamline the recruitment process. The company positions its suite of products around enhancing the speed and efficiency of clinical trial recruitment through data analytics rather than outreach or advertising. Founded in 2019 and based in Fort Worth, Texas, Aspen Insights focuses its platform on EMR-connected cohort analysis as the starting point for recruitment planning.

Inteliquet

Inteliquet focuses specifically on cancer clinical research, using AI-enhanced technology and expert support services to match sites to trials and trials to patients with more precision than manual screening. Its OncWeb technology is used by community and academic research centers, integrated delivery networks, and hospitals, and the company positions its platform as a way to transform the patient enrollment journey specifically in oncology. Founded in 2010 and based in Memphis, Tennessee, Inteliquet combines its matching technology with support services aimed at oncology research centers of varying size and infrastructure.

Explore the full EHR patient recruitment landscape

The companies above represent a portion of a much larger field.

Diligent's platform includes over 125 eHealth Records for Patient Recruitment & Feasibility Vendors, many with Vendor qualification data available on demand. Book a demo to explore Diligent's full vendor discovery database.

This article is intended as an informational overview of vendors operating in this space. Inclusion on this list does not constitute an endorsement, recommendation, or qualification by Diligent.