Who are the largest EHR vendors?

According to a report by Technavio, the ~35 billion USD global EHR market will increase by 57.39 billion USD by 2030, with a CAGR of 15.1% between 2025 and 2030.

By most estimates, over 500 vendors are offering some type of EHR product.

Despite the size of the EHR market, a few vendors dominate in subscribers and revenue, controlling large shares across various niche markets. Who are the top EHR vendors? To identify them, it's key to examine market segments tied to specific care settings and major players in the overall EHR industry.

Hospital EHRs

According to Definitive Healthcare, Epic EHR and Oracle Health hold the largest share of the acute care hospital EHR market. Based on data from the Atlas Technology Install Dataset and HospitalView, their 2026 examination of inpatient hospitals in the US, market share can be divided as follows:

1. Epic: 43.9%
2. Oracle Health (Cerner): 18.9%
3. MEDITECH: 10.7%
4. TruBridge: 4.3%
5. WellSky: 3.4%
6. Vista: 1.7%
7. Netsmart Technologies: 1.7%
8. Paper Charts: 1.6%
9. MEDHOST: 1.6%
10. Other: 1.0%

Ambulatory EHRs

The ambulatory market offers more diversity in the number of vendors who hold a meaningful share of the ambulatory EHR market.

In recent years, patient care has shifted significantly, with ambulatory (outpatient) care growing in popularity as hospital visits decline.

This shift has fueled steady growth, with the U.S. ambulatory EHR market projected to reach 7.6 billion USD by 2030, according to Research and Markets.

1. Epic Systems Corporation 19.5%
2. eClinicalWorks 11.9%
3. athenahealth 6.9%
4. Oracle Health 5.4%
5. NextGen Healthcare 4.2%
6. ModMed 3.6%
7. Veradigm Inc 3.1%
8. Practice Fusion 3.1%
9. Nextech Systems 2.3%
10. Greenway Health 2.2%

The 2 biggest players in the overall EHR market

The EHR market has undergone significant changes over the years, but two key players continue to dominate - Epic and Oracle Health have solidified their positions in both hospital and ambulatory EHR markets. While MEDITECH still joins them as an acute-care giant, the vendor has been squeezed out of the latter (more on that later).

Epic's dominance in the acute market

Epic Systems has long been a major player in the acute care hospital EHR market. According to Definitive Healthcare’s recent analysis, Epic now holds a 43.9% share of the acute care market, up from 28% in 2019. This growth is driven in part by its integration capabilities, comprehensive clinical documentation tools, and a strong reputation for reliability.

At the time of this article's original publication, KLAS reported that Epic had the highest net market share gain, acquiring integrated delivery network hospitals, standalone hospitals, and new add-on customers. This trend continues, as Epic focuses on serving larger health systems looking to streamline operations and improve interoperability.

A strong showing in the ambulatory EHR market

Epic’s dominance extends into ambulatory care, where it again leads with a 19.5% market share.  However, Epic is famously expensive to buy, set up, and keep running. Large hospitals can easily afford these massive upfront costs, while small, independent doctor offices and standalone clinics usually do not have the cash flow to afford Epic’s heavy price tag.

Oracle Health's declining position in the acute care market

Oracle Health maintains its stronghold in acute care with an 18.09% market share. While its market share has seen some fluctuation, the company remains a key player, particularly among government institutions

Cerner’s historic partnership with the Department of Veterans Affairs (VA), encompassing 147 acute care and 20 specialty hospitals, underscores its influence in large-scale healthcare IT implementations.

Oracle's role in ambulatory care

Oracle Health has lost its notable foothold in this market due to customer dissatisfaction following Oracle’s $28.3 billion acquisition of Cerner in 2022, heavy corporate layoffs, and fierce competition from Epic Systems. As reported by KLAS, some large, well-known health systems and outpatient clinics have left the platform.

Allscripts’ historical influence

Once a leader in the ambulatory EHR space, Veradigm Inc. (formerly Allscripts) now holds a smaller market share, at just 3.1% in ambulatory settings. This marks a decline from previous years, reflecting increased competition from larger players like Epic and Oracle Health.

Veradigm continues to innovate, particularly in niche outpatient markets. By focusing on specialized solutions for smaller practices and outpatient providers, it retains a foothold in the market, albeit less significant than its competitors.

Smaller vendors in a consolidating market

While Epic and Oracle Health dominate, smaller vendors maintain relevance in the acute care market. These vendors often cater to smaller hospitals, rural healthcare providers, and specialty care facilities, offering tailored solutions that larger vendors may overlook.

Diversity in the ambulatory market

The ambulatory EHR market remains more fragmented than its acute care counterpart, with vendors like athenahealth, ModMed, and Greenway Health finding success in specific niches and UI improvements where others have fallen behind.

• Outpatient practices are experiencing extreme documentation burnout. eClinicalWorks noticed this and grew its share by aggressively integrating generative AI ahead of its peers.
• Because Practice Fusion and Greenway Health focus almost entirely on independent practices, their target customer base is naturally multiplying.