Which athenahealth Marketplace Vendors Are Actually Growing (2026 Data)

The one number in this category you can verify yourself

Every vendor selling into athenaOne practices publishes logos, interaction counts and funding announcements. Almost none publish growth, because growth is the number that cannot be reframed.

athenahealth solves this for you. Every Marketplace listing carries a practice-connection count — how many practices are actually connected to that product — published by athenahealth rather than by the vendor. Take two dated readings and you have a measured growth rate for the entire category, including us.

That is what this page is. The window is 22 May to 4 September 2026, 105 days.

The market baseline first, because it is the part that matters

Across the 532 listings that could be matched at both dates:

• Total practice connections went from 25,802 to 27,184, up 5.4%
• 223 listings grew
• 256 listings added nothing at all
• 53 listings declined

Roughly half the marketplace was completely static for three and a half months. Any growth number in this category should be read against that, not against zero.

The leaderboard

241 listings began the window with at least 10 practice connections. Below are the vendors an athenaOne practice is likely to be evaluating in this category, plus the fastest movers anywhere on the board, ranked by percentage growth. The full ranking of all 241 is reproducible from the listings themselves:

Two rows need a plain word of explanation rather than a percentage.

Weave opened its listing on 18 May 2026 at 4 connections and reached 94 by 4 September. We do not quote a growth rate for it, because a public company with a large existing base wiring already-signed customers into a new integration is a different event from acquiring practices. Weave agreed in August 2026 to be taken private by Francisco Partners.

Our own number, with its base stated: 17 to 40. A percentage off a base of seventeen is a real measurement and a small one. It is the highest growth rate on the marketplace and it is also twenty-three practices. Both are true, and a page that printed one without the other would deserve the scepticism it got.

What is growing tells you what practices are actually buying

Read the leaderboard by what the products do rather than by who is on it, and a pattern shows up that the front-desk framing hides.

Two of the seven fastest-growing listings on the marketplace never touch a ringing phone. Automated Prior Authorization by Develop Health went from 42 connections to 63, +50.0% — third-fastest of the 241 listings with a base of ten or more. Arintra, autonomous medical coding, went 21 to 30, +42.9%. Further down the same table, Keragon added 29 connections on workflow automation (119 to 148, +24.4%), Direct Care Billing by Hint Health added 15 (115 to 130, +13.0%), and Adonis added 3 on revenue-cycle work (23 to 26, +13.0%).

Meanwhile several large, well-known front-desk and patient-engagement listings were flat or falling over the same window.

The reading we take from it: the demand that is actually converting on this marketplace is administrative automation broadly — prior auth, coding, billing, records, the work that happens after the patient is booked — not the phone alone. A practice buying only a phone product is buying the thinnest slice of the problem, and buying prior auth, billing and the front desk separately means three vendors, three integrations and three seams for the work to fall through.

That is the case for doing the whole path in one integration, and it is why we scope custom athenaOne workflows rather than shipping a fixed feature list. It is also worth saying plainly: Develop Health and Arintra are growing because they are good at a real problem. The point is not that they are wrong. It is that the fastest-moving demand on this marketplace is in the back office, and the number of vendors who can reach it through a single athenaOne integration is small.

What the decliners tell you

The falls are more informative than the rises, because a marketplace connection is sticky. Practices do not disconnect an integration casually.

Tebra lost 81 connections, −10.8%, the largest absolute decline in the window, and the fall is steady across every intermediate snapshot rather than a single correction. Tebra sells its own EHR, so its commercial interest runs toward moving practices off athenaOne; its listing has not been updated since August 2023 and carries a 3.29 rating.

Kyruus Health fell 15, while being acquired by RevSpring, whose stated strategy points the product toward payments rather than front-office work.

Klara, Qure4u and Solv were each roughly flat to slightly down. For Klara that is consistent with a product that now lives inside a competing EHR vendor’s platform. For Qure4u it sits alongside the healthiest review stream in the category — 729 reviews at 4.84, 24 of them in the last 12 months — so read it as maturity rather than trouble.

Three of the biggest names here are not independent companies any more

This is the part a connection count alone will not tell you, and it matters more than any single month’s movement. The three largest patient-engagement listings that lost connections in this window have all been acquired, and in two of the three cases the buyer sells an EHR that competes with athenahealth.

PatientPop merged with Kareo in November 2021 to form Tebra. Tebra sells its own ONC-certified EHR and practice-management platform to independent practices — the same practices athenahealth sells to. A vendor whose parent company wants your EHR business has a structural reason not to invest in making your athenaOne experience better. The listing has not been touched since August 2023, and it is down 81 connections.

Klara was acquired by ModMed in February 2022 and is now sold as ModMed Patient Engagement. ModMed sells its own specialty EHRs. klara.com and klara.com/pricing both redirect to modmed.com, and the word “athena” does not appear on the page they land on. The listing has not been updated since February 2024 and has had no review in twelve months.

Kyruus Health agreed to be acquired by RevSpring, announced September 2025 and described on Kyruus Health’s own site as joining RevSpring’s connected care journey. RevSpring does not sell an EHR, so this is not a conflict of interest — it is a change of destination. RevSpring’s stated thesis runs from patient search to final payment, which pulls the roadmap toward billing and payments and away from front-office work.

The practical question for a practice is not whether these are good products. It is who decides what gets built next, and whether athenaOne is where that person is looking. An independent vendor that only builds for athenaOne answers that question differently from a product line inside a competing EHR company, and differently again from an asset inside a payments platform.

Funding is not traction

Three of the best-capitalized names in this space added no athenaOne practices at all in 105 days.

Hyro states it serves 2,500 hospitals, clinics and healthcare facilities. It holds 3 athenahealth Marketplace connections, unchanged across the window. Notable reports more than 380 million patient interactions and holds 5 connections, unchanged. EliseAI raised a $250M Series E in August 2025, grew from 150 to more than 300 employees, and passed $100M ARR — and added 7 athenaOne connections.

None of that means these are weak companies. It means enterprise health-system traction and athenaOne practice traction are different things, and a practice evaluating vendors should measure the one it is buying.

The honest counterpart: Assort Health raised a $120M Series C in June 2026 at a $1.2B valuation, reports total funding above $222M, and is genuinely converting on this marketplace — +16 connections, +27.6%, the strongest growth of any established voice AI vendor here. Capital and traction can coincide. They just do not have to.

Read the review stream alongside the connection count

Connections show adoption. Reviews show whether the listing is alive.

Over the same 105 days, only eight of the tracked listings gained a single review. Pretty Good AI went from 12 to 17, every one of them five stars — the only listing in the tracked set where that is true at double-digit review volume. Qure4u, with by far the largest review corpus in the category at 729, added 2.

At the other end: Klara’s listing has not been updated since February 2024 and has had no review in the last 12 months. Tebra’s has not been updated since August 2023, same story. Both carry the two lowest ratings among the large listings — 3.64 and 3.29, athenahealth’s own published figures.

What we are not claiming

• Not a smooth curve. The last month ran ahead of the window average — 29 connections on 3 August to 40 on 4 September, +11 in 32 days — against 0.22 connections a day across the full 105 days. We are not calling that a trend. On a base of forty a single multi-location group swings the number, so a one-month rate is noise in both directions. The 104-day figure is the one we publish.
• Not a customer count. Connections measure athenaOne presence, not company size. Phreesia holds 1,182 connections while reporting 4,744 total clients for the quarter ended 31 July 2026 — roughly a quarter of its book.
• Not the whole marketplace. 532 of 572 listings could be matched at both dates. Listings created mid-window, including Interactly, have no comparable start value.

How to use this when you evaluate vendors

1. Open the listing. athenahealth publishes the connection count and rating. Compare against the numbers here; they will have moved.
2. Ask for the trend, not the total. A large connection count earned in 2020 and a growing one earned this year are different products. Ask when the listing was last updated and when the last review was written.
3. Ask about endpoint depth. athenahealth exposes roughly 800 endpoints. Most vendors in this category connect ten to twenty. We connect 500+ athenaOne APIs. Ask every vendor for their number and for the list.
4. Separate company traction from athenaOne traction. A vendor can be excellent and still have nothing happening on this marketplace, which is what the Hyro and Notable lines above show.

If a vendor will not give you a growth figure, you can compute it yourself in about five minutes. That is unusual in healthcare software and worth using.