Chemaxon publishes no commercial price list, and that did not change when Certara bought the company in October 2024. The public record fills the gap. US federal agencies have bought Chemaxon software directly since 2010, and 38 awards worth about $1.89 million show what it costs: about $26,000 a year for JChem Base, Markush Search and Marvin for JavaScript across 100 users, $10,000 to $24,000 a year for a single program's licenses, and $24,000 to $33,000 a year to maintain an Instant JChem Enterprise deployment.
Those numbers are government purchases, so treat them as a floor and a shape rather than your quote. They are still the only signed figures anywhere, and they say something useful about how Chemaxon prices: per product, per user band and per deployment, with perpetual licenses available for some components.
How much does Chemaxon software cost?
On the federal record, a year of Chemaxon licenses costs from about $5,500 for a small Marvin and JChem Base renewal to about $26,000 for a 100 user bundle. EPA paid $77,800 for three years of JChem Base, Markush Search and Marvin for JavaScript at 100 users, which works out to roughly $260 per user per year. The National Institute of Neurological Disorders and Stroke paid $22,019 and then $22,239 in consecutive years for the same program's cheminformatics licenses, an increase of one percent.
| Term | Agency | What it covers | Award | Per year |
|---|---|---|---|---|
| Jan 2023 to Feb 2026 | EPA | Annual licenses: JChem Base, Markush Search, Marvin for JavaScript, 100 users | $77,800 | about $25,900 |
| Jul 2023 to Jun 2024 | NIH | JChem Oracle Cartridge and Marvin JS, annual renewal | $10,490 | $10,490 |
| Sep 2023 to Sep 2024 | NIH (NINDS) | Chemaxon licenses for two preclinical screening programs | $23,865 | $23,865 |
| Sep 2016 to Sep 2017 | NIH (NINDS) | Cheminformatics licenses | $22,239 | $22,239 |
| Sep 2015 to Sep 2016 | NIH (NINDS) | Cheminformatics licenses | $22,019 | $22,019 |
| Jun 2015 to May 2016 | EPA | Marvin for JavaScript and JChem Base, annual renewal | $5,550 | $5,550 |
Two larger awards sit outside that table because their scope is wider than a license line. The US Patent and Trademark Office awarded $571,050 in August 2025 for two years of cheminformatics software and maintenance support, the largest Chemaxon award in the record. The NINDS screening programs moved to a three year award of $157,625 in September 2024, covering both of its preclinical screening platforms. Neither describes the component list, so we do not divide them into a per user rate.
What does Instant JChem Enterprise cost to maintain?
EPA has renewed service and support for Instant JChem Enterprise, Chemaxon's desktop and shared chemical database application, since at least 2017. It paid $24,130 for 2017, $27,750 for 2018, and then moved to longer terms that work out to about $28,400 and about $32,800 a year. That is roughly 36 percent above the 2017 award, a little over 4 percent a year, and it is the clearest renewal trend we have for this vendor.
| Term | Award | Per year |
|---|---|---|
| Feb 2017 to Feb 2018 | $24,130 | $24,130 |
| May 2018 to May 2019 | $27,750 | $27,750 |
| Jun 2019 to May 2022 | $85,215 | about $28,400 |
| Sep 2022 to Sep 2026 | $131,237 | about $32,800 |
If your own renewal for a similar deployment arrives far above that line with no change in users or components, the public record is a reasonable thing to put on the table.
Does Chemaxon sell perpetual licenses?
It has. EPA bought perpetual licenses from Chemaxon several times between 2010 and 2017, usually for a single component with a first year of support included. Four users of the Instant JChem Enterprise package cost $11,760 in 2014; Standardizer cost $22,150 in 2013; the NMR Predictor plugin cost $10,000 in 2017. Perpetual licenses still carry a yearly maintenance fee if you want upgrades and support, which is what the Instant JChem series above is.
| Date | What it covers | Amount |
|---|---|---|
| Feb 2010 | 10 users, perpetual license | $11,400 |
| Apr 2012 | JChem for Web Services, perpetual | $7,425 |
| Nov 2013 | Standardizer, perpetual | $22,150 |
| Oct 2014 | Instant JChem Enterprise package, perpetual, 4 users | $11,760 |
| May 2017 | NMR Predictor plugin, perpetual | $10,000 |
What decides a Chemaxon quote
Which products. Chemaxon is a toolkit company as much as an application company. Marvin draws and displays structures, JChem handles chemical search and registration in a database, calculator plugins return pKa, logP and similar properties, and Design Hub and Instant JChem sit on top as applications. The 2023 EPA award lists three components by name; a quote that bundles eight is a different purchase.
How many users, and who they are. The 100 user EPA bundle is cheap per head because most of those users only draw and search. If your team is five chemists who all need registration and calculators, expect a higher rate per person and a smaller total.
Where it runs. The JChem cartridges plug chemical search into an existing Oracle or PostgreSQL database, and the NIH renewal for the Oracle cartridge and Marvin JS is its own line. If the goal is mostly letting colleagues ask everyday questions of that database, rather than structure search, an AI data analyst that writes the SQL for them is a smaller purchase than another chemistry seat. Web services and server use are licensed differently from a desktop seat, so ask for those terms in writing.
Academic or commercial. Chemaxon introduced a free academic license in 2004. Today, under Certara, academics get individual Marvin Cloud plans with a 14 day trial and an institutional discount on request, and none of that applies to a company. A biotech pays commercial rates.
Did Certara change Chemaxon pricing?
Not visibly, yet. Certara completed the acquisition in October 2024 and said Chemaxon expected more than $20 million of software revenue that year. Federal awards since then, including the September 2024 NINDS award and the August 2025 USPTO award, are still recorded to Chemaxon LLC, and the most recent, a $17,500 fixed price award in September 2026, gives no product detail. What has changed is the sales channel: academic pricing now runs through Certara's pages, and Certara has said it plans to build Chemaxon's structures and predictors into its own platforms, such as D360. Expect bundle offers that mix the two catalogs.
Is Chemaxon worth it for an antibacterial program?
For the infrastructure, often yes. A registration system with proper structure search, standardization and a drawing tool your chemists like is worth paying for once a compound collection grows past a spreadsheet, and Chemaxon's prices on the public record are modest next to modeling suites. By our reading of the same kind of evidence, a single MOE token costs $7,250 to $11,070 a year and ADMET Predictor runs near $19,000 to $20,000 per seat.
What Chemaxon does not do is tell you which of those registered compounds will inhibit Pseudomonas aeruginosa or Acinetobacter baumannii. Its calculators return physicochemical properties, which matter for Gram-negative entry but do not add up to a MIC. That answer comes from a model trained on antibacterial activity data, which most AMR teams do not have in house.
Where a narrow tool fits next to Chemaxon
Paste a structure or a peptide sequence into the tool above and a predicted MIC band comes back for each organism in the panel, with an S, I or R call, the resistance mechanism expected to limit it, and a confidence level on every row. Lab is $149 a month, or $1,788 across a year. If your compounds already live in a JChem database, Discovery at $499 a month includes the REST API, so the predictions can be written back next to each registered structure. The details are on antibacterial screening API, triage of a whole purchased library is on compound library screening software, and the category view of who publishes prices is on drug discovery software cost.