Company lists · Data refreshed September 2026
Top 25 Biopharmaceutical companies based in Chicago, United States
The Chicago biopharmaceutical companies directory lists 49 companies developing and commercializing medicines based on biological products. It includes 4,601 business contacts and 3,345 email addresses for organizations in the category, with San Diego as the single most-represented city among the companies on the list. The directory was updated in September 2026.
Biopharmaceutical companies discover, develop, manufacture, or commercialize medicines made from biological sources, including proteins, antibodies, vaccines, and cell or gene therapies. This list covers companies whose primary business includes the research, development, manufacturing, or commercialization of biopharmaceutical products. Ranked by team size, largest first. Data current as of September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest biopharmaceutical companies based in Chicago, United States
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Indirect evidence | 3,149 contacts → | |||
“EVERSANA® is a leading independent provider of global services to the life sciences industry.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Strong evidence | 481 contacts → | |||
“We're a growth-oriented biopharmaceutical company improving patient lives by developing and commercializing advanced products across a range of therapies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Indirect evidence | 189 contacts → | |||
“Founded in 2003, CG Life is a specialized pharma agency built for the unique challenges of bringing therapies for rare and hard-to-treat diseases to market, where traditional…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Indirect evidence | 131 contacts → | |||
“Founded in 2017 and based in Chicago, Meitheal is focused on the development and commercialization of generic injectable medications and, as of 2022, has expanded its focus to…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Indirect evidence | 110 contacts → | |||
“Leading North American Specialty Pharmaceutical Company focused on hematology, rheumatology, auto-immune disease, specialty oncology and pediatrics.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Indirect evidence | 96 contacts → | |||
“As a trusted partner for thousands of labs and biotech/pharma companies across the globe, VectorBuilder offers a full spectrum of gene delivery solutions covering virtually all…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Indirect evidence | 71 contacts → | |||
“EVERSANA CONSULTING delivers global consulting services to address challenges across the product lifecycle in the pharmaceutical and biotechnology industries.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Indirect evidence | 51 contacts → | |||
“Evozyne designs novel protein therapeutics to solve previously unaddressable patient needs.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Indirect evidence | 49 contacts → | |||
“At Apollo Care, we believe that access and analytics are the cornerstone of a commercial strategy that enables faster growth, gross-to-net optimization, and improved patient…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Indirect evidence | 41 contacts → | |||
“AltaThera is a pharmaceutical company using innovative science to improve patient care.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Indirect evidence | 25 contacts → | |||
“Paragon is a global life science leader that creates, builds and funds innovative biology-based companies, accelerating scientific breakthroughs to solve some of society's most…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Strong evidence | 23 contacts → | |||
“Established in 2020, Xentria works across biopharmaceutics communities creating innovative and authentic collaborations and partnerships that advance challenging drug development.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Indirect evidence | 22 contacts → | |||
“MAIA Biotechnology is a targeted therapy, immune-oncology company, focused on development and commercialization of first-in-class drugs with novel mechanisms of action that are…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Indirect evidence | 21 contacts → | |||
“Grove Biopharma Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Strong evidence | 19 contacts → | |||
“WCG KMR Group is a global leader in the provision and analysis of benchmarking and other data for the biopharmaceutical industry.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Indirect evidence | 8 contacts → | |||
“BiopharmIQ provides data and services to help sales/BD teams and investors.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Indirect evidence | 7 contacts → | |||
“The Illinois Biotechnology Innovation Organization (iBIO) is a life sciences industry association of more than 500 members comprised of life sciences companies, universities…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Indirect evidence | 6 contacts → | |||
“Offering comprehensive, plug-and-play commercial products and solutions for today's top pharmaceutical management teams.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Indirect evidence | 6 contacts → | |||
“INNOVATIVE BIOTECH AND PHARMACEUTICAL MARKETING COMMUNICATIONS FOR DEMANDING CLIENTS.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Indirect evidence | 5 contacts → | |||
“Opera Bioscience enables Biotech partners to produce high purity proteins and antibodies for therapeutic use, while also minimizing development and manufacturing timelines.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Indirect evidence | 5 contacts → | |||
“Zylem Biosciences is a preclinical biotechnology startup, pioneering the development of targeted medicines by employing rational design inspired by nature.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Indirect evidence | 4 contacts → | |||
“Improving human lives every day through life sciences product innovation and services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Indirect evidence | 4 contacts → | |||
“Like many industries, the supply chain in bioprocessing is becoming dominated by a handful of mega-suppliers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Indirect evidence | 3 contacts → | |||
“Sword Bio is a bioanalytical CRO committed to delivering projects with the best-in-class quality, science, service, and speed.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Indirect evidence | 3 contacts → | |||
“Amphix Bio is a preclinical stage company developing a new platform technology, Supramolecular Therapeutic Peptides (STPs), that modifies immunological response and initiates…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: biopharmaceutical companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names biopharmaceutical companies.
- Partial evidence
- Its own public description names part of biopharmaceutical companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name biopharmaceutical companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 49 biopharmaceutical companies based in Chicago, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,345 reachable decision-makers.
Free signup · no credit card
Biopharmaceutical companies based in Chicago, United States at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 49 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among biopharmaceutical companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Chicago, United States whose own description of what they do matches “biopharmaceutical companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names biopharmaceutical companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among biopharmaceutical companies, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 3,345 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Biopharmaceutical companies by metro in the United States
- Biopharmaceutical companies in San Diego195
- Biopharmaceutical companies in Boston127
- Biopharmaceutical companies in Cambridge122
- Biopharmaceutical companies in New York103
- Biopharmaceutical companies in San Francisco63
- Biopharmaceutical companies in Chicago49
- Biopharmaceutical companies in South San Francisco45
- Biopharmaceutical companies in Philadelphia43
- Biopharmaceutical companies in Princeton41
- Biopharmaceutical companies in Waltham41
- Biopharmaceutical companies in Miami40
- Biopharmaceutical companies in Seattle40
- Biopharmaceutical companies in Durham39
- Biopharmaceutical companies in Houston35
- Biopharmaceutical companies in Raleigh30
- Biopharmaceutical companies in Austin29
- Biopharmaceutical companies in Rockville28
- Biopharmaceutical companies in Los Angeles26
- Biopharmaceutical companies in Lexington25
Frequently asked
How many biopharmaceutical companies are in the directory?
The directory contains 49 biopharmaceutical companies based in Chicago, United States.
Where are most of the biopharmaceutical companies located?
San Diego is the single most-represented city among the biopharmaceutical companies on the list.
What contact data is available for biopharmaceutical companies?
The directory includes 4,601 business contacts and 3,345 email addresses for the listed biopharmaceutical companies.
Ready to reach these companies? Verified emails and direct dials for all 49 biopharmaceutical companies based in Chicago, United States. Start with a free account, no credit card.
Download this list →Related lists
Biopharmaceutical companies by geography
- Biopharmaceutical companies based in the United States
- Biopharmaceutical companies based in the United Kingdom
- Biopharmaceutical companies based in Germany
- Biopharmaceutical companies based in Italy
- Biopharmaceutical companies based in Canada
- Biopharmaceutical companies based in Brazil
- Biopharmaceutical companies based in France
- Biopharmaceutical companies based in Spain
- Biopharmaceutical companies based in Switzerland
- Biopharmaceutical companies based in Australia
- Biopharmaceutical companies based in the Netherlands
- Biopharmaceutical companies based in Mexico
Browse the directory
Browse: Companies home · Biopharmaceutical companies in United States · All United States lists · All Biopharmaceutical companies lists · New lists
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Biopharmaceutical companies based in the United States
- Biopharmaceutical companies based in the United Kingdom
- Biopharmaceutical companies based in Germany
- Biopharmaceutical companies based in Italy
- Biopharmaceutical companies based in Canada
- Biopharmaceutical companies based in Brazil