Company lists · Data refreshed September 2026
Top 25 Biotherapeutics companies based in Waltham, United States
RevenueBase identified 40 company matches for biotherapeutics companies associated with Waltham, United States as of September 2026 and tracks 5,218 professional contacts across them, including 3,580 with verified work emails. Across the United States, San Diego is the largest hub for this category (187 companies); Waltham has 40.
This list covers company matches for biotherapeutics companies associated with Waltham, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 biotherapeutics companies based in Waltham, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,254 contacts → | ||||
Exact match “Repligen, a global, bioprocessing-focused life sciences company, provides innovative solutions for the advancement of biotherapeutic manufacturing.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 823 contacts → | ||||
Exact match “Apellis is now part of Biogen.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 497 contacts → | ||||
Exact match “Ardelyx is a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 361 contacts → | ||||
Exact match “ElevateBio is a technology-driven advanced therapy contract development and manufacturing organization (CDMO) powering the creation of life-transforming therapies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 326 contacts → | ||||
Exact match “Sobi is an international specialty healthcare company dedicated to developing treatments and extensive patient support networks for people with rare and difficult to treat…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 282 contacts → | ||||
Exact match “Viridian is a biopharmaceutical company focused on engineering and developing potential best-in-class medicines for patients with serious and rare diseases.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 190 contacts → | ||||
Exact match “TScan is dedicated to creating life-changing T cell therapies for patients by unleashing the untapped potential of the human immune system.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 159 contacts → | ||||
Exact match “Zenas is a clinical-stage global biopharmaceutical company committed to becoming a leader in the development and commercialization of transformative therapies for patients living…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 146 contacts → | ||||
Exact match “Visterra is a clinical stage biotechnology company committed to developing innovative antibody-based therapies for the treatment of patients with kidney diseases and other…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 101 contacts → | ||||
Exact match “At Ventus, we are pioneering a unique approach to structure-based drug discovery to address biologically validated, but difficult-to-drug targets.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 96 contacts → | ||||
Exact match “Spyre Therapeutics is a clinical-stage biotechnology company that aims to create next-generation inflammatory bowel disease (IBD) and other immune-mediated disease products by…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 95 contacts → | ||||
Exact match “Dragonfly Therapeutics is a clinical-stage biopharmaceutical company committed to discovering, developing and commercializing therapies that use its novel multispecific antibody…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 89 contacts → | ||||
Exact match “Xilio is a Waltham, Massachusetts-based clinical-stage biopharmaceutical company focused on defeating cancer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 62 contacts → | ||||
Exact match “We are advancing verekitug, a clinical-stage monoclonal antibody targeting an upstream driver of inflammatory response.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 57 contacts → | ||||
Exact match “We know that drug development is both an art and a science.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 53 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 52 contacts → | ||||
Exact match “Mustang Bio, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 50 contacts → | ||||
Exact match “Orionis Biosciences is a life sciences company pioneering technological innovation in genome-scale drug discovery and tunable molecular design of novel therapeutic drug modalities.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 48 contacts → | ||||
Exact match “Crescent Biopharma’s vision is to build a world leading oncology company bringing the next wave of therapies for cancer patients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 39 contacts → | ||||
Exact match “Mythic Therapeutics is a product-platform company that is pioneering a powerful new approach to improving the effectiveness of antibody-drug conjugates (ADCs) and other…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 36 contacts → | ||||
Exact match “Sironax is a clinical-stage biotechnology company developing transformative therapies for neurodegenerative, inflammatory, immunologic, and metabolic diseases.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 29 contacts → | ||||
Exact match “Driven by science and passionate about advancing patient care, DynamiCure is translating breakthrough insights on immuno-normalization into a pipeline of innovative antibody…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 29 contacts → | ||||
Exact match “Immunitas is committed to discovering and developing novel, differentiated therapeutics for patients with cancer and autoimmune diseases.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 29 contacts → | ||||
Exact match “Bioverativ, a Sanofi company, is dedicated to transforming the lives of people with hemophilia and other rare blood disorders through world-class research, development, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 26 contacts → | ||||
Exact match “Bonito is building the data foundation for programmable oligotherapeutic delivery to any cell or tissue type.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “biotherapeutics companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 40 biotherapeutics companies based in Waltham, United States
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Biotherapeutics companies based in Waltham, United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Waltham, so it is reported there. Company counts and contact totals on this page are exact for Waltham, over 40 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Waltham, United States whose business descriptions match “biotherapeutics companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 3,580 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Biotherapeutics companies by metro in the United States
- Biotherapeutics companies in San Diego187
- Biotherapeutics companies in Cambridge154
- Biotherapeutics companies in Boston111
- Biotherapeutics companies in New York84
- Biotherapeutics companies in San Francisco61
- Biotherapeutics companies in South San Francisco55
- Biotherapeutics companies in Seattle48
- Biotherapeutics companies in Houston47
- Biotherapeutics companies in Philadelphia37
- Biotherapeutics companies in Durham35
- Biotherapeutics companies in Chicago34
- Biotherapeutics companies in Rockville31
- Biotherapeutics companies in Los Angeles29
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “biotherapeutics companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many biotherapeutics companies are there based in Waltham, United States?
RevenueBase identified 40 company matches for biotherapeutics companies associated with Waltham, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Repligen Corporation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most biotherapeutics companies?
San Diego leads the United States with 187 company records, followed by Cambridge (154) and Boston (111). Waltham has 40.
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,580 professional contacts with verified work emails tracked across these 40 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 40 biotherapeutics companies based in Waltham, United States. Start with a free account, no credit card.
Download this list →Related lists
Biotherapeutics companies by geography
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
- Biotherapeutics companies based in Spain
- Biotherapeutics companies based in Brazil
- Biotherapeutics companies based in Italy
- Biotherapeutics companies based in Australia
- Biotherapeutics companies based in the Netherlands
- Biotherapeutics companies based in Israel
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 SmartSearch, 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
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
Company intelligence · public preview
Top 25 biotherapeutics companies based in Waltham, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 40 matching company records for biotherapeutics companies based in Waltham, United States, with 5,218 tracked contacts and 3,580 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 biotherapeutics companies based in Waltham, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Repligen Corporationrepligen.comHQ: Waltham, MA, United StatesReported employees: 1,001-5,000 | Waltham, MA, United States | 1,001-5,000 | Exact match | 1,254 contacts → |
“Repligen, a global, bioprocessing-focused life sciences company, provides innovative solutions for the advancement of biotherapeutic manufacturing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Apellis Pharmaceuticalsapellis.comHQ: Waltham, MA, United StatesReported employees: 501-1,000 | Waltham, MA, United States | 501-1,000 | Exact match | 823 contacts → |
“Apellis is now part of Biogen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Ardelyx, INCardelyx.comHQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 497 contacts → |
“Ardelyx is a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Elevatebioelevate.bioHQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 361 contacts → |
“ElevateBio is a technology-driven advanced therapy contract development and manufacturing organization (CDMO) powering the creation of life-transforming therapies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  SOBIsobi-northamerica.comHQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 326 contacts → |
“Sobi is an international specialty healthcare company dedicated to developing treatments and extensive patient support networks for people with rare and difficult to treat…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Viridian Therapeutics, INCviridiantherapeutics.comHQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 282 contacts → |
“Viridian is a biopharmaceutical company focused on engineering and developing potential best-in-class medicines for patients with serious and rare diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Tscan Therapeuticstscan.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 190 contacts → |
“TScan is dedicated to creating life-changing T cell therapies for patients by unleashing the untapped potential of the human immune system.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Zenas Biopharmazenasbio.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 159 contacts → |
“Zenas is a clinical-stage global biopharmaceutical company committed to becoming a leader in the development and commercialization of transformative therapies for patients living…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Visterra INCvisterrainc.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 146 contacts → |
“Visterra is a clinical stage biotechnology company committed to developing innovative antibody-based therapies for the treatment of patients with kidney diseases and other…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ventus Therapeuticsventustx.comHQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 101 contacts → |
“At Ventus, we are pioneering a unique approach to structure-based drug discovery to address biologically validated, but difficult-to-drug targets.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Spyre Therapeuticsspyre.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 96 contacts → |
“Spyre Therapeutics is a clinical-stage biotechnology company that aims to create next-generation inflammatory bowel disease (IBD) and other immune-mediated disease products by…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Dragonfly Therapeutics, INCdragonflytx.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 95 contacts → |
“Dragonfly Therapeutics is a clinical-stage biopharmaceutical company committed to discovering, developing and commercializing therapies that use its novel multispecific antibody…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Xilio Therapeutics, INCxiliotx.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 89 contacts → |
“Xilio is a Waltham, Massachusetts-based clinical-stage biopharmaceutical company focused on defeating cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Upstream BIOupstreambio.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 62 contacts → |
“We are advancing verekitug, a clinical-stage monoclonal antibody targeting an upstream driver of inflammatory response.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Mural Oncologymuraloncology.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 57 contacts → |
“We know that drug development is both an art and a science.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Paragon Therapeutics, INCparagontherapeutics.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 53 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Mustang BIOmustangbio.comHQ: Waltham, MA, United StatesReported employees: Not recorded | Waltham, MA, United States | Not recorded | Exact match | 52 contacts → |
“Mustang Bio, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Orionis Biosciencesorionisbio.comHQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 50 contacts → |
“Orionis Biosciences is a life sciences company pioneering technological innovation in genome-scale drug discovery and tunable molecular design of novel therapeutic drug modalities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Crescent Biopharmacrescentbiopharma.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 48 contacts → |
“Crescent Biopharma’s vision is to build a world leading oncology company bringing the next wave of therapies for cancer patients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Mythic Therapeutics, INCmythictx.comHQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 39 contacts → |
“Mythic Therapeutics is a product-platform company that is pioneering a powerful new approach to improving the effectiveness of antibody-drug conjugates (ADCs) and other…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Sironaxsironax.comHQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 36 contacts → |
“Sironax is a clinical-stage biotechnology company developing transformative therapies for neurodegenerative, inflammatory, immunologic, and metabolic diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Dynamicure Biotechnologydynamicure.comHQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 29 contacts → |
“Driven by science and passionate about advancing patient care, DynamiCure is translating breakthrough insights on immuno-normalization into a pipeline of innovative antibody…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Immunitas Therapeuticsimmunitastx.comHQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 29 contacts → |
“Immunitas is committed to discovering and developing novel, differentiated therapeutics for patients with cancer and autoimmune diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Bioverativ, A Sanofi Companybioverativ.comHQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 29 contacts → |
“Bioverativ, a Sanofi company, is dedicated to transforming the lives of people with hemophilia and other rare blood disorders through world-class research, development, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Bonito Biosciencesbonitobio.comHQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 26 contacts → |
“Bonito is building the data foundation for programmable oligotherapeutic delivery to any cell or tissue type.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 40 company matches
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Biotherapeutics companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
40 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Waltham, so it is reported there. Company counts and contact totals on this page are exact for Waltham, over 40 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Biotherapeutics companies by metro in the United States
- Biotherapeutics companies in San Diego187
- Biotherapeutics companies in Cambridge154
- Biotherapeutics companies in Boston111
- Biotherapeutics companies in New York84
- Biotherapeutics companies in San Francisco61
- Biotherapeutics companies in South San Francisco55
- Biotherapeutics companies in Seattle48
- Biotherapeutics companies in Houston47
- Biotherapeutics companies in Philadelphia37
- Biotherapeutics companies in Durham35
- Biotherapeutics companies in Chicago34
- Biotherapeutics companies in Rockville31
- Biotherapeutics companies in Los Angeles29
Questions about this company list
What does Exact match mean for biotherapeutics companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many biotherapeutics companies did RevenueBase find based in Waltham, United States?
The saved snapshot records 40 matching company records, 5,218 tracked contacts and 3,580 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Biotherapeutics companies by geography
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
- Biotherapeutics companies based in Spain
- Biotherapeutics companies based in Brazil
- Biotherapeutics companies based in Italy
- Biotherapeutics companies based in Australia
- Biotherapeutics companies based in the Netherlands
- Biotherapeutics companies based in Israel
Cite this list
RevenueBase Data Team. Top 25 biotherapeutics companies based in Waltham, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/biotherapeutics-companies/united-states/waltham.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
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- Lists A-Z
- New lists
- Biotherapeutics companies based in the United States
- Biotherapeutics companies based in the United Kingdom
- Biotherapeutics companies based in France
- Biotherapeutics companies based in Germany
- Biotherapeutics companies based in Canada
- Biotherapeutics companies based in Switzerland
Company intelligence · public preview
Top 25 biotherapeutics companies based in Waltham, United States
RevenueBase records 40 matching company records for biotherapeutics companies based in Waltham, United States, with 5,218 tracked contacts and 3,580 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 biotherapeutics companies based in Waltham, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Repligen Corporationrepligen.com HQ: Waltham, MA, United StatesReported employees: 1,001-5,000 | Waltham, MA, United States | 1,001-5,000 | Exact match | 1,254 contacts → |
“Repligen, a global, bioprocessing-focused life sciences company, provides innovative solutions for the advancement of biotherapeutic manufacturing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Apellis Pharmaceuticalsapellis.com HQ: Waltham, MA, United StatesReported employees: 501-1,000 | Waltham, MA, United States | 501-1,000 | Exact match | 823 contacts → |
“Apellis is now part of Biogen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ardelyx, INCardelyx.com HQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 497 contacts → |
“Ardelyx is a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Elevatebioelevate.bio HQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 361 contacts → |
“ElevateBio is a technology-driven advanced therapy contract development and manufacturing organization (CDMO) powering the creation of life-transforming therapies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | SOBIsobi-northamerica.com HQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 326 contacts → |
“Sobi is an international specialty healthcare company dedicated to developing treatments and extensive patient support networks for people with rare and difficult to treat…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Viridian Therapeutics, INCviridiantherapeutics.com HQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 282 contacts → |
“Viridian is a biopharmaceutical company focused on engineering and developing potential best-in-class medicines for patients with serious and rare diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Tscan Therapeuticstscan.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 190 contacts → |
“TScan is dedicated to creating life-changing T cell therapies for patients by unleashing the untapped potential of the human immune system.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Zenas Biopharmazenasbio.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 159 contacts → |
“Zenas is a clinical-stage global biopharmaceutical company committed to becoming a leader in the development and commercialization of transformative therapies for patients living…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Visterra INCvisterrainc.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 146 contacts → |
“Visterra is a clinical stage biotechnology company committed to developing innovative antibody-based therapies for the treatment of patients with kidney diseases and other…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ventus Therapeuticsventustx.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 101 contacts → |
“At Ventus, we are pioneering a unique approach to structure-based drug discovery to address biologically validated, but difficult-to-drug targets.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Spyre Therapeuticsspyre.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 96 contacts → |
“Spyre Therapeutics is a clinical-stage biotechnology company that aims to create next-generation inflammatory bowel disease (IBD) and other immune-mediated disease products by…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dragonfly Therapeutics, INCdragonflytx.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 95 contacts → |
“Dragonfly Therapeutics is a clinical-stage biopharmaceutical company committed to discovering, developing and commercializing therapies that use its novel multispecific antibody…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Xilio Therapeutics, INCxiliotx.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 89 contacts → |
“Xilio is a Waltham, Massachusetts-based clinical-stage biopharmaceutical company focused on defeating cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Upstream BIOupstreambio.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 62 contacts → |
“We are advancing verekitug, a clinical-stage monoclonal antibody targeting an upstream driver of inflammatory response.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Mural Oncologymuraloncology.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 57 contacts → |
“We know that drug development is both an art and a science.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Paragon Therapeutics, INCparagontherapeutics.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 53 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Mustang BIOmustangbio.com HQ: Waltham, MA, United StatesReported employees: Not recorded | Waltham, MA, United States | Not recorded | Exact match | 52 contacts → |
“Mustang Bio, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Orionis Biosciencesorionisbio.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 50 contacts → |
“Orionis Biosciences is a life sciences company pioneering technological innovation in genome-scale drug discovery and tunable molecular design of novel therapeutic drug modalities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Crescent Biopharmacrescentbiopharma.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 48 contacts → |
“Crescent Biopharma’s vision is to build a world leading oncology company bringing the next wave of therapies for cancer patients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Mythic Therapeutics, INCmythictx.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 39 contacts → |
“Mythic Therapeutics is a product-platform company that is pioneering a powerful new approach to improving the effectiveness of antibody-drug conjugates (ADCs) and other…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Sironaxsironax.com HQ: Waltham, MA, United StatesReported employees: 51-200 | Waltham, MA, United States | 51-200 | Exact match | 36 contacts → |
“Sironax is a clinical-stage biotechnology company developing transformative therapies for neurodegenerative, inflammatory, immunologic, and metabolic diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dynamicure Biotechnologydynamicure.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 29 contacts → |
“Driven by science and passionate about advancing patient care, DynamiCure is translating breakthrough insights on immuno-normalization into a pipeline of innovative antibody…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Immunitas Therapeuticsimmunitastx.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 29 contacts → |
“Immunitas is committed to discovering and developing novel, differentiated therapeutics for patients with cancer and autoimmune diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Bioverativ, A Sanofi Companybioverativ.com HQ: Waltham, MA, United StatesReported employees: 201-500 | Waltham, MA, United States | 201-500 | Exact match | 29 contacts → |
“Bioverativ, a Sanofi company, is dedicated to transforming the lives of people with hemophilia and other rare blood disorders through world-class research, development, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Bonito Biosciencesbonitobio.com HQ: Waltham, MA, United StatesReported employees: 11-50 | Waltham, MA, United States | 11-50 | Exact match | 26 contacts → |
“Bonito is building the data foundation for programmable oligotherapeutic delivery to any cell or tissue type.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Biotherapeutics companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
40 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Waltham, so it is reported there. Company counts and contact totals on this page are exact for Waltham, over 40 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Biotherapeutics companies by metro in the United States
- Biotherapeutics companies in San Diego187
- Biotherapeutics companies in Cambridge154
- Biotherapeutics companies in Boston111
- Biotherapeutics companies in New York84
- Biotherapeutics companies in San Francisco61
- Biotherapeutics companies in South San Francisco55
- Biotherapeutics companies in Seattle48
- Biotherapeutics companies in Houston47
- Biotherapeutics companies in Philadelphia37
- Biotherapeutics companies in Durham35
- Biotherapeutics companies in Chicago34
- Biotherapeutics companies in Rockville31
- Biotherapeutics companies in Los Angeles29
Questions about this company list
What does Exact match mean for biotherapeutics companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many biotherapeutics companies did RevenueBase find based in Waltham, United States?
The saved snapshot records 40 matching company records, 5,218 tracked contacts and 3,580 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 biotherapeutics companies based in Waltham, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/biotherapeutics-companies/united-states/waltham.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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