Top 41 Breast cancer treatment startups
Nov 17, 2025
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16
These startups develop new breast cancer treatments and diagnostics technologies, such as targeted therapy, immunotherapy, hormone therapy, cryotherapy, proton therapy.
1
Country: UK | Funding: $414M
Artios develops a pipeline of DNA damage response (DDR)-targeting cancer prospects, that is based on the idea that tumor cells use DDR pathways to manage DNA damage. By inhibiting key components of the DDR, a DDR inhibitor can kill cancerous cells while skipping healthy ones. Company's lead candidate, alnodesertib (DNA polymerase theta inhibitor) is intenede to treat pancreatic cancer, breast and third-line colorectal cancer. It has demonstrated durable responses in patients with eight different solid tumor types whose tumors had ATM deficiency. Artios’ pipeline also features a DDR inhibitor antibody-drug conjugate (DDR-ADC) discovery program
Artios develops a pipeline of DNA damage response (DDR)-targeting cancer prospects, that is based on the idea that tumor cells use DDR pathways to manage DNA damage. By inhibiting key components of the DDR, a DDR inhibitor can kill cancerous cells while skipping healthy ones. Company's lead candidate, alnodesertib (DNA polymerase theta inhibitor) is intenede to treat pancreatic cancer, breast and third-line colorectal cancer. It has demonstrated durable responses in patients with eight different solid tumor types whose tumors had ATM deficiency. Artios’ pipeline also features a DDR inhibitor antibody-drug conjugate (DDR-ADC) discovery program
2
Country: Germany | Funding: $1.9B
We are developing the next generation of personalized immunotherapies to help revolutionize the treatment of people with cancer and other debilitating diseases.
We are developing the next generation of personalized immunotherapies to help revolutionize the treatment of people with cancer and other debilitating diseases.
3
Country: USA | Funding: $256M
Acepodia is a therapeutics company that employs flexible therapeutic design to treat cancer.
Acepodia is a therapeutics company that employs flexible therapeutic design to treat cancer.
4
Country: USA | Funding: $220M
Paige.AI, stands for Pathology AI Guidance Engine, is a new startup that uses artificial intelligence to fight cancer. The company focus on breast, prostrate and other major cancers, and expects to partner with other medical centers beyond MSK, as well as commercial labs and pharmaceutical companies as it grows and develops its applications.
Paige.AI, stands for Pathology AI Guidance Engine, is a new startup that uses artificial intelligence to fight cancer. The company focus on breast, prostrate and other major cancers, and expects to partner with other medical centers beyond MSK, as well as commercial labs and pharmaceutical companies as it grows and develops its applications.
5
Country: USA | Funding: $208.3M
Halda is developing RIPTAC therapeutics - a new class of precision medicines to defeat cancer.
Halda is developing RIPTAC therapeutics - a new class of precision medicines to defeat cancer.
6
Country: USA | Funding: $187M
Callio Therapeutics develops next-generation, multi-payload antibody-drug conjugates (ADCs).
Callio Therapeutics develops next-generation, multi-payload antibody-drug conjugates (ADCs).
7
Country: Canada | Funding: $120.1M
Oncolytics Biotech is developing REOLYSIN®, a safe and well-tolerated intravenously delivered immuno-oncolytic virus (IOV) that targets cancer through a unique mechanism of action with two components, selective tumor lysis and activation of the innate and adaptive immune systems, creating an inflamed phenotype to treat a variety of solid tumors and hematological malignancies.
Oncolytics Biotech is developing REOLYSIN®, a safe and well-tolerated intravenously delivered immuno-oncolytic virus (IOV) that targets cancer through a unique mechanism of action with two components, selective tumor lysis and activation of the innate and adaptive immune systems, creating an inflamed phenotype to treat a variety of solid tumors and hematological malignancies.
8
Country: USA | Funding: $112.3M
iMDx is focused on cancers with large patient populations and significant unmet need. The company is developing three genetic tests – blood tests for breast cancer and lung cancer, and a urine-based test for bladder cancer.
iMDx is focused on cancers with large patient populations and significant unmet need. The company is developing three genetic tests – blood tests for breast cancer and lung cancer, and a urine-based test for bladder cancer.
9
Country: USA | Funding: $106M
Totus Medicines is a provider of chemical biology technologies by creating life-changing covalent drugs.
Totus Medicines is a provider of chemical biology technologies by creating life-changing covalent drugs.
10
Country: USA | Funding: $95M
Osiris Therapeutics is a stem cell company, which focuses on developing and marketing products to treat medical conditions in the inflammatory, cardiovascular, orthopedic and wound healing markets. The company operates its business through two segments: Therapeutics and Biosurgery segment. The Therapeutics segment focuses on developing biologic stem cell drug candidates from readily available and non-controversial sources. One of its products, Stromagen was used to treat breast cancer in clinical trials.
Osiris Therapeutics is a stem cell company, which focuses on developing and marketing products to treat medical conditions in the inflammatory, cardiovascular, orthopedic and wound healing markets. The company operates its business through two segments: Therapeutics and Biosurgery segment. The Therapeutics segment focuses on developing biologic stem cell drug candidates from readily available and non-controversial sources. One of its products, Stromagen was used to treat breast cancer in clinical trials.
11
Country: Israel | Funding: $72M
Ayala Pharmaceuticals develops a personalized treatment for cancer.
Ayala Pharmaceuticals develops a personalized treatment for cancer.
12
Country: Switzerland | Funding: $65.7M
NBE-Therapeutics develops next-generation ADCs improving treatment options for cancer patients. The company is financially backed by the Boehringer Ingelheim Venture Fund and additional private investors.
NBE-Therapeutics develops next-generation ADCs improving treatment options for cancer patients. The company is financially backed by the Boehringer Ingelheim Venture Fund and additional private investors.
13
Country: USA | Funding: $65M
Actuate Therapeutics is a biopharmaceutical company focused on the development of compounds for use in the treatment of cancer, and inflammatory diseases leading to fibrosis and neurodegeneration. Our work has led to some fascinating results around anti-tumor activity in the brain, pancreas, lungs, and breasts.
Actuate Therapeutics is a biopharmaceutical company focused on the development of compounds for use in the treatment of cancer, and inflammatory diseases leading to fibrosis and neurodegeneration. Our work has led to some fascinating results around anti-tumor activity in the brain, pancreas, lungs, and breasts.
14
Country: UK | Funding: $39.8M
Around the world the incidence of cancer is growing, and with it the demand for better, faster and less expensive solutions for diagnosis and treatment. With the aim of bringing cancer care to everyone, everywhere, Endomag is developing a clinical platform that uses safe magnetic fields to power diagnostic and therapeutic devices, avoiding the safety, workflow and availability concerns of ionizing radiation.
Around the world the incidence of cancer is growing, and with it the demand for better, faster and less expensive solutions for diagnosis and treatment. With the aim of bringing cancer care to everyone, everywhere, Endomag is developing a clinical platform that uses safe magnetic fields to power diagnostic and therapeutic devices, avoiding the safety, workflow and availability concerns of ionizing radiation.
15
Country: USA | Funding: $34.3M
Anixa is a publicly-traded biotechnology company focused on harnessing the body's immune system in the fight against cancer. Anixa's therapeutic portfolio includes a cancer vaccine technology focused on the immunization against α-Lactalbumin to prevent triple negative breast cancer (TNBC), as well as a cancer immunotherapy program which uses a novel type of CAR-T, known as chimeric endocrine receptor T-cell (CER-T) technology.
Anixa is a publicly-traded biotechnology company focused on harnessing the body's immune system in the fight against cancer. Anixa's therapeutic portfolio includes a cancer vaccine technology focused on the immunization against α-Lactalbumin to prevent triple negative breast cancer (TNBC), as well as a cancer immunotherapy program which uses a novel type of CAR-T, known as chimeric endocrine receptor T-cell (CER-T) technology.
16
Country: UK | Funding: $22m
Kheiron Medical Technologies aims to help radiologists detect breast cancer earlier by using deep learning
Kheiron Medical Technologies aims to help radiologists detect breast cancer earlier by using deep learning
17
Country: South Korea | Funding: ₩27B
Aston Sci is a clinical-stage biopharmaceutical company that develops medicines in oncology, immunology, and geriatrics. It's cancer vaccine is being evaluated for breast and gastric cancer
Aston Sci is a clinical-stage biopharmaceutical company that develops medicines in oncology, immunology, and geriatrics. It's cancer vaccine is being evaluated for breast and gastric cancer
18
Country: USA | Funding: $18.8M
4D Path uses H&E biopsy images to unveil hidden data instantly providing biomarker profiling and stratification. Although their initial focus is on breast cancer, the company is actively working on developing products for ovarian cancer, cervical cytology, skin cancer, and, in general, around immunotherapy in various cancers.
4D Path uses H&E biopsy images to unveil hidden data instantly providing biomarker profiling and stratification. Although their initial focus is on breast cancer, the company is actively working on developing products for ovarian cancer, cervical cytology, skin cancer, and, in general, around immunotherapy in various cancers.
19
Country: Australia | Funding: $17.1M
OncoRes Medical develops an imaging technology to provide intraoperative information available to breast cancer surgeons.
OncoRes Medical develops an imaging technology to provide intraoperative information available to breast cancer surgeons.
20
Country: Russia
BioCAD is a full-cycle drug development and manufacturing company with a world-class research and development center.
BioCAD is a full-cycle drug development and manufacturing company with a world-class research and development center.
