Altitude Life Science Ventures

Altitude Life Science Ventures is a private equity firm based in Kirkland, Washington, founded in 2005. The firm specializes in early-stage investments in the life sciences sector, with a particular focus on biotechnology, medical devices, diagnostics, oncology, and digital health. Altitude aims to identify high-quality entrepreneurs and companies that are pursuing substantial market opportunities and possess unique technologies that offer a competitive advantage. The firm emphasizes balancing risk while maximizing potential synergies and returns within its portfolio. It seeks to invest in companies that have strong management teams, a solid investment syndicate, and a clear path to liquidity, ensuring that its investments align with evolving market conditions.

James MacDonald

Venture Partner

Dave Maki

Managing Partner

Kristen Wong

Venture Partner

37 past transactions

Generate:Biomedicines

Series B in 2021
Generate Biomedicines, Inc. specializes in developing a generative biology platform aimed at inventing novel therapeutic proteins, including antibodies, peptides, enzymes, and other related compounds. Utilizing advanced machine learning techniques, the platform analyzes the genetic code that determines protein function, allowing for the creation of new protein sequences optimized for therapeutic applications. This innovative approach enables the company to generate proteins that interact specifically and effectively with targeted therapeutic needs, facilitating the development of new drugs across various protein modalities. Founded in 2018 and located in Cambridge, Massachusetts, Generate Biomedicines was previously known as Generate Biologics, Inc. until its name change in March 2020.

Mozart Therapeutics

Series A in 2021
Developer of disease-modifying therapies designed to focus on developing novel immune engagers. The company offers CD8 T-cell immune modulators for the treatment of autoimmune diseases as well as it specifically targets a subset of t-lymphocytes to delay the onset and ameliorate targeted autoimmune diseases, enabling doctors to administer state-of-the-art drugs for treating autoimmune disorders in patients.
Effector Therapeutics is a biotechnology company based in San Diego, California, that specializes in the development of small molecule drugs aimed at treating cancer and other serious diseases. Founded in 2012, the company focuses on creating selective translation regulators that target the regulation of protein synthesis, a critical process in tumor growth and survival. By selectively blocking dysregulated translation, Effector Therapeutics aims to inhibit cancer cell proliferation while providing a potent and targeted therapeutic approach. This innovative strategy positions the company to potentially deliver new and effective treatments to patients facing challenging health conditions.

Ring Therapeutics

Series B in 2021
Ring Therapeutics, Inc. is a biotechnology company that specializes in developing gene therapies through its innovative viral vector platform, Anellovector. This platform leverages the human commensal virome to create redosable and targetable DNA therapies, addressing key limitations of existing gene and DNA treatments, such as restricted access to diverse tissues and challenges with tolerability and genomic integration. Founded in 2017 and based in Cambridge, Massachusetts, Ring Therapeutics aims to expand the scope of gene therapy beyond traditional gene replacement, enabling a broader range of applications across various medical fields, including genetic disorders, ophthalmology, oncology, and metabolic diseases. By focusing on cellular and tissue specificity, the company aspires to unlock new therapeutic possibilities for previously inaccessible conditions.

Tessera Therapeutics

Series B in 2021
Tessera Therapeutics is an early-stage life sciences company focused on pioneering Gene Writing technology, which allows for the permanent modification of the human genome. This innovative approach enables scientists and clinicians to introduce therapeutic messages into the genome, offering a potential cure for diseases at their source. By building on recent advancements in gene therapy and gene editing, Tessera Therapeutics aims to address significant limitations in these areas, enhancing their applicability and effectiveness. Founded by Flagship Pioneering, the company is positioned to transform genetic medicine and improve patient care through its groundbreaking technology.

Sana Biotechnology

Series A in 2020
Sana Biotechnology is a biotechnology company focused on developing engineered cells as therapies for various diseases. Incorporated in 2018 and based in Seattle, Washington, with additional offices in South San Francisco and Cambridge, the company leverages recent scientific advancements to reprogram cells or replace damaged cells and tissues. Sana's mission is to create a new class of medicines that address unmet treatment needs across a wide range of therapeutic areas, including oncology, diabetes, autoimmune disorders, and central nervous system conditions. Its pipeline includes several product candidates, such as SC291, SC262, SC255, and UP421, aimed at transforming the approach to disease treatment.

CERo Therapeutics

Series A in 2020
CERo Therapeutics, Inc. is a biotechnology company based in San Francisco, California, focused on advancing cellular immunotherapy. Established in 2016, the company has developed a hybrid platform that merges innate and adaptive immune responses to create engineered T-cell therapeutics for cancer treatment. This proprietary approach aims to harness the body's complete immune capabilities to enhance the effectiveness of cancer therapies. By integrating desirable features from both immune systems, CERo Therapeutics seeks to optimize treatment outcomes for patients with cancer.

Omniome

Series C in 2020
Omniome, Inc. is a biotechnology company based in San Diego, California, established in 2013. It specializes in developing a proprietary DNA sequencing platform that aims to deliver high accuracy in sequencing results. The company employs its Sequencing By Binding technology, which enhances nucleotide and DNA matching by utilizing the natural matching capabilities of polymerase. This innovative approach not only provides precise and rapid results but also offers a cost-effective solution, which has the potential to significantly advance cancer diagnostics. Omniome is backed by prominent life sciences venture investors and is focused on becoming a trusted leader in the field of clinical sequencing.

Nuvation Bio

Series A in 2019
Nuvation Bio Inc., a biopharmaceutical company, focuses on the development of therapies for oncology. Its portfolio includes various oncology programs with multiple drug development candidates. Nuvation Bio Inc.was formerly known as RePharmation Inc. and changed its name to Nuvation Bio Inc. in April 2019. The company was founded in 2018 and is based in New York, New York with an additional office in San Francisco, California.

Encoded Therapeutics

Series C in 2019
Encoded Therapeutics, Inc. is a biotechnology company focused on developing precision gene therapies for severe genetic disorders. The company's innovative platform identifies sequences within the human genome that regulate gene expression through advanced screening and computational methods. Its therapy pipeline targets a variety of genetic and acquired disorders across multiple disease pathways, including neurocircuitry, liver and metabolic disorders, neurodegeneration, and cardiovascular diseases. Founded in 2014 and headquartered in South San Francisco, California, Encoded Therapeutics aims to enhance treatment options available to medical practitioners, ultimately improving patient outcomes and quality of life.

Blackthorn Therapeutics

Series B in 2019
BlackThorn Therapeutics operator of a clinical-stage biopharmaceutical company intended to develop precision medicine for disorders of the central nervous system (CNS) based on advances in computational and clinical neuroscience. The company leverages a deep understanding of brain and behavior relationships that seeks to overcome historic challenges in drug discovery and development by targeting dysfunctional brain circuits. Its proprietary computational platform, the company seeks to identify novel targets, small molecule drug candidates and biologically-based patient subgroups most likely to respond to treatment.

Vividion Therapeutics

Series B in 2019
Vividion Therapeutics, Inc. is a biotechnology company based in San Diego, California, focused on developing therapeutics to address significant unmet medical needs. The company utilizes a novel platform for proteome-wide small molecule drug discovery, which combines proteomic techniques and synthetic chemistry to enhance drug selectivity and broaden the range of druggable proteins. Originating from research at The Scripps Research Institute, Vividion's technology enables the creation of detailed drug interaction maps, facilitating simultaneous target engagement and comprehensive selectivity profiling. By advancing its innovative synthetic and proteomic chemistry approaches, Vividion aims to deliver transformative treatments for patients with serious illnesses.

Beam Therapeutics

Series B in 2019
Beam Therapeutics Inc. is a biotechnology company based in Cambridge, Massachusetts, focused on developing precision genetic medicines using its innovative base editing technology. This technology allows for targeted alterations of single bases in the genome without creating double-stranded breaks in DNA, representing a potential advancement in genetic therapies. The company's pipeline includes programs aimed at treating serious diseases such as sickle cell disease, beta-thalassemia, pediatric T-cell acute lymphoblastic leukemia, and pediatric acute myeloid leukemia, as well as conditions like alpha-1 antitrypsin deficiency and certain central nervous system disorders. Beam Therapeutics is committed to providing life-long cures through its various approaches, which include gene correction, gene modification, gene activation, gene silencing, and multiplex editing. Founded in 2017, Beam continues to build collaborations to enhance its research and development efforts.

Millendo Therapeutics

Venture Round in 2018
Atterocor, Inc. focuses on research and development of therapeutics for adrenal disease. Atterocor, Inc. was incorporated in 2012 and is based in Ann Arbor, Michigan.

Omniome

Series B in 2018
Omniome, Inc. is a biotechnology company based in San Diego, California, established in 2013. It specializes in developing a proprietary DNA sequencing platform that aims to deliver high accuracy in sequencing results. The company employs its Sequencing By Binding technology, which enhances nucleotide and DNA matching by utilizing the natural matching capabilities of polymerase. This innovative approach not only provides precise and rapid results but also offers a cost-effective solution, which has the potential to significantly advance cancer diagnostics. Omniome is backed by prominent life sciences venture investors and is focused on becoming a trusted leader in the field of clinical sequencing.

Effector Therapeutics

Series C in 2017
Effector Therapeutics is a biotechnology company based in San Diego, California, that specializes in the development of small molecule drugs aimed at treating cancer and other serious diseases. Founded in 2012, the company focuses on creating selective translation regulators that target the regulation of protein synthesis, a critical process in tumor growth and survival. By selectively blocking dysregulated translation, Effector Therapeutics aims to inhibit cancer cell proliferation while providing a potent and targeted therapeutic approach. This innovative strategy positions the company to potentially deliver new and effective treatments to patients facing challenging health conditions.

Sienna Biopharmaceuticals

Series B in 2017
Sienna Biopharmaceuticals, Inc. is a clinical-stage biopharmaceutical company headquartered in Westlake Village, California. Founded in 2010, the company specializes in the development of innovative therapies in immunology and inflammation, particularly targeting dermatological conditions. Its lead candidates include SNA-120, a first-in-class inhibitor currently undergoing Phase IIb trials for psoriasis and associated itching, and SNA-125, a dual Janus kinase 3 inhibitor in Phase I/II trials for atopic dermatitis, psoriasis, and pruritus. Additionally, Sienna is advancing SNA-001, a topical silver particle suspension in pivotal clinical trials aimed at treating acne and reducing light-pigmented hair. The company previously operated as Sienna Labs, Inc. and underwent significant financial restructuring, including a Chapter 11 bankruptcy filing in 2019, which transitioned to Chapter 7. Sienna Biopharmaceuticals aims to enhance patient outcomes and the practice of medicine through its targeted topical therapies.

Vir

Venture Round in 2017
Vir Biotechnology, Inc. is a clinical-stage immunology company based in San Francisco, California, focused on developing therapeutic products to treat and prevent serious infectious diseases. The company employs a combination of innovative technologies and scientific expertise to enhance the immune response against pathogens. Its pipeline includes several product candidates, such as VIR-2218 and VIR-3434 for hepatitis B, VIR-2482 for influenza A, VIR-1111 for HIV, and VIR-2020 for tuberculosis. Vir's approach integrates various technology platforms, including antibodies, T cells, and small interfering RNA, to manipulate pathogen-host interactions. The company collaborates with multiple organizations, including the Bill & Melinda Gates Foundation, the National Institutes of Health, and several pharmaceutical companies, to advance its research and development efforts. Additionally, Vir has established agreements for the manufacturing of SARS-CoV-2 antibodies, positioning itself to address emerging infectious diseases. Founded in 2016, Vir Biotechnology aims to make significant advancements in the fight against viral diseases.

Blackthorn Therapeutics

Series A in 2016
BlackThorn Therapeutics operator of a clinical-stage biopharmaceutical company intended to develop precision medicine for disorders of the central nervous system (CNS) based on advances in computational and clinical neuroscience. The company leverages a deep understanding of brain and behavior relationships that seeks to overcome historic challenges in drug discovery and development by targeting dysfunctional brain circuits. Its proprietary computational platform, the company seeks to identify novel targets, small molecule drug candidates and biologically-based patient subgroups most likely to respond to treatment.

Sienna Biopharmaceuticals

Series A in 2016
Sienna Biopharmaceuticals, Inc. is a clinical-stage biopharmaceutical company headquartered in Westlake Village, California. Founded in 2010, the company specializes in the development of innovative therapies in immunology and inflammation, particularly targeting dermatological conditions. Its lead candidates include SNA-120, a first-in-class inhibitor currently undergoing Phase IIb trials for psoriasis and associated itching, and SNA-125, a dual Janus kinase 3 inhibitor in Phase I/II trials for atopic dermatitis, psoriasis, and pruritus. Additionally, Sienna is advancing SNA-001, a topical silver particle suspension in pivotal clinical trials aimed at treating acne and reducing light-pigmented hair. The company previously operated as Sienna Labs, Inc. and underwent significant financial restructuring, including a Chapter 11 bankruptcy filing in 2019, which transitioned to Chapter 7. Sienna Biopharmaceuticals aims to enhance patient outcomes and the practice of medicine through its targeted topical therapies.

Millendo Therapeutics

Series B in 2016
Atterocor, Inc. focuses on research and development of therapeutics for adrenal disease. Atterocor, Inc. was incorporated in 2012 and is based in Ann Arbor, Michigan.

Effector Therapeutics

Series B in 2015
Effector Therapeutics is a biotechnology company based in San Diego, California, that specializes in the development of small molecule drugs aimed at treating cancer and other serious diseases. Founded in 2012, the company focuses on creating selective translation regulators that target the regulation of protein synthesis, a critical process in tumor growth and survival. By selectively blocking dysregulated translation, Effector Therapeutics aims to inhibit cancer cell proliferation while providing a potent and targeted therapeutic approach. This innovative strategy positions the company to potentially deliver new and effective treatments to patients facing challenging health conditions.

Pulmatrix

Post in 2015
Pulmatrix, Inc., a clinical stage biopharmaceutical company, develops inhaled therapies for the treatment, prevention, and transmission control of infectious and progressive respiratory diseases. It offers inhaled cationic airway lining modulator drugs, which stimulate host defense mechanisms within the airway to treat and prevent influenza, rhinovirus, and chronic pulmonary diseases. The company was founded in 2003 and is based in Lexington, Massachusetts.

Receptos

Series B in 2013
Receptos is a privately-held drug discovery and development company which utilizes pioneering G protein-coupled receptor (GPCR) technology to facilitate information-driven drug design for developing best- and first-in-class drugs.

Siluria Technologies

Series C in 2012
Siluria Technologies is a materials innovation company solving global challenges for partners in the natural gas, chemicals and fuel industries. Integrating nanotechnology, biotechnology and chemical engineering, Siluria has developed a solution to the grand challenge of efficient manufacturing: the ability to produce chemicals and fuels from a cheaper, more abundant resource than oil. The company's economically superior, energy-efficient platform converts natural gas into the same materials manufactured today using current industry infrastructure. Siluria's world-class R&D and engineering teams are rapidly commercializing the company's technology to pilot-scale production in close dialogue with the world's largest chemical and fuel companies.Siluria's backers include Alloy Ventures, ARCH Venture Partners, Kleiner Perkins Caufield & Byers, Altitude Life Science Ventures, Lux Capital, and Presidio Ventures.

Siluria Technologies

Series B in 2011
Siluria Technologies is a materials innovation company solving global challenges for partners in the natural gas, chemicals and fuel industries. Integrating nanotechnology, biotechnology and chemical engineering, Siluria has developed a solution to the grand challenge of efficient manufacturing: the ability to produce chemicals and fuels from a cheaper, more abundant resource than oil. The company's economically superior, energy-efficient platform converts natural gas into the same materials manufactured today using current industry infrastructure. Siluria's world-class R&D and engineering teams are rapidly commercializing the company's technology to pilot-scale production in close dialogue with the world's largest chemical and fuel companies.Siluria's backers include Alloy Ventures, ARCH Venture Partners, Kleiner Perkins Caufield & Byers, Altitude Life Science Ventures, Lux Capital, and Presidio Ventures.
KYTHERA Biopharmaceuticals, Inc., formerly known as AESTHERx, Inc., was founded in August 2005 and is a privately held biopharmaceutical company located north of Los Angeles in southern California. KYTHERA is focused on science and innovation in aesthetic medicine. This market is expanding rapidly driven by an aging population, increasing discretionary income, and an evolution of patient preference toward restorative and preventative care. The company uses the tools of biotechnology to develop prescription therapeutics for this emerging market.
Constellation Pharmaceuticals, Inc. is a clinical-stage biopharmaceutical company based in Cambridge, Massachusetts, focused on developing therapeutics aimed at addressing significant unmet medical needs in cancer treatment, particularly those related to abnormal gene expression and drug resistance. The company's lead product candidates include CPI-0610, currently undergoing Phase II clinical trials for myelofibrosis in combination with ruxolitinib, and CPI-1205, which is in Phase Ib/II trials for metastatic castration-resistant prostate cancer alongside androgen receptor signaling inhibitors. Additionally, Constellation is developing CPI-0209, which is in the dose escalation phase of a Phase I/II clinical trial for solid tumors. Founded in 2008, the company was previously known as Epigenetix, Inc. and has established itself as a pioneer in the emerging field of epigenetics, which focuses on selective regulators of epigenetic function crucial for gene expression control.

Siluria Technologies

Series A in 2010
Siluria Technologies is a materials innovation company solving global challenges for partners in the natural gas, chemicals and fuel industries. Integrating nanotechnology, biotechnology and chemical engineering, Siluria has developed a solution to the grand challenge of efficient manufacturing: the ability to produce chemicals and fuels from a cheaper, more abundant resource than oil. The company's economically superior, energy-efficient platform converts natural gas into the same materials manufactured today using current industry infrastructure. Siluria's world-class R&D and engineering teams are rapidly commercializing the company's technology to pilot-scale production in close dialogue with the world's largest chemical and fuel companies.Siluria's backers include Alloy Ventures, ARCH Venture Partners, Kleiner Perkins Caufield & Byers, Altitude Life Science Ventures, Lux Capital, and Presidio Ventures.
Constellation Pharmaceuticals, Inc. is a clinical-stage biopharmaceutical company based in Cambridge, Massachusetts, focused on developing therapeutics aimed at addressing significant unmet medical needs in cancer treatment, particularly those related to abnormal gene expression and drug resistance. The company's lead product candidates include CPI-0610, currently undergoing Phase II clinical trials for myelofibrosis in combination with ruxolitinib, and CPI-1205, which is in Phase Ib/II trials for metastatic castration-resistant prostate cancer alongside androgen receptor signaling inhibitors. Additionally, Constellation is developing CPI-0209, which is in the dose escalation phase of a Phase I/II clinical trial for solid tumors. Founded in 2008, the company was previously known as Epigenetix, Inc. and has established itself as a pioneer in the emerging field of epigenetics, which focuses on selective regulators of epigenetic function crucial for gene expression control.

Cambrios Technologies

Series D in 2009
Cambrios Technologies Corp. develops electronic materials for the display industry. The company provides wet-processable transparent conductive films. Its nanostructured materials can be deposited using existing production equipment to achieve enhanced performance of display devices and components. The company was founded in 2002 as Semzyme, Inc. and changed its name to Cambrios Technologies Corp. in August 2004. Cambrios Technologies Corp. is based in Sunnyvale, California.
Constellation Pharmaceuticals, Inc. is a clinical-stage biopharmaceutical company based in Cambridge, Massachusetts, focused on developing therapeutics aimed at addressing significant unmet medical needs in cancer treatment, particularly those related to abnormal gene expression and drug resistance. The company's lead product candidates include CPI-0610, currently undergoing Phase II clinical trials for myelofibrosis in combination with ruxolitinib, and CPI-1205, which is in Phase Ib/II trials for metastatic castration-resistant prostate cancer alongside androgen receptor signaling inhibitors. Additionally, Constellation is developing CPI-0209, which is in the dose escalation phase of a Phase I/II clinical trial for solid tumors. Founded in 2008, the company was previously known as Epigenetix, Inc. and has established itself as a pioneer in the emerging field of epigenetics, which focuses on selective regulators of epigenetic function crucial for gene expression control.

Limerick BioPharma

Series C in 2009
Limerick BioPharma is dedicated to developing compounds that, when used adjunctively with both marketed and investigational drugs, significantly improve the quality of patients' lives. Their compounds minimize toxic side effects at non-targeted vulnerable organs and tissue while maintaining or enhancing a drug's desired effects. In the monotherapy setting, they are developing novel compounds that target the treatment of metabolic diseases such as hypercholesteremia and hyperglycemia.

Limerick BioPharma

Venture Round in 2008
Limerick BioPharma is dedicated to developing compounds that, when used adjunctively with both marketed and investigational drugs, significantly improve the quality of patients' lives. Their compounds minimize toxic side effects at non-targeted vulnerable organs and tissue while maintaining or enhancing a drug's desired effects. In the monotherapy setting, they are developing novel compounds that target the treatment of metabolic diseases such as hypercholesteremia and hyperglycemia.
KYTHERA Biopharmaceuticals, Inc., formerly known as AESTHERx, Inc., was founded in August 2005 and is a privately held biopharmaceutical company located north of Los Angeles in southern California. KYTHERA is focused on science and innovation in aesthetic medicine. This market is expanding rapidly driven by an aging population, increasing discretionary income, and an evolution of patient preference toward restorative and preventative care. The company uses the tools of biotechnology to develop prescription therapeutics for this emerging market.

Arete Therapeutics

Series A in 2007
Arete Therapeutics Inc. is discovering and developing first-in-class small molecule compounds.
KYTHERA Biopharmaceuticals, Inc., formerly known as AESTHERx, Inc., was founded in August 2005 and is a privately held biopharmaceutical company located north of Los Angeles in southern California. KYTHERA is focused on science and innovation in aesthetic medicine. This market is expanding rapidly driven by an aging population, increasing discretionary income, and an evolution of patient preference toward restorative and preventative care. The company uses the tools of biotechnology to develop prescription therapeutics for this emerging market.
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