Ampersand
Private equityBoston · Growth · 34 people tracked
Investment thesis
Ampersand focuses on minority and majority equity investments in growth-oriented life sciences and healthcare companies, targeting sub-segments where the firm holds deep industry experience. It partners closely with founders and management teams to drive both organic and inorganic growth, adding value through board-level engagement while management retains day-to-day control. Capital is used for business expansion and growth equity, recapitalizations and shareholder liquidity, management buyouts, and corporate divestitures. Founded in 1988, the firm has a portfolio of more than 80 companies and roughly $3 billion in assets under management, and is currently investing out of its eleventh fund.
Source: firm website, verified Aug 25, 2026.
Team · 34 people
from the firm's websiteWhat they invest in
from 46 of 71 portfolio companiesBiotech ×33Healthtech ×28Advanced Manufacturing ×17Medical Devices ×16Digital Health ×11Deep Tech ×7AI & Machine Learning ×4Hardware ×4
HQs:United States×14Belgium×1United Kingdom×1New Zealand×1
Investments · 71 tracked
founders shown can be your intro pathBy year:2025 · 12023 · 12022 · 12021 · 14 dated
ANI Pharmaceuticals is a pharmaceutical company focused on rare disease treatments, developing and marketing therapies such as an intravitreal implant for chronic non-infectious uveitis.
BiotechHealthtech
Co-investorsThe Argentum Group
PerkinElmer is a scientific instrument and technology company that provides analytical tools and services for research, diagnostics, and life sciences applications.
BiotechDeep TechEnterprise SoftwareHealthtechMedical DevicesWaltham, US
James M. Mock(Executive Officer)Andrew Okun(Executive Officer)Joel S. Goldberg(Executive Officer)Prahlad Singh(Executive Officer, Director)Tajinder Vohra(Executive Officer)
BoardSylvie Gregoire(Director)
Co-investorsARCH Venture PartnersPartners for GrowthPartners for Growth (PFG)
Laboratory instrumentation CDMO, originally a supplier of mass spectrometry components, scaled globally via acquisitions and later sold to IMI.
BiotechIndianapolis, US
Ronald E. Shoup(Executive Officer, Director)Michael Evans(Executive Officer, Director)Teresa A. Pascarelli(Executive Officer, Director)Terry J. Spartz(Executive Officer, Director)Michael A. Evans(Executive Officer, Director)
BoardR. J. McConnell(Director)
Co-investorsElevate Ventures
AnaBios generates predictive human data for pharmaceutical drug development, using authentic human cells and tissues from healthy and diseased donors to assess drug efficacy and toxicity before clinical trials.
BiotechDeep TechHealthtechSan Diego
Andre Ghetti(Executive Officer, Director)Richard F. Erdman(Director)Paul Miller(Executive Officer)Jack Reynolds(Executive Officer, Director)Peter Crowley(Director)George Goldsmith(Director)
Co-investorsKeiretsu Forum
Avid Bioservices is a U.S.-based contract development and manufacturing organization (CDMO) specializing in mammalian cell culture process development, analytical development, and CGMP biologics manufacturing.
Advanced ManufacturingBiotechHealthtech
Beacon Intelligence provides subscription databases covering drug development landscapes across therapeutic areas such as oncology, neurology, cell and gene therapy, RNA, and autoimmune diseases.
BiotechData & InfrastructureHealthtech
Bioventus develops orthobiologics and pain treatment products for orthopedic care, offering therapies such as the StimRouter neurostimulation device for chronic peripheral nerve pain.
BiotechHealthtechMedical Devices
Co-investorsAlta PartnersEssex Woodlands Healthcare Partners
Cambrex is a contract development and manufacturing organization (CDMO) serving biotech and pharmaceutical companies with drug substance and drug product development, API manufacturing, analytical testing, and specialty services such as peptides, oligonucleotides, highly potent APIs, and controlled substances.
Advanced ManufacturingBiotechHealthtech
Canopy Biosciences (Bruker Spatial Biology) develops spatial biology instruments and assays for analyzing gene expression, RNA, and proteins in tissue samples.
BiotechHealthtechMedical DevicesSaint Louis, US
EDWARD WEINSTEIN(President, Chief Executive Officer and Manager)CRYSTAL WINKELER(Chief Operating Officer)CHARLES BOLTEN(Director)DAVID KINGSLEY(Director)
BoardDAVID SMOLLER(Director)in
Co-investorsBioGenerator Ventures
Confluent provides a cloud-native platform for real-time data streaming and movement, enabling organizations to connect applications and respond to business events as they occur.
AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareMountain View, US
Neha Narkhede(Co-founder; former Chief Technology Officer and board member)inJay Kreps(Co-founder and Chief Executive Officer)inJun Rao(Co-founder)in
Co-investorsAlkeon InnovationAltimeter CapitalAxevil CapitalBattery VenturesCoatue ManagementCusp Capital+14 more
Confluent Medical is a contract design, development, and manufacturing partner for the medical device industry, specializing in interventional catheter-based devices and implants.
Advanced ManufacturingMedical DevicesNew Materials
Curia is a contract development and manufacturing organization (CDMO) that guides biopharma clients through drug discovery, development, and manufacturing, with services spanning small molecule, generic APIs, sterile drug product, and biologics.
Advanced ManufacturingBiotechHealthtech
DYNEX Technologies manufactures fully automated ELISA laboratory systems and diagnostic instruments for clinical and research laboratories.
Medical Devices
Co-investorsTelegraph Hill Partners
Eurofins Viracor is a specialty clinical diagnostic laboratory offering nearly 3,000 assays in infectious disease, transplant, allergy, invasive fungal, and immunology testing for critically ill and immunocompromised patients.
BiotechDigital HealthHealthtech
Flagship Biosciences is a CLIA-certified, CAP-accredited spatial biology and biomarker services company that combines AI-powered tissue analysis with scientific consultation.
AI & Machine LearningBiotechDigital HealthHealthtechWestminster, US
Dean Northey(Executive Officer)G. David Young(Executive Officer, Director, Promoter)Trevor Johnson(Executive Officer, Director, Promoter)Nancy A. Gillett(Director)Gary M. Clark(Director)Gregory K. Tucker(Director)
Freudenberg Medical is a contract development and manufacturing organization (CDMO) for medical devices and pharmaceutical products, supporting clients from concept and design through development and series manufacturing.
Advanced ManufacturingMedical Devices
Gannet BioChem is a contract development and manufacturing organization (CDMO) specializing in polymer science, offering activated polymers, PEG chemistry, and bioconjugation services for complex therapeutics.
BiotechNew Materials
GENEWIZ, part of Azenta Life Sciences, provides genomics laboratory services including next-generation and Sanger sequencing, gene synthesis, oligo synthesis, plasmid DNA preparation, proteomics, and GLP-compliant and clinical services.
BiotechDeep TechHealthtech
Gyros Protein Technologies provides automated platforms for biotherapeutic drug development, including the Gyrolab immunoassay systems and PurePep peptide synthesis solutions.
BiotechHardwareHealthtech
Co-investorsA-Rod CorpAllCloudAltitude AcceleratorBand of AngelsBlumberg CapitalClimate Impact Capital+7 more
ICON is a clinical research organization that provides drug and medical device development services, including full-service outsourcing, early clinical and bioanalytical solutions, specialty laboratories, cardiac safety monitoring, market access consulting, and AI-enabled clinical trial platforms.
AI & Machine LearningBiotechDigital Health
iuvo is a contract research organization (CRO) focused exclusively on ophthalmology, managing clinical trials across anterior and posterior eye segments from protocol development through regulatory submission.
BiotechHealthtechMedical Devices
Julius Clinical is a contract research organization (CRO) that conducts clinical trials and scientific research, with expertise in cardiometabolic, rheumatologic, and other therapeutic areas.
BiotechDigital HealthHealthtech
Leinco Technologies manufactures antibodies and proteins, offering both large- and small-scale IVD antibody and protein production along with CDMO services for scientists in life sciences discovery, biopharmaceutical, and diagnostics segments.
BiotechHealthtechMedical DevicesSt. Louis, US
Lexington Medical designs and manufactures the AEON surgical stapling system for minimally invasive surgery, offering powered and manual handles with a universal array of reloads for surgeons.
Advanced ManufacturingHardwareHealthtechMedical DevicesBedford, US
Leon Amariglio(Founder & CEO)Jameson Kief(Director of Engineering)Marc Jin(Chief Operating Officer)Yuval Somekh(Chief Financial Officer)Andrew Marecki(EVP of Technology)
BoardDavid Roberts(Director)
Co-investorsNorwich Ventures
Magellan Diagnostics develops products that detect and help protect children and adults at risk of lead exposure and lead poisoning.
Digital HealthHealthtechMedical Devices
Magritek manufactures cryogen-free benchtop Nuclear Magnetic Resonance (NMR) spectrometers, including its Spinsolve family (60–100 MHz), for the analytical instrument market.
Advanced ManufacturingDeep TechHardware
Co-investorsRangatira Investments
BiotechMarlborough, US
Peter Glick(Executive Officer, Director)James Jersey(Executive Officer, Director)Jessica Sullivan(Executive Officer)Glick Peter(Executive Officer, Director)
BoardHerbert Hooper(Director)
MedPharm is a contract development and manufacturing organization that partners with pharmaceutical and biotech companies to develop, test, and manufacture topical and transepithelial drug products across multiple delivery routes.
BiotechHealthtechMedical Devices
Co-investorsOrbiMed
San Diego, US
Bridget Carragher(Director)Clinton S. Potter(Director)John Rigg(Executive Officer, Director)Janine LeBlanc(Executive Officer)Peter H. Glick(Executive Officer, Director)Brian Conkle(Executive Officer)
NeoGenomics provides oncology diagnostics and laboratory testing, offering over 500 tests across modalities including molecular testing, IHC, flow cytometry, FISH, next-generation sequencing, and comprehensive genomic profiling for solid tumors and hematologic cancers.
BiotechDigital HealthHealthtech
Patheon, part of Thermo Fisher Scientific, is a contract development and manufacturing organization (CDMO) that also offers clinical research (CRO) services for biotechnology and pharmaceutical sponsors.
Advanced ManufacturingBiotechHealthtech
Co-investorsFrazier Healthcare Partners
Clario provides clinical trial technology and data management services, including endpoint and evidence-generation solutions for site-based, decentralized, and hybrid trials.
AI & Machine LearningBiotechDigital HealthHealthtechMedical DevicesSaaS
Co-investorsRho Ventures
Precision Coating applies industrial surface coatings, including PTFE non-stick coatings and MICRALOX anodizing for chemical resistance, on components across various applications.
Advanced ManufacturingNew Materials
Purna is a pharmaceutical company that handles product development from API to finished product and provides contract manufacturing services.
Advanced ManufacturingBiotechHealthtech
Co-investorsCure Kids Ventures
Vernal Biosciences is a contract development and manufacturing organization (CDMO) offering mRNA and LNP-mRNA process development, GMP manufacturing, custom synthesis, and analytical testing.
Advanced ManufacturingBiotech
Co-investorsDynamk Capital
VIVEbiotech is a contract development and manufacturing organization (CDMO) specialized exclusively in lentiviral vectors for both ex vivo and in vivo administration, following EMA and FDA regulatory requirements.
Advanced ManufacturingBiotechMedical Devices
Exits · 2
IPOs and acquisitions across the tracked portfolioANI PharmaceuticalsNASDAQ: ANIPPerkinelmerNYSE: RVTY
Portfolio news
latest coverage across their companiesANI Pharmaceuticals · marketbeat.com · Aug 20, 2026
Confluent · thesaasnews.com · Oct 24, 2025
PHT · prnewswire.com · Aug 22, 2025
Fund performance · per public LP disclosures · 4
as of Mar 2025| Fund | Vintage | Committed | Net IRR | TVPI | DPI |
|---|---|---|---|---|---|
| Ampersand CF, L.P.LPs: Los Angeles County Employees Retirement Association | 2020 | — | 29.5% | 1.78x | 1.06x |
| Ampersand 2011LPs: New York City Employees' Retirement System, Teachers' Retirement System of the City of New York, New York City Police Pension Fund +1 more | 2011 | — | 21.8% | 3.24x | 3.24x |
| AmpersandLPs: North Carolina Retirement Systems | 2006 | — | 16.6% | 3.12x | 3.12x |
| Ampersand 2006LPs: New York City Employees' Retirement System, Teachers' Retirement System of the City of New York | 2006 | — | 16.9% | 3.12x | 3.12x |
Source: public limited-partner disclosures (CalPERS, CalSTRS). Net IRR / TVPI / DPI as reported by the limited partner; a fund's early-year IRR is an interim estimate (J-curve).
Frequently asked questions
- How many investments has Ampersand made?
- Ampersand has 70 tracked investments, 2 of which have exited via acquisition or IPO, including 1 dated in the last 24 months.
- What stage does Ampersand invest at?
- Ampersand invests at the Growth stage.
- What sectors does Ampersand focus on?
- Ampersand focuses on Biotech, Healthtech, Medical Devices.
- Where is Ampersand located?
- Ampersand is headquartered in Boston, US.
- Who does Ampersand co-invest with?
- Ampersand most often shares deals with Battery Ventures, Blumberg Capital, DCVC (Data Collective), among 47 tracked co-investors.
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