Fundraising Fox

Third Act Ventures

Venture capital

San Diego · Seed · 2 people tracked

Find your way into Third Act Ventures

831 people in our graph share verified history with the Third Act Ventures team — schools, employers, funds. One of them is your warm intro.

Paul Kwanunlockedknows Max Zamkow · together at Stanford University (overlapped)
×7knows the team · via Stanford University
knows the team · via Westminster School, London
×3knows the team · via Stanford University School of Medicine
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Investment thesis

Third Act Ventures invests in health technology and AgeTech companies, backing startups building solutions for older adults and the aging population. The firm focuses on seed-stage investments in the health tech sector, supporting founders addressing pressing challenges in health care and serving the 50+ demographic.

Source: firm website, verified Aug 3, 2026.

Stage
Seed
HQ
San Diego, CA, US
Instruments
Equity
Founded
2021
Tracked investments
33

Team · 2 people

from the firm's website & public directories
Robert Zamkow· General Partner

What they invest in

from 27 of 33 portfolio companies

Healthtech ×22Digital Health ×12AI & Machine Learning ×8Wellness & Fitness ×6SaaS ×5Consumer ×4Medical Devices ×4IoT ×3

HQs:United States×20Mexico×1

Who they back

founder profiles across 19 portfolio companies
79%
solo founders
15 of 19 mapped founding teams
58%
repeat founders
of 19 founders with career history

Founding team size:solo founder×152 founders×13 founders×3

Where their founders studiedfrom 18 founders with education data

UCSF Rosenman Institute ×2

Where their founders worked beforefrom 19 founders with career history

Duke University ×3Stony Brook University ×2

Accelerator rootsportfolio companies that came through a program

Techstars ×4

Investments · 33 tracked

founders shown can be your intro path

By year:2024 · 12023 · 12022 · 12019 · 25 dated

Alertgyalertgy.comin𝕏

Alertgy develops a non-invasive wristband device for real-time blood glucose monitoring in diabetics using Deep-Gluco sensor technology.

HealthtechIoTMedical DevicesMelbourne, US

Marc Edward Rippen(Executive Officer)

PartnerMax Zamkow· solo GP

Co-investorsMedStartr Ventures

Attn: Graceattngrace.comin𝕏

Attn: Grace designs and manufactures plant-based, skin-safe incontinence products for women, manufactured in carbon-neutral facilities.

Circular EconomyConsumerFemTechHealthtech

Alexandra Fennell(Founder)in

PartnerMax Zamkow· solo GP

Co-investors37 AngelsBackbone AngelsFlybridge Capital PartnersHow Women InvestIngeborg InvestmentsJoyance Partners+7 more

Biotiabiotia.ioin𝕏

Biotia develops infectious disease diagnostics using clinical metagenomic next-generation sequencing paired with artificial intelligence, offering diagnostic tests and genomics software for patients, providers, and health systems managing challenging infections.

AI & Machine LearningBiotechDigital Health

Chris Mason(Founder)inNiamh O'Hara(Founder & CEO)inNiamh B. O'Hara(Founder)in

PartnerMax Zamkow· solo GP

Co-investorsCloquet Capital Partners, LLCDigitalDx VenturesEverywhere VenturesRed Bear VenturesSand Hill AngelsSeedToB+9 more

Carecare.coach

care.coach is a digital health platform that serves elderly individuals and their caregivers through integrated technology, focusing on fall prevention, reducing emergency department visits, and addressing social isolation in Medicare and Medicaid populations.

Digital HealthHealthtechLongevityWellness & Fitness

Victor Wang

PartnerMax Zamkow· solo GP

Co-investorsAARPStartUp HealthCartmell VenturesDaybreak PartnersBuenavista Equity Partners

Careswitch Health falsecareswitch.comin𝕏

Careswitch offers Looper, an AI scheduling tool for home care agencies that handles same-day caregiver call-outs by rebuilding visit routes, ranking replacement caregivers, drafting outreach messages, and escalating uncovered visits.

AI & Machine LearningDigital HealthSaaS

PartnerMax Zamkow· solo GP

Co-investorsEntrepreneurs Roundtable Accelerator (ERA)Great Oaks Venture Capital

Casparcaspar.aiin

Caspar develops a privacy-first Physical AI platform that processes continuous real-world data to help healthcare care teams intervene earlier and deliver proactive care at scale, particularly for vulnerable populations.

AI & Machine LearningDigital HealthHealthtechMedical Devices

PartnerMax Zamkow· solo GP

Cobulivecobu.comin𝕏

Cobu is a community building platform that helps residents of apartment buildings form genuine communities and combat loneliness.

AI & Machine LearningPropTechSocialBoston, US

Ben Pleat(Co-Founder & CEO)in

PartnerMax Zamkow· solo GP

Co-investorsBeni Venture CapitalTechstarsWalnut Venture Associates

Denturlydenturly.com

PartnerMax Zamkow· solo GP

Doyoukaredoyoukare.comin𝕏

KARE connects caregivers with senior living communities by providing staffing solutions for the caregiving industry.

B2B MarketplacesHealthtechHR TechGuadalajara, MX

PartnerMax Zamkow· solo GP

Eversoundhqeversoundhq.com

PartnerMax Zamkow· solo GP

Gynisusgynisus.com

Gynisus offers an AI-driven payment integrity platform for health insurance payers, automating DRG assignment, NCCI coding edits, clinical validation, medical necessity review, and fraud/waste/abuse detection.

AI & Machine LearningHealthtechInsurTech

PartnerMax Zamkow· solo GP

Co-investorsExpert DOJO

Joe and Bellajoeandbella.com

Joe and Bella designs and sells magnetic button-down shirts for men with adaptive features like one-handed fastening and stretch cuffs.

ConsumerDirect to ConsumerE-commerceHealthtechWellness & Fitness

Jimmy Zollo(CEO & Co-Founder)in

PartnerMax Zamkow· solo GP

Co-investorsChicago Early Growth Ventures (CEGV)IrishAngelsIU VenturesSandalphon CapitalScaleGood Fund LP (powered by TELUS)

KeborMedkebormed.comin𝕏

Kebormed develops medical devices spanning multiple medical fields and conditions, working at the intersection of medicine and technology.

AI & Machine LearningCloud ComputingDigital HealthMedical DevicesCleveland, US

Radu Iancu(Founder & CEO)inWarren Goldenberg(President & COO)inNikolaos Fikas(Chief Security Officer)in

PartnerMax Zamkow· solo GP

Labrador Systemslabradorsystems.cominSep 2019

Labrador Systems develops robots for everyday assistance, applying sensor, processor, and algorithm technology from augmented reality and self-driving fields to build practical robots that support people in daily life.

ConsumerHardwareHealthtechRoboticsOak Park, US

Mike Dooley(CEO)inNikolai Romanov(Executive Officer, Director)in

BoardCyril Ebersweiler(Director)in

PartnerMax Zamkow· solo GP

Co-investorsSOSV

Mighty Healthmightyhealth.comin𝕏Defunct

Mighty Health provides a comprehensive health program designed to help older adults maintain and improve their daily functioning and independence.

HealthtechWellness & FitnessSan Francisco, US

Felipe Lopes(Founder)inBernard Chang(Founder)inJames Li(Founder)in

PartnerMax Zamkow· solo GP

Co-investorsY CombinatorZ Venture CapitalRRE VenturesWill Ventures

Morrowusemorrow.com

Morrow provides financial products and services designed to help American workers build long-term financial security and confidence through personalized experiences centered on trust.

FintechHR TechWellness & Fitness

PartnerMax Zamkow· solo GP

Co-investorsFullCircle

Naborforcenaborforce.comin𝕏

Naborforce connects older adults and their families to a vetted network of community members (Nabors) who provide caregiving support, companionship, and assistance.

B2B MarketplacesFuture of WorkHealthtechWellness & FitnessRichmond, US

Paige Wilson(Founder and CEO)Kelly Johnson(Executive Officer, Director)in

BoardEric Hsia(Director)inTania Grant(Director)in

PartnerMax Zamkow· solo GP

Co-investorsClaritas CapitalTechstarsThe Artemis FundTransLink CapitalClaritas Healthcare

neMedIOnemedio.com

Brooklyn, US

Sabrina Varanelli(Executive Officer, Director)

PartnerMax Zamkow· solo GP

Co-investorsNotation CapitalStory VenturesSupernode Ventures

Nursedashnursedash.comin𝕏

NurseDash operates an on-demand staffing platform that connects clinicians with healthcare facilities to fill shifts.

Digital HealthHealthtechMarketplacesHouston, US

PartnerMax Zamkow· solo GP

Co-investorsAmerican Family Insurance Institute for Corporate and Social Impact

Nymbl Sciencenymblscience.com

HealthtechDenver, US

Edward Likovich(Executive Officer, Director)inJames Cook(Executive Officer, Director, Promoter)

BoardThomas Virden(Director)Ben Wire(Director)inChris Saxman(Director)Rohit Seth(Director)

PartnerMax Zamkow· solo GP

Co-investorsAllied Venture PartnersCobalt VenturesFemHealth VenturesForefront VentureHealthtech CapitalRockies Venture Club+2 more

Omeomekitchen.comin𝕏

Ome makes smart knobs that retrofit onto existing stoves to prevent kitchen fires through automatic shut-off, remote monitoring, and cooking timers.

HardwareHealthtechIoTDurham, US

Akshita Iyer(Founder & CEO)in

PartnerMax Zamkow· solo GP

Co-investorsigniteXL VentureTechstarsZane Venture FundLegendary Ventures, Llc.

Orahorah.care

PartnerMax Zamkow· solo GP

Pear Suitepearsuite.comin𝕏May 2023 · $2.5M

Pear Suite operates a care navigation platform that connects community health workers (CHWs) with community-based organizations and healthcare providers to help underserved populations access health and social services.

Digital HealthHealthtechImpact & Social GoodSaaSWellness & FitnessSeattle, US

Colby Takeda(Founder & CEO)inNick Lockett(Founder)in

PartnerMax Zamkow· solo GP

Co-investors7BC Venture CapitalAtento CapitalEnable VenturesEquitage Ventures, L.L.C.Flare Capital PartnersIncisive Ventures+7 more

Peelawaylabs bed sheetspeelawaylabs.comin𝕏Mar 2019

Peel Away Labs makes Peelaways, a multi-layer waterproof bed sheet that lets caregivers change bedding by peeling away a soiled layer without stripping the bed.

ConsumerDirect to ConsumerE-commerceHealthtechJersey City, US

MC(Founder & CEO)

Boardmaxwell cohen(Executive Officer, Director)

PartnerMax Zamkow· solo GP

Co-investorsAEON FoundryAlpine MeridianNew York Venture Partners

Pregnancycoachpregnancycoach.comin𝕏

Smart Human Dynamics develops Pregnancy Coach, a digital health platform that monitors physiological metrics and recommends behaviors to reduce pregnancy complications for expectant mothers.

Digital HealthFemTechHealthtechMedical DevicesSan Francisco, US

PartnerMax Zamkow· solo GP

roobrikroobrik.cominOct 2022Acquired

Roobrik provides science-based online surveys, financial-readiness assessments, and chat tools that help prospective senior living residents and their families evaluate their options while converting more website visitors into qualified leads for senior living providers.

Digital HealthHealthtechMarketing TechSaaSSales TechGreensboro, US

Nate O'Keefe(Founder)inJudith Conaway(Executive Officer)David Levin(Director)Maureen O'Connor(Director)William Clark(Director)

PartnerMax Zamkow· solo GP

Co-investorsIDEA NCJurassic CapitalThe Launch PlaceHatteras Venture Partners

Tembo Healthtembo.healthin

Tembo Health provides care coordination and management services for seniors, particularly those with chronic conditions and dementia.

Digital HealthHealthtechLongevity

Anurag Gupta(CEO and founder)in

PartnerMax Zamkow· solo GP

Co-investorsCity LightEntrepreneurs Roundtable Accelerator (ERA)HDS CapitalHeadwater VenturesMaccabee VenturesOceans Ventures+3 more

Third Eye Healththirdeyehealth.netin

Third Eye Health operates a network of board-certified physicians providing virtual post-acute care and after-hours coverage for skilled nursing facilities and patients, using mobile technology and care coordination services.

Digital HealthHealthtechChicago, US

Daniel Herbstman(Executive Officer, Director, Promoter)Jamison Feramisco(Director)Lucas Baran(Executive Officer, Director, Promoter)

BoardMichael Sachs(Director)

PartnerMax Zamkow· solo GP

Co-investorsEquitage Ventures, L.L.C.Generator VenturesSPRINGROCK VENTURESS1 Seed VenturesWavemaker Three-Sixty Health

TrustyCaretrusty.care

PartnerMax Zamkow· solo GP

Co-investorsAEON FoundryBoro CapitalK20 FundWestchester AngelsThe Fund

TSO Lifetsolife.com

Wesley Chapel, US

David Sawyer(Executive Officer, Director)inRalph Stoddard(Director)Stella Parris(Executive Officer)Margaret Sawyer(Director)

BoardKATIE SCHMITZ(Director)JUSTIN KELLY(Director)

PartnerMax Zamkow· solo GP

Co-investorsBeresford VenturesFlorida FundersJohnson Venture Partners

Voxelavoxela.ai

Voxela provides monitoring and incident detection systems for care facilities and hospitals, using AI-generated analytics to prevent falls, wandering, and other accidents in elderly care settings.

AI & Machine LearningHealthtechIoTSilicon Valley, US

Yuta EndoinGoutham KamathinYusuke Yoshidain

PartnerMax Zamkow· solo GP

Co-investorsbasepartnersLongevity Venture Partners

weblinkcarecar.coin𝕏Dec 2024

CareCar connects health plan members with a network of caregivers to improve access to care services.

Digital HealthHealthtechSaaSDenver, US

Mike Matz(Executive Officer)Jennifer Gallinger(Executive Officer)Joshua Itano(Executive Officer, Director)

BoardUriridiakoghene Onovakpuri(Director)Matt Smith(Director)inScott Reid(Director)

PartnerMax Zamkow· solo GP

Co-investorsKapor CapitalKickstartReinventure CapitalService Provider CapitalWestbound Equity PartnersImpact America Fund

Welbiwelbi.coin

Welbi provides software solutions that enable senior living communities to deliver personalized care to older adults.

AI & Machine LearningData & InfrastructureHealthtechSaaS

Elizabeth Audette-Bourdeau(Founder and CEO)in

PartnerMax Zamkow· solo GP

Co-investorsGraphite VenturesSoGal Ventures

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has Third Act Ventures made?
Third Act Ventures has 33 tracked investments, 1 of which have exited via acquisition or IPO, including 1 dated in the last 24 months.
What stage does Third Act Ventures invest at?
Third Act Ventures invests at the Seed stage.
What sectors does Third Act Ventures focus on?
Third Act Ventures focuses on Consumer, Digital Health, Healthtech, Longevity, Wellness & Fitness.
Where is Third Act Ventures located?
Third Act Ventures is headquartered in San Diego, US.
Who does Third Act Ventures co-invest with?
Third Act Ventures most often shares deals with Techstars, AEON Foundry, Equitage Ventures, L.L.C., among 88 tracked co-investors.

Media · Podcasts & interviews

featuring the team

AgeTech Startup Opportunities: Third Act Ventures' Max Zamkow on Healthcare Staffing, Retirement Solutions, and Future Trends | The AgeTech Podcast S4E6 - TheGerontechnologist

Keren Etkin · Max Zamkow · thegerontechnologist.com

Art of Aging: Venture Capital and Age Tech with Max Zamkow of Third Act Ventures

United Church Homes · Max Zamkow

Max Zamkow, Managing Partner of Third Act Ventures reveals The Reason Why Age-Tech Lacks Innovation

VITALIZE Venture Capital · Max Zamkow

Taking AgeTech from Niche to Mainstream, with Max Zamkow of Third Act Ventures

VITALIZE Venture Capital · Max Zamkow

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