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Altos Ventures Portfolio Companies

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

Last updated: July 2026

Altos Ventures Investment Overview

Portfolio Companies
146
Total Invested
$1.4B
Average Investment
$16.8M

Altos Ventures's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
Proteomedix2021Debt FinancingUndisclosedSchlieren
Self Financial2021Series EUndisclosedAustin
TeamSense2023SeedUndisclosedSeattle
Kiddom2021Series CUndisclosedSan Francisco
Soraban2025Series AUndisclosedSan Francisco
OpenSesame2021Series DUndisclosedAustin
Airspace Link2022Series BUndisclosedDetroit
Mercaso2025Debt FinancingUndisclosedLos Angeles
Squid2026Venture - Series Unknown$4.0MZug
AfterQuery2026Series A$500KSan Francisco

Complete List of Altos Ventures Portfolio Companies (146)

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#CompanyStageAmountLocation
1ProteomedixDebt FinancingUndisclosedSchlieren, Switzerland
2Self FinancialSeries EUndisclosedAustin, United States
3TeamSenseSeedUndisclosedSeattle, United States
4KiddomSeries CUndisclosedSan Francisco, United States
5SorabanSeries AUndisclosedSan Francisco, United States
6OpenSesameSeries DUndisclosedAustin, United States
7Airspace LinkSeries BUndisclosedDetroit, United States
8MercasoDebt FinancingUndisclosedLos Angeles, United States
9SquidVenture - Series Unknown$4.0MZug, Switzerland
10AfterQuerySeries A$500KSan Francisco, United States
BiotechnologyHealth CareHealth DiagnosticsMedical

Proteomedix (an Onconetix company; NASDAQ:ONCO) is a healthcare company whose mission is to transform prostate cancer diagnosis.

Schlieren, Switzerland
September 2021
Debt Financing

Founder Contacts

19,000+ verified contacts

Financial ServicesFinTechInternetPersonal Finance

Self Financial is a venture-backed fintech startup that helps customers build credit and save money.

Austin, United States
September 2021
Series E

Founder Contacts

19,000+ verified contacts

Information ServicesInformation TechnologySoftware

TeamSense is empowering organizations to better engage and enable their hourly workers.

Seattle, United States
August 2023
Seed

Founder Contacts

19,000+ verified contacts

EdTechEducationE-LearningSoftware

Kiddom is an education platform offering a digital curriculum to engage students virtually or in the classroom.

San Francisco, United States
August 2021
Series C

Founder Contacts

19,000+ verified contacts

AccountingArtificial Intelligence (AI)Information TechnologySoftwareTax Preparation

Soraban is building an admin AI assistant for accounting firms

San Francisco, United States
August 2025
Series A

Founder Contacts

19,000+ verified contacts

EdTechEducationVirtual Workforce

OpenSesame is an e-learning company that provides online training courses for businesses and employees.

Austin, United States
July 2021
Series D

Founder Contacts

19,000+ verified contacts

AerospaceDrone ManagementGeospatialGovernmentMapping Services

Airspace Link is an FAA approved UAS/Drone Low Altitude Authorization and Notification Capability (LAANC) Platform

Detroit, United States
June 2022
Series B

Founder Contacts

19,000+ verified contacts

Consumer GoodsE-CommerceRetailWholesale

Mercaso develops and operates an e-commerce platform that offers wholesaling of various types of products.

Los Angeles, United States
June 2025
Debt Financing

Founder Contacts

19,000+ verified contacts

AppsBlockchainDeveloper Tools

Squid is a router protocol that connects users and developers with cross-chain liquidity that offers swapping any token between blockchains.

Zug, Switzerland
May 2026
$4.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)B2BBig DataData Collection and Labeling

AfterQuery is an AI data company that builds expert-level datasets to help train and improve AI models.

San Francisco, United States
April 2026
$500K
Series A

Founder Contacts

19,000+ verified contacts

EdTechEducationRecruitingSkill AssessmentVocational Education

SaaS, L&D, Professional Development, HRTech, Talent management

São Paulo, Brazil
April 2022
Series A

Founder Contacts

19,000+ verified contacts

BeautyE-CommerceRetail

Yamibuy is the leading Asian-centric Internet retailer in the U.S.

Brea, United States
March 2022
Series B

Founder Contacts

19,000+ verified contacts

BankingConsumer LendingCredit CardsFinancial ServicesFinTechMobile Payments

Japanese Fintech startup that offers mobile wallet with Visa prepaid cards to consumers as well as remittance services to businesses

Tokyo, Japan
March 2022
Series D

Founder Contacts

19,000+ verified contacts

AppsConsumerOperating SystemsProperty ManagementReal EstateSelf-Storage

Stuf is a next generation self-storage startup with a mission to be the home away from home for people's "stuff".

New York, United States
February 2023
Series A

Founder Contacts

19,000+ verified contacts

AutomotiveE-CommerceRetail

Clutch is an online used vehicle retailer that enables customers to browse and purchase from a wide selection of pre-owned vehicles.

Toronto, Canada
February 2025
Series D

Founder Contacts

19,000+ verified contacts

Financial Services

Quartr is a software company. Our product suite consists of our free mobile application, and a web application built for professionals.

Stockholm, Sweden
July 2025
$10.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

Developer APIsEmbedded SoftwareFinTechSoftware

Salsa offers a payroll infrastructure platform that allows businesses to lauch embedded payroll products quickly and efficiently.

San Francisco, United States
April 2025
$20.0M
Series A

Founder Contacts

19,000+ verified contacts

Financial ServicesFinTechInformation TechnologyPayments

Conduit is a better way for global businesses to simply and cheaply move money with faster speed, better visibility and fewer steps.

Boston, United States
March 2025
$30.0M
Series A

Founder Contacts

19,000+ verified contacts

GeospatialMapping ServicesNavigationRemote SensingSmart Cities

Urban Sky offers a revolution in remote sensing through the new stratospheric microballoon.

Denver, United States
February 2025
$30.0M
Series B

Founder Contacts

19,000+ verified contacts

Auto InsuranceCommercial InsuranceFinTechInsuranceInsurTechProperty InsuranceSaaSSales AutomationSoftware

XILO is a workflow automation platform designed for traditional insurance agencies and companies.

San Diego, United States
January 2025
$7.2M
Series A

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)ChatbotCRMInformation TechnologySaaSSoftware

Channel Talk is a customer communication platform that combines live chat, CRM, and collaboration tools to help businesses with customers.

Seoul, South Korea
January 2025
$7.5M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

GamingOnline GamesVideo Games

Nirvanana is a game developer that develops an online gaming platform to connect gamers across the world.

Seongnam, South Korea
November 2024
$1.4M
Series A

Founder Contacts

19,000+ verified contacts

B2BBillingFinTechFitnessMachine LearningPaymentsSaaSSoftware

PushPress is a vertical B2B SaaS company that offers a gym management software serving SMB boutique fitness studios market.

Claymont, United States
October 2024
$20.0M
Series B

Founder Contacts

19,000+ verified contacts

CrowdfundingInternetMedia and Entertainment

Makestar is a platform that provides K-culture content and information.

Seoul, South Korea
October 2024
$22.4M
Series D

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)B2BEnterprise SoftwareGenerative AIIntellectual PropertyLegal TechSaaS

IP Operating System for IP/Brand Professionals

Los Angeles, United States
October 2024
$16.0M
Series A

Founder Contacts

19,000+ verified contacts

Showing 1-25 of 146 portfolio companies

Frequently Asked Questions About Altos Ventures

How many companies has Altos Ventures invested in?

Altos Ventures has invested in 146 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Altos Ventures invest in?

Altos Ventures's top investment sectors include Software, FinTech, Financial Services, Information Technology, Artificial Intelligence (AI). The firm invests across 74 different industry categories.

What is Altos Ventures's largest investment?

Among tracked funding rounds, Conduit received $30.0M in a Series A round. Altos Ventures's total known invested capital is $1.4B.

What is the average investment size for Altos Ventures?

Altos Ventures's average investment size is $16.8M across its portfolio of 146 companies.

What are Altos Ventures's most recent investments?

Recent Altos Ventures portfolio additions include Proteomedix, Self Financial, TeamSense, Kiddom, Soraban. These companies were founded in 2020 or later.

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