Blue Trail Partners — Full Portfolio

Ataraxis develops AI foundation models that analyze multi-modal patient data, including pathology slide images, to assess cancer aggressiveness and predict recurrence risk and treatment response.

AI & Machine LearningBiotechHealthtechNew York, US

KGKrzysztof Geras(Founder)inJWJan Witowski(Founder)in

BoardKrish Ramadural(Director)Rohan Ganeshananthan(Director)

Co-investorsAIAIX VenturesFLFloating PointGIGiant Ventures Global LlpOBObvious VenturesTRTranspose Platform ManagementBEBertelsmann Investments+1 more

BrandYourself provides software and managed services to help individuals and businesses manage, improve, and protect their online reputation and personal data privacy.

ConsumerCybersecurityMarketing TechSaaSNew York, US

PAPatrick Ambron(CEO)inPKPete Kistler(Co-founder)in

Co-investorsBLBlossom Street VenturesBOBoston Harbor AngelsNENew York Venture PartnersUPUpVentures CapitalWAWalnut Venture AssociatesFOFounders Fund+1 more

Community Phone provides home and business phone service combining traditional reliability with modern features like spam blocking and voicemail-to-text, without requiring internet or contracts.

AI & Machine LearningConsumerSaaSSan Francisco, US

JGJames Graham(Founder)inTaryn McKenzie-Mohr(Growth Product Manager)Ellie Lasater-Guttman(Head of Ops)Nate Joseph(Growth Lead)Ana Monroy(Sourcer)Ian Jones(Vice President Sales and Support)

Co-investorsJUJude GomilaY Y CombinatorAGAgrolimen VenturesLALachy Groom

Extend builds infrastructure that processes unstructured data at scale for applications in healthcare, real estate, insurance, and finance.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareNew York City, US

KBKushal Byatnal(Founder)inEBEli Badgio(Founder)inAndrew Jamison(Founder)Danny Morrow(Founder)Guillaume Bouvard(Founder)Kushal Byatnal Eli Badgio(Founder)

Co-investorsHAHawk Hill VenturesHOHomebrewINInvest In DataY Y CombinatorAMAmerican Express Ventures (Amex)ANAndreessen Horowitz+15 more

Flume Internet is a US fiber ISP that lights unused dark fiber to deliver gigabit and multi-gigabit service to homes and buildings.

New York, US

Prashanth Vijay(Executive Officer, Director)inPrashanth Vijayanandan(Executive Officer, Director)

BoardBrandon Gibson(Director)

Co-investorsEVEverywhere VenturesHOHorseplay VenturesAMAmplo VenturesHYHyperplane Venture CapitalTHThe Fund

Fond was an employee rewards and recognition platform (originally launched as AnyPerk) that offered perks, discounts, and peer recognition tools for companies.

Enterprise SoftwareFintechFuture of WorkHR TechSaaSSan Francisco, US

TFTaro Fukuyama(CEO)inSTSunny Tsang 🌞(Chief Designer)inAtsuhiro Takahashi(Engineer)KMKyle Mack(Sales Team Lead)inAnthony Powels(Lead Architect)Diana Harms(Recruiting manager)

Co-investorsDCDCM VenturesDGDG Ventures, Inc.FUFundersClubGLGlobal BrainOPOpen Network LabY Y Combinator+4 more

Grata offers an AI-powered search and deal sourcing platform for finding private middle-market companies, including niche businesses with small digital footprints.

AI & Machine LearningData & InfrastructureFintech

Hey Jane is a US virtual clinic that connects patients with clinicians via telehealth for abortion care and other reproductive and sexual health services.

Digital HealthFemTechHealthtechNew York City, US

KFKiki Freedman(Founder)inAPAmy Potter(Chief Medical Officer)inGaby Izarra(Founder)Kate Shaw(Founder)

Co-investors3737 AngelsALAlumni VenturesAMAmboy Street VenturesDODorm RoomFEFeldsmith CapitalGAGaingels+9 more

Keychain operates an AI-powered platform connecting CPG brands and retailers with contract manufacturers.

OHOisin Hanrahan(Founder)inJordan Weitz(Founder)inUmang Dua(Founder)in

Co-investorsBOBoxGroupBRBright Pixel CapitalCOCollaborative FundCOCommerce VenturesDNDnx VenturesGEGeneral Mills+9 more

Lendtable provides cash advances to employees to enable them to contribute to their 401(k) plans and capture employer matching contributions, recouping its costs from a portion of the vested match earnings.

FintechSan Francisco, US

SCSheridan Clayborne(Founder)inMJMitchell Jones(Founder)inYav Todorov(Engineering)Isaiah de la Fuente(Business Development)Celena Chong(Marketing)

Co-investorsBTBT Growth CapitalDRDragon CapitalFIFiDi VenturesOPOpen Opportunity FundPAPartech VenturesVAValia Ventures+12 more

Lightyear provides software solutions to improve B2B telecommunications operations, addressing inefficiencies in a largely static industry.

Data & InfrastructureEnterprise SoftwareSaaSNew York City, US

Ryan Schrack(Founder)inDTDennis Thankachan(Founder)in

BoardZac Mohring(Director)Yousuf Khan(Director)

Co-investorsAMAmplo VenturesCOContraryDADarco CapitalLULudlow VenturesRIRidge VenturesZIZigg Capital

Pier builds financial access tools for innovators and entrepreneurs.

AI & Machine LearningEnterprise SoftwareFintechSaaSSan Francisco, US

JZJessica Zhang(Founder)inAHAlex Hegevall Clarke(Founder)inIgor Mascarenhas(Founder)Lucas Prado(Founder)Mauricio Banduk(Founder)Rafael Oliveira(Founder)

Co-investorsHOHorizonNENeer Venture PartnersY Y CombinatorACACME CapitalAIAidenlair CapitalATAttack Capital+9 more

PromptLayer provides a prompt content management system, evaluation harness, and observability tools for teams building large language model applications.

AI & Machine LearningDeveloper ToolsSaaSNew York City, US

Jonathan Pedoeem(Founder)inJared Zoneraich(Founder)

Co-investorsGEGeek VenturesSCScOp Venture CapitalVEVerissimo VenturesBRBrowder CapitalSTStellation Capital

QA Wolf builds an AI-powered testing platform that autonomously explores applications, writes test code, and executes tests in parallel for web, mobile, and native apps.

AI & Machine LearningDeveloper Tools

Jon Perl(Founder)Laura Cressman(Founder)Scott Wilson(Founder)

Co-investorsGLGlynn Capital ManagementINInspired CapitalLILiam HorneNONotation CapitalSCScale Venture PartnersTHThreshold Ventures+2 more

Qualifi is a hiring platform that lets recruiters send pre-recorded, voice-based automated phone screens and collect on-demand candidate responses, with follow-up scheduling built in.

Future of WorkHR TechSaaSNoblesville, US

DMDarrian Mikell(CEO / Co-Founder)inDMDevyn Mikell(COO / Co-Founder)inDPDeSean Prentice(VP of Engineering / Co-Founder)in

Co-investorsDEDebut CapitalELElevate VenturesRARally Ventures Management, LlcSEService Provider CapitalSISixty8 CapitalTETechstars+7 more

Retell AI builds an enterprise-grade voice AI platform that handles phone calls for industries including healthcare, delivery, and insurance.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

BWBing Wu(Founder)inTLTodd Li(Founder)inEWEvie Wang(Founder)inWYWeijia Yu(Founder)inZZZexia Zhang(Founder)inRyan Y(Founder)

Co-investorsCACarya Venture PartnersY Y CombinatorALAlt CapitalANAndreessen HorowitzCACapitalize VCSASaxeCap Advisors

Rewind.ai is a platform that provides access to 400+ AI tools and models—including self-hosted open-source models (Qwen 2.5, FLUX, Kokoro, Whisper) and external models (GPT-4, Claude, Gemini)—through a single token-based system with a free tier.

AI & Machine LearningCloud ComputingDeveloper ToolsSaaS

Co-investorsFLFlucas VenturesTOTodd and Rahul’s Angel FundANAndreessen HorowitzFIFirst Round CapitalH.H.I.G. Growth PartnersINInsight Partners+1 more

Runhappy builds software and provides managed services to handle event bookings for venues, managing inquiries, reservations, and guest communication across all channels so venue teams can focus on delivering experiences.

AI & Machine LearningEnterprise SoftwareSaaSSales TechNew York City, US

MGMark Ghermezian(Founder)Kevin Dutra(Founder)inManisha Shah(Founder)inNANaveen Akunuri(Co-founder & CTO)in

Co-investorsGRGradient VenturesLELerer HippeauLULudlow VenturesM]m]x[v CapitalMAMaccabee VenturesVIVine Ventures+2 more

Season provides personalized nutrition consulting through board-certified dietitians matched to patients via online assessment, with meal planning and prepared meals delivered based on individual health goals.

Digital HealthHealthtech

JHJosh Hix(CEO)in

Co-investorsABAble PartnersANAndreessen HorowitzCOCoalition OperatorsHEHealthy VenturesIMImagination CapitalVAValspring Capital+5 more

Slang AI provides a voice AI platform for full-service restaurants to answer calls, book reservations, and handle inquiries 24/7 with customized, warm service.

AI & Machine LearningFoodTechHR TechSaaSNew York City, US

ASAlex Sambvani(Founder)inGabe(Co-founder)Gabe Duncan(Founder)Gabriel Duncan(Founder)

Co-investorsCOCollide CapitalHOHomebrewPAPath VenturesSTStage 2 CapitalSTStartXTETechstars+7 more

Stepful provides affordable, online healthcare education programs with live instruction and personalized coaching to train students for healthcare careers.

EdTechHealthtechNew York City, US

CMCarl Madi(Founder)inTHTressia Hobeika(Founder)inESEdoardo Serra(Founder)inPaula Hernandez(Head of Student Operations)Emmanuel Chiappini(Head of Growth)Kate Cooper(Public Policy Lead)

Co-investorsALAlleyCorpEQEqual Opportunity VenturesFOForesite CapitalINIntermountain HealthOAOak HC/FTPIPioneer+11 more

Talaria Scientific is building a multi-agent software harness for computational science research, automating routine work like data wrangling, system administration, and validation while keeping the scientist in the loop and using HPC as a guardrail.

AI & Machine LearningDeep TechDeveloper Tools

Co-investorsANAndreessen Horowitz

Tavus develops human-like AI agents called PALs that can see, hear, act, and understand in real-time, offering bespoke, fully-managed deployments for various enterprise workflows.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

HRHassaan Raza(Founder)inQFQuinn Favret(Founder)inRishabh Dhar(Founder)Sagar Malhi(Head of Product)Reh Hassan(Recruiter)Ari Korin(Senior Engineer)

Co-investorsCOCorrelation VenturesCRCRV (Charles River Ventures)HIHigh AlphaHUHubSpot VenturesMAMantis CapitalSCScale Venture Partners+20 more

Wilco was an AI-native learning platform that functioned as a "flight simulator" for developers, offering practical, real-world coding scenarios and quests to help engineers develop judgment and hands-on experience with complex systems.

AI & Machine LearningDeveloper ToolsEdTech

Co-investorsFLFlybridge Capital PartnersSASamsung NextHEHetz VenturesSESecret Chord Ventures