/Investor DB

Helena — Full Portfolio

11 tracked investments · listed companies and verified rows first

Aether Diamondsaetherdiamonds.cominDec 2022

Aether provides carbon offset solutions for weddings, helping couples reduce and offset their event's environmental impact through carbon accounting and certified offset packages.

Climate TechConsumerDirect to ConsumerNew Materials

Daniel Wojno(Founder)Ryan Shearman(Founder)

Co-investorsTRIRECVectors Angel

Catchercatcher.esinMay 2026

Catcher operates a B2B marketplace that connects restaurants with couriers and fleets for last-mile delivery, letting merchants post orders and riders accept them via an app.

B2B MarketplacesFoodTechLogistics & Supply Chain

Co-investorsFaraday Venture PartnersMcWin Capital PartnersB CapitalCerberusCerberus VenturesGreatPoint Ventures+3 more

Cruz Foamcruzfoam.comin𝕏Oct 2022

Cruz Foam produces a compostable protective packaging foam designed as a drop-in replacement for petroleum-based EPS and EPE foam.

Circular EconomyClimate TechNew Materials

John Felts(Founder)in

Co-investorsAt One VenturesCP VenturesRegeneration.VCSony Ventures Corporation

Mattermakematter.co

A manufacturing company focused on domestic production of robotics, aiming to build large-scale factories and apply AI in manufacturing.

Advanced ManufacturingAI & Machine LearningRobotics

Co-investorsPax VenturesScribble VenturesThe Westly GroupARCH Venture PartnersCollaborative FundExor Ventures

Mattergetmatter.com𝕏

Matter is a read-later app for iPhone, iPad, and web that saves articles, newsletters, threads, PDFs, and video/podcast content with parsing and search capabilities.

AI & Machine LearningConsumerMedia & EntertainmentSaaSSan Francisco, US

Ben Springwater(Founder)inRobert Mackenzie(Founder)inMohal Lalbhai(Founder)Nicolas Machado(Designer)in

Co-investorsAdapt VenturesGaingelsGV (Google Ventures)Outliers VCY CombinatorAndreessen Horowitz+15 more

Mattermatter.industriesinAug 2026

Matter. is a venture-backed cleantech company that designs and builds microplastic and micropollutant capture and filtration technology, including products for the laundry sector and industrial-scale water filtration systems for textile manufacturing.

Circular EconomyCleantechClimate TechNew MaterialsBristol, GB

Co-investorsBritish Design FundChrysalixRegeneration.VCTechFounders

Mattermatter.comAug 2026

Matter builds superintelligent vision systems for the physical world, leveraging experience from space and Mars instrumentation.

AI & Machine LearningDeep TechHardware

Nathan Stein(Founder)Thomas Chrien(Founder)Vishnu Sridhar(Founder)

Co-investorsE2MC VenturesLowercarbon CapitalPear VCBezos ExpeditionsCubit CapitalMark Cuban+1 more

Phaidraphaidra.aiinOct 2025

Phaidra develops an AI control platform that uses reinforcement learning to optimize energy efficiency and operational performance in data centers and AI factories.

AI & Machine LearningCloud ComputingDeep TechEnergySeattle, US

Jim Gao(Founder)inVeda Panneershelvam(Co-Founder and Chief Technology Officer)inKatie Hoffman(Founder)inVedavyas Panneershelvam(Founder)

Co-investorsCollaborative FundCool Climate CollectiveEast Valley VenturesFlying Fish VenturesIncubate USIndex Ventures+10 more

Positron AIpositron.aiin𝕏Jan 2026

Positron builds purpose-built hardware and inference accelerator silicon for running Transformer-based generative AI models, offering inference appliances that map HuggingFace Transformers models onto the hardware and expose an OpenAI API-compliant endpoint.

AI & Machine LearningHardwareSemiconductorsLovelock, US

Thomas Sohmers(Chairman)inBarrett Woodside(Founder)inEdward Kmett(Founder)inMitesh Agrawal(CEO)in

BoardRobert Reid(Director)

Co-investorsAloniqAsimov VenturesBanyan VenturesCaucasus VenturesCisco InvestmentsFlume Ventures+17 more

Star Catcherstar-catcher.comin𝕏Apr 2026

Star Catcher builds a space-based power grid that uses optical power beaming to transmit concentrated solar energy directly to satellites' existing solar arrays, increasing their available power without hardware modifications.

Deep TechEnergySpace TechJacksonville, US

Michael Snyder(Executive Officer, Director)inAndrew Rush(Executive Officer, Director)inBryan Lyandvert(Founder)inNathan O'Konek(Executive Officer)in

BoardDavid Rothzeid(Director)inJeff Johnson(Director)

Co-investorsAurelia FoundryB Capital GroupB4 CapitalFJ LabsGreatPoint VenturesInitialized Capital+8 more

Twin Healthtwinhealth.cominOct 2021

Uses a Whole Body Digital Twin to help people manage and reverse chronic metabolic disease.

AI & Machine LearningDigital HealthHealthtechMountain View, US

Jahangir Mohammed(Founder)inTerry Poon(Co-founder, EVP and Chief Technology Officer)inMaluk Mohamed(Co-founder, VP Research and Head of India)inJennifer Bealer(Executive Officer)inEric Carlson(Executive Officer)inLisa Shah, MD(EVP and Chief Medical Officer)

Co-investorsAble PartnersCorner VenturesDag VenturesICONIQICONIQ GrowthLTS Investments+6 more

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.