Sie Ventures — Full Portfolio

Brings fertility benefits to the workplace.

Biographica (Graphica) uses multi-modal machine learning and high-throughput sequencing to identify and prioritize genetic targets for crop gene-editing, working with trait developers to design effective edits.

AgTechAI & Machine LearningBiotechLondon, GB

Cecy Price(CEO)inDominic Hall(CTO)in

Co-investorsEntrepreneur FirstFaberFaber Capital SCR SASuperSeedCardumen CapitalChalfen Ventures+4 more

Platform democratising access to recreational tennis.

Co-investorsCollide Capital

By Rotation is a fashion rental platform that allows consumers to rent designer clothing and lend or monetize their own wardrobes.

Circular EconomyConsumerMarketplaces

Co-investorsCornerstone VCRedrice VenturesTrue.

Cino provides a shared virtual card solution that allows groups to automatically split expenses among members based on customizable ratios, with transactions processed through Apple Pay or Google Pay.

Fintech

Co-investorsBalderton CapitalConnect VenturesConnect VenturesHeartfelt CapitalTera Ventures

Emm develops a medical-grade silicone menstrual cup embedded with ultra-thin sensors that tracks cycle metrics such as flow, duration, and frequency to give users personalised insights into their menstrual health.

Digital HealthFemTechHardware

Jenny Button(Founder)in

Co-investorsBlue Lion GlobalLunar VenturesStart CodonWormhole CapitalAlumni Ventures

Fides offers a corporate governance platform that centralizes company data, deadlines, and documents across legal entities and governing bodies for entity and shareholding management.

AI & Machine LearningLegalTechSaaS

Lisa Gradow(Founder)in

Co-investorsAuxxoLa Famiglia

Fifth Dimension AI is a decision intelligence platform for real-assets investors and managers that connects to systems like Yardi, Argus, Dealpath, and SharePoint to automate deal screening, lease abstraction, due diligence, and portfolio risk monitoring.

AI & Machine LearningFintechPropTech

Johnny Morris(Founder)in

Co-investorsAnthemis VentureLove VenturesMMC VenturesPrudenceTwin Path VenturesAFG Partners+2 more

Maeve is an AI assistant for fashion retailers that analyzes product data from multiple sources—including Shopify, PLM systems, reviews, and customer service tools—to optimize decisions around pricing, sizing, returns, and range planning.

AI & Machine LearningRetail TechLondon, GB

Phoebe Gormley(CEO)in

Co-investorsEntrepreneur FirstSuperSeed

Male grooming and skincare brand.

Estonia-based platform making values-based sustainable investing simple and accessible.

Co-investorsNorrsken VC

iLoF operates a cloud-based library of optical fingerprints built with photonics and AI, offering a non-invasive, blood-based screening test that stratifies patients for clinical trials.

AI & Machine LearningBiotechDigital HealthLondon, GB

Co-investorsFaberLince CapitalLunar Ventures

Insurtech building fit-for-purpose insurance products for drivers, freelancers and consultants.

Jude manufactures CoreCTRL, a dietary supplement formulated to support bladder health through targeted botanical ingredients, probiotics, and vitamins for daily wellness.

ConsumerDirect to ConsumerFemTechWellness & Fitness

Co-investorsEka VenturesJoyance PartnersOnstageSamos Investments

Developing a therapeutic product to mitigate neurological diseases such as migraines and brain aging.

Lemrock provides e-commerce integrations that deploy across the open web and search LLMs, connecting a network of onboarded merchants.

AdTechAI & Machine LearningE-commerceMarketing TechParis, FR

Roxane Laigle(CEO)inClément Nguyen(CTO)inSasha Collin(CPO)in

Co-investorsAgoranovEntrepreneur FirstSonorcapTranspose Platform ManagementGalion.exe

lu.ma is a platform for creating event pages, inviting attendees, and selling tickets for events.

Marketplaces

Dan Liu(Founder)Victor Pontis(Founder)in

Co-investorsAir Street CapitalAtelierBonfire VenturesExceptional CapitalIOSG VenturesLongJump Ventures+8 more

Startup on a mission to 'change the math' for caregiving.

SME financial services app providing loans, cash flow and invoice management tools.

OKKO Health develops smartphone and tablet apps that measure vision through games built on vision science, for use in clinical practice, scientific research, and drug and device R&D.

AI & Machine LearningDigital HealthHealthtechMedical Devices

Co-investorsAnglia Capital GroupDvH Ventures

Fertility care startup that raised a €4.8M seed round.

Advanced ManufacturingHickory, US

Ronald K. Boyd(Executive Officer, Director)Yost Blaine(Executive Officer)Mark K. Coffey(Executive Officer, Director)Preston Bryant(Executive Officer)

BoardDonna D. Ballenger(Director)D.D. Weaver(Director)

Co-investorsFounder CollectiveLocalGlobeNFDGTrue.

Prenostics develops a blood test to detect the earliest stages of cancer (stages 0-2), earlier than current methods, aiming to enable curative treatment.

BiotechDigital HealthHealthtech

Sarah Blagden(Founder & CSO)

Co-investorsPace Ventures

Re-Fresh Global pioneers textile waste recycling solutions using biotechnology to transform discarded textiles into new, sustainable resources.

BiotechCircular EconomyCleantechNew MaterialsBerlin, DE

Urte Claudia Zahn(CEO)Revital Nadiv(COP & Co-Founder)in

Co-investorsSerpentine VenturesIndieBio

Solution boosting employee financial wellbeing and reducing financial stress.

Shellworks develops VIVOMER, a compostable material made by collaborating with microorganisms that produce natural polymers, designed to perform like plastic but break down without leaving waste.

BiotechCircular EconomyClimate TechNew MaterialsLondon

Insiya Jafferjee(Co-founder)inAmir Afshar(Co-founder)inEdward Jones(Director)

BoardFelix Mounier(Director)

Co-investorsEnvestorsFounder CollectiveTrue.

SKY-I is a platform that aggregates fragmented space environmental data into a single system, offering 3D mapping of orbital conditions, satellite positions, and environmental hazards from VLEO to cislunar space.

Deep TechSaaSSpace TechWoking

Bianca Cefalo(Executive Officer, Director)

Co-investors7percent VenturesBlue Wire CapitalFemale FoundersOxford Investment Opportunity Network (OION)Seraphim Space

App bringing together music culture and mental health.

Your Juno is a financial education platform designed for women and non-binary people, offering tools and knowledge to help users build wealth and confidence in financial decision-making.

ConsumerEdTechFemTechFintechLondon, GB

Margot de Broglie(Co-founder)inAlexia de Broglie(Co-founder)in

Co-investorsDigital Currency GroupInreach VenturesMSM

Beauty/tech startup that raised £500K pre-seed funding.

Develops proprietary Z-ROS antimicrobial technology to transform infection prevention in medical devices.