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Twine Ventures

San Francisco, California · Invests in US · Website

Check size

$500K-$1.5M

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Pre-SeedSeedSeries AAI & Machine LearningDeveloper ToolsData & AnalyticsFintechHealthcare & BiotechClimate & EnergyHealthcare & Digital HealthClimate & Clean EnergyFintech & PaymentsDeveloper Tools & Infrastructure

Thesis

Healthcare systems and climate-impacted industries are in generational transformation. We partner with mission-driven founders building enabling technologies—data, AI, software infrastructure—to accelerate this transition. Purpose and profit are inextricably linked.

Likely not a fit for

Non-mission-driven companies, hardware-only plays, companies not aligned with health or climate impact

How they invest

Lead or follow
Usually leads
Typical decision
~2 weeks
Warm intro
Not required
Involvement
Advisor
Fund status
Actively deploying
Assets under mgmt
$25M
Decision process
Partnership vote

Partners & team

2 contacts on file

LS

Leshika Samarasinghe

Founder & Managing Partner · Primary contact

EY

Ethan Yeh, PhD

Managing Partner

Portfolio

Apella TechnologyHealthcare Digital

Apella Technology Inc. provides a platform that may involve the collection and management of protected health information, focusing on compliance with HIPAA regulations.

Alchemy HealthHealthcare Digital

Alchemy Health builds and operates in-house pharmacies for safety net clinics, providing the physical, clinical, and digital infrastructure needed to operate and grow a best-in-class entity-owned in-house 340B pharmacy program.

WaymarkHealthcare Digital

Waymark connects individuals receiving Medicaid with local care teams, including community health workers, therapists, and pharmacists, to provide comprehensive support for physical and mental health.

Waltz HealthHealthcare Digital

Waltz Health is creating a smarter pharmaceutical marketplace that empowers consumers to find the best prescription prices and improve care while creating savings.

RupahealthHealthcare Digital

Rupa Health is a platform for ordering lab tests, partnering with over 30 labs to simplify the testing process. It offers a single dashboard for managing lab orders and provides support through a Patient Portal, focusing on root-cause medicine.

Alpha GridEnterprise Software

Alpha Grid is the AI platform that turns volatile EV charging revenue into predictable, optimized, bankable cash flows, providing real-time competitive intelligence for EV charging networks.

VerseEnterprise Software

Verse delivers energy cost intelligence for the enterprise. Through our AI-powered platform, Aria, we help energy, finance, and operations teams plan, procure, and control energy cost, risk, and emissions—all in one unified platform.

Plover ParametricsInsurance

Plover is a venture-backed specialty brokerage focused on parametric insurance solutions for natural catastrophes, weather-related risks, and other novel risks, leveraging technology to enhance service delivery.

Zipline AIEnterprise Software

Zipline AI is a modern infrastructure-as-code platform that simplifies building and deploying machine learning pipelines.

RowspaceEnterprise Software

Rowspace is focused on leveraging AI technologies to enhance data processing and analytics.

AldenHealthcare Digital

Alden is an AI-powered communications agent built to simplify your practice's administrative workflows. It integrates seamlessly with existing systems to handle inbound and outbound communications, prioritize messages, and ensure vital information reaches the right team members around the clock.

Colla HealthHealthcare Digital

Colla Health provides cancer-specific mental health services, focusing on the emotional, behavioral, and psychosocial needs of cancer patients. Their offerings include individual therapy, medication management, and remote crisis intervention, all designed to integrate seamlessly with oncology practices.

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Research briefRead more
Twine Ventures Research Investment Thesis Twine Ventures partners with early-stage founders for whom purpose and profit are inextricably linked. The firm believes that healthcare systems and climate-impacted industries are in the midst of generational transformation, and they invest in audacious teams building the enabling technologies—data, AI, and software infrastructure—that will accelerate this critical transition. They position themselves as first-check investors with a nimble and targeted approach to supporting mission-driven founders from the very beginning of their journey. Fund Overview Twine Ventures Fund I is a $25M seed fund launched in 2022 by Leshika Samarasinghe and Ethan Yeh. The fund writes initial checks of $500K-$750K and focuses on the intersection of human health and planetary health. The firm has deployed across a diverse portfolio spanning healthcare, climate, fintech, and emerging technologies. Stage Focus and Check Size Twine Ventures is a pure seed investor: Primary focus : Seed stage ($500K-$750K first checks) Typical range : $500K-$1.5M per company Approach : First-check investor, leads or co-leads rounds Fund size : $25M (Fund I) Investment Sectors and Focus Areas The firm invests across three primary categories with both human and planetary health components: Human Health: Surgical outcomes improvement (Apella Technology) Pharmacy services and access (Alchemy Health) Home care and workforce coordination (Alden) Behavioral health (Colla Health, Oasys) Medical financing and access (Endeavor Health, Waltz Health) Preventive and root-cause medicine (Rupa Health) Precision medicine (Teiko Bio) Medicaid community care (Waymark) Planetary Health (Climate & Sustainability): EV charging infrastructure (Alpha Grid) Clean energy (Verse) Climate resilience and parametric insurance (Plover Parametrics) Environmental data collection (Nectar Climate) Industrial automation (Frontier Machines) Electrification services (Stealth Climatetech) Supply chain sustainability (Covalent Technologies) Agricultural compliance (Compass) Fintech & Data Infrastructure: Payments integrity (Alaffia) Financial access and credit (Ava Finance) AI-driven financial intelligence (Rowspace) Data analytics and collaboration (Stealth Data, Zipline AI) Credit access for underbanked (Stealth Fintech) Trade sales tools (Airship) Legacy industry staffing solutions (Pikl) Portfolio and Recent Activity Twine Ventures has built a diverse portfolio of 35+ companies spanning early-stage development: Notable Portfolio Companies: Apella Technology - Surgical outcomes through AI analytics (Series A deployed) Alchemy Health - Pharmacy services for vulnerable populations ($31M Series B, Feb 2026) Waymark - Community-based Medicaid care ($42M Series B, Oct 2023) Waltz Health - Prescription drug affordability (acquired) Rupa Health - Specialty lab testing for root-cause medicine Alpha Grid - EV charging infrastructure scaling Verse - Clean power generation Plover Parametrics - Climate resilience insurance (acquired Oct 2025) Zipline AI - AI/ML data platform Rowspace - AI financial intelligence Recent Activity (2024-2025): Actively deploying Fund I capital across healthcare and climate sectors Demonstrating strong follow-on investment capability (Alchemy Series B participation, Alaffia Series B participation) Producing material exits (Waltz Health acquisition, Plover Parametrics acquisition) Maintaining early-stage focus with newest investments in Pre-seed and Seed stages Team and Operator Background Leshika Samarasinghe - Founder & Managing Partner Former early product team member at Google Founding member of ARPA-E (Advanced Research Projects Agency for Energy) Managing Partner at The Production Board (venture studio founding health and climate companies) Deep expertise in GTM strategy and Series A fundraising Sri Lankan immigrant background, first-generation founder-investor Ethan Yeh, PhD - Managing Partner Former Head of Data Science at Stripe Former Director of Data Science at Twitter Health economist background (World Bank) Experience spanning technology startups, policy, government, and academic research Supported teams from inception to IPO as operator and investor This strong operator background—combining deep domain expertise in health (ARPA-E, World Bank), technology (Google, Stripe, Twitter), and entrepreneurship (The Production Board)—enables Twine to provide substantive support beyond capital. Decision Process and Support Model Decision style : Partnership-driven with hands-on involvement from both partners Typical involvement : Active operational support, particularly on GTM strategy and fundraising Timeline : Responsive and nimble as first-check investors Value add : Technical operational support, policy network (ARPA-E), technology expertise (Stripe, Google), healthcare domain knowledge Founder Profile Preferences Twine gravitates toward mission-driven founders building at the intersection of purpose and profit: Founders committed to solving material healthcare or climate challenges Technical teams with domain expertise (especially in healthcare or climate) Founders willing to be hands-on partners with investors Early-stage teams requiring operational support and strategic guidance Geographic Focus Primarily US-based, with concentration in: San Francisco Bay Area New York Other major US tech/health hubs Competitive Landscape and Co-Investors Common co-investors in Twine portfolio include: Pathlight Ventures Better Ventures QED Investors (Airship round) Greylock Partners FirstMark Capital Tau Ventures Sure Ventures This indicates positioning as a respected early-stage investor with strong relationships among quality seed-stage VCs. Fund Status and Outlook Status : Actively deploying from Fund I ($25M) Deployment pace : Consistent investment activity throughout 2024-2025 Exit performance : Demonstrated ability to generate material exits (Waltz, Plover) Follow-on capability : Strong reserves for follow-on investments in successful companies The firm appears well-positioned to close Fund II in the near-term, given strong performance from Fund I, demonstrated exits, and mission-aligned deployment across growth-stage checkpoints.

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