
1843 Capital
52 Mason St, Greenwich, CT, 06830, United States
Overview
1843 Capital is an early stage venture capital firm investing in companies that solve for the 100+ year healthspan
- Total investments
- 10
- Lead investments
- 0
- Investments · 12mo
- 0
- Active investors
- 3
Sector focus
- Venture Capital
Investment portfolio
- Rippl
Participated · Series A · Oct 2024
Rippl delivers a specialty virtual dementia care service that provides wrap-around support to people living with dementia and their caregivers. The company partners with the Alzheimer’s Association to combine clinical virtual care with the association’s helpline, education, and support resources. Rippl works with Medicare Advantage plans, ACOs, and health systems to deploy value-based care models and reduce unnecessary ED visits and hospitalizations. It was selected to participate in CMS’s GUIDE alternative payment model and has been rapidly onboarding patients and caregivers through that program. Rippl acquired Kinto, an AI-enabled dementia caregiver support platform, and plans to accelerate its AI and technology roadmap to improve scalability. The company recently closed a $23 million Series A to fund geographic expansion, new payment models, and tech enablement as it scales since serving its first patient in January 2023.
- Rippl
Participated · Series A · Oct 2024
Rippl provides virtual dementia care and wrap‑around support combining clinical teams, care navigation, and technology‑enabled services. The company has partnered with the Alzheimer’s Association to integrate Rippl’s model with the association’s 24/7 helpline, education, and support services, serving Washington, Texas, Illinois, and Missouri. In April Rippl acquired Kinto, an AI‑enabled dementia caregiver support platform, and plans to accelerate AI and technology adoption to enhance scalability and caregiver support. Rippl is pursuing expanded geographic coverage over the next four years, naming California, Florida, and Arizona as target states. The company is shifting toward value‑based payment models through partnerships with Medicare Advantage plans, ACOs, and other payors, and its Dementia Care Navigation Service was selected to participate in CMS’s GUIDE model. Rippl began serving its first patient in January 2023 and recently closed a $23 million Series A to fund these strategic priorities. Rippl is a mental health company focused on caring for seniors with dementia and other neurocognitive conditions, offering 24/7 personalized support by phone, online, and in patients' living rooms. The company provides clinicians with a new platform and a compensation, benefits, and equity package intended to empower delivery of personalized care to seniors and families. Rippl plans to hire and train clinicians, build technology, and open a Washington state-based clinical support center to launch pilot networks in two regions, beginning in Seattle. It is working with clinical teaching institutions to design a Rippl Academy focused on upskilling staff and recruiting more clinicians. Financially, Rippl raised $32M in Seed funding led by ARCH Venture Partners and General Catalyst with participation from GV, F-Prime Capital, and Mass General Brigham Ventures. The company is led by CEO and Co-Founder Kris Engskov and a diverse leadership team with experience in consumer products and health care.
- Midi Health
Participated · Series B · Apr 2024
Headquartered in Palo Alto, Midi Health operates a nationwide virtual clinic that addresses gaps in women’s healthcare from perimenopause and menopause to broader chronic and preventive needs. The company’s proprietary AI engine analyzes patient charts to personalize diagnosis, streamline scheduling and documentation, and continuously refine clinical protocols using one of the industry’s largest women’s-health datasets. Midi currently has insurance contracts that give more than 45 million U.S. women in-network access to its services, and over 25,000 patients seek care on the platform each week. Outcomes data show a 28-percentage-point increase in breast-cancer screening adherence, an 11-point rise in colorectal screening adherence, and up to a 13 percent reduction in total cost of care, alongside clinically significant reductions in A1c and LDL levels. The business complements its clinical model with an expanding specialist roster covering OB-GYN, cardiology, endocrinology, mood disorders, dermatology, longevity, and more. Recent executive hires from Tesla, Google, Meta, Lyft, and Omada Health signal a push to scale operations and brand awareness. Following its latest financing, Midi is valued at more than $1 billion and plans to broaden its AI capabilities and extend comprehensive women’s care across every life stage.
- Enveil
Participated · Series B · Apr 2022
Enveil commercializes homomorphic encryption and secure multiparty computation to let organizations analyze and use encrypted data without decrypting it. Its product suite, marketed under the ZeroReveal brand, includes an encrypted search tool and a machine-learning product for collaborative and federated ML in a secure, private manner. The company says its IP enables complex business functionality by embedding addition and multiplication into encryption workflows. Enveil has seen a 300% increase in revenue since its February 2020 Series A and counts several strategic investors as paying customers. The startup plans to use new funding to expand its product lineup and to invest in sales and marketing to grow its customer base. The CEO is Ellison Anne Williams. Enveil builds an API-based homomorphic encryption product called ZeroReveal that enables computation on encrypted data without requiring changes to existing compute environments. ZeroReveal is a two-party setup with a client app inside an enterprise network and a server app deployed where data resides; together they act as a point-to-point proxy to protect analytics and interactions. The product complements data-at-rest and data-in-transit encryption, and the company has filed 13 patent applications related to its approach. Enveil has kept a low profile for roughly three years and was founded by Ellison Anne Williams, a former National Security Agency senior researcher and former senior scientist at the Johns Hopkins University Applied Physics Laboratory. With the new funding, Enveil plans to expand its product line, grow customer support and sales teams, and cultivate traction in both commercial and government markets. Financially, the company announced a $10 million Series A that brings total funding to approximately $15 million. Enveil develops a Never Decrypt computation capability that lets enterprises perform search and analytics without exposing data during processing, protecting Data in Use. Its platform enables secure operations on both encrypted and unencrypted data in the cloud, on‑premises, or hybrid environments. The company cites traction with customers in the financial industry and use cases such as secure data monetization, crown‑jewel protection, secure cloud migration, and GDPR compliance. Enveil plans to use the new capital to enhance its platform, expand operations, hire growth‑oriented roles, and execute a go‑to‑market strategy to increase availability for commercial and government enterprises worldwide. The company was founded by U.S. Intelligence Community alumni and highlights prior recognition, including winning the 2017 RSA Conference Innovation Sandbox.
- Corsha
Participated · Series A · Apr 2022
Corsha offers a patented Machine Identity Provider (mIDP) that provides strong cryptographic machine identities, dynamic authentication and authorization, and automated lifecycle management for millions of machine identities. Its platform delivers continuous verification across cloud, edge, air-gapped, hybrid, and industrial environments to enable zero-trust for machine-to-machine connections. The company emphasizes securing robotics, automation, and physical AI as operational systems become increasingly autonomous and interconnected. Corsha positions its mIDP as a foundational trust layer for manufacturing APIs, protocols, and industrial autonomous systems. The recent financing will be used to accelerate scaling of the platform and expand protections across robotics and industrial autonomous systems. Corsha is backed by multiple venture firms that participated in the disclosed round. Corsha is the first and only Machine Identity Provider (mIDP) built to secure communication across operational systems and critical infrastructure. The company uses multi-factor authentication and patented identity technology to protect machine-to-machine communications and bring zero trust to operational technology environments. Corsha leverages advanced behavioral analytics to detect unusual patterns and block adversaries from accessing OT, including within defense manufacturing and other critical infrastructure. The company works with partners such as the U.S. Air Force and focuses on non-human identity for mission systems. With Booz Allen's investment, Corsha will expand its R&D lab, scale its AI and machine-learning capabilities, and advance operations in critical manufacturing environments. Corsha provides an automated multi-factor authentication solution designed specifically for machine-to-machine API traffic. Its system generates one-time-use MFA credentials from a machine's dynamic identity and verifies them against a cryptographically verifiable distributed ledger, requiring a fresh credential for each API call to enable zero-trust access. The company describes its patented approach as "MFA++" and says it avoids a central secret repository by originating MFA on the machine itself. Founded in 2018 and based in Washington, D.C., Corsha secured the U.S. Air Force as its first customer in 2020, which the company cites as a strong validation. The startup has a team of about 10 employees and is on a rapid hiring spree. After closing a $12 million Series A, Corsha plans to expand its go-to-market efforts in the enterprise. Corsha develops an API security platform that provides enterprises security, visibility, and control for data in motion as it moves through APIs, offering a dynamic, fully automated multi-factor authentication (MFA) solution for API traffic with no human user involved. The platform leverages a private, permissioned distributed ledger network (DLN) to build dynamic machine identities and secure machine-to-machine communication. Corsha's solution is Kubernetes- and cloud-native, highly scalable, platform-agnostic, and available either as a cloud-managed service or for full self-hosting. The company announced it will use NSF SBIR Phase I grant funding to advance its DLN technology to achieve greater scale and performance. The article notes the SBIR Phase I program awards up to $256,000 and makes recipients eligible to apply for Phase II funding (up to $1,000,000) and potential additional matching funds (up to $500,000) with qualifying third-party investment or sales.