Operator Partners
139 Reade Street Apt. 5A, New York, NY, 10013, United States
Overview
Operator Partners invests in early-stage technology companies and founders. The firm was founded in 2020 and is headquartered in New York, United States.
- Total investments
- 89
- Lead investments
- 1
- Investments · 12mo
- 11
- Active investors
- 6
Sector focus
- Business Development
- Finance
- Financial Services
Investment portfolio
- FSH Technologies
Participated · Series A · Aug 2026
FSH Technologies develops end-to-end software for public-sector clients, targeting municipalities, school districts, and state agencies to modernize legacy government systems. The company emphasizes solving the whole procurement and change-management problem rather than only delivering software, and it avoids billable consulting hours and traditional sales or consulting teams—describing its staff as builders. FSH frequently competes with large consulting firms such as Accenture for government contracts and has reported winning bids against them. The founder and CEO, Lilly Chen, is a former Meta engineer who started the company after leaving Meta; reporting notes her personal background and leadership but does not specify the company's founding year. Financially, FSH has raised $25 million in total funding, including a $5 million seed and a $20 million Series A led by Lachy Groom. The articles do not provide revenue, user, or other operating metrics.
- Harmony
Participated · Seed · Jul 2026
Harmony provides AI-driven automation that operates inside Slack and Microsoft Teams to handle workplace requests such as onboarding, software access, and password resets. The platform integrates with more than 100 applications and can tailor actions using an employee’s role and permissions, while allowing companies to require human approval before AI takes action. Harmony launched last year and counts customers including workflow automation company n8n, investing app eToro, security startup Cyera, and fashion retailer Kith. The company has 60 employees, with about two-thirds in Israel and the rest in New York. After raising a $34 million seed round led by Lightspeed, Harmony plans to expand its engineering, product, and sales teams to scale its offering.
- Sandstone
Participated · Series A · Jun 2026
Sandstone focuses on the needs of in-house legal departments at small and mid-sized businesses, offering a platform that aggregates work from intake channels like Slack, email, and Jira and uses AI to route and triage requests. Users can build custom workflows on the platform to execute tasks such as drafting, reviewing, and providing legal analysis. The company's approach emphasizes relationship management and workflow automation tailored to the specific demands of in-house legal work rather than general legal reasoning systems. Sandstone positions itself as a vertical, specialized AI provider for legal teams and faces competition from both legal-focused startups and larger AI labs expanding into legal tools. The company recently raised a $10 million seed round in January and followed with a $30 million Series A led by Lightspeed Venture Partners, bringing disclosed funding to $40 million.
- Ilant Health
Participated · Series A · Jun 2026
Ilant Health provides end-to-end, clinician-led obesity and cardiometabolic care that combines behavioral therapy, medication (GLP-1 and non-GLP-1), and surgical options within a precision-medicine model that continuously adapts treatment to individual response. The company works directly with employers and health plans to deliver measurable clinical and financial outcomes and to manage both treatment costs and total cost of care. Early results reported by Ilant show members achieve an average 15% weight loss and an average of two additional mentally healthy days per month. Ilant emphasizes data- and analytics-driven care pathways, clinician oversight, and transparent contracting for medications; it has announced direct contracting and transparent pricing through Lilly’s Employer Connect program and is working with Novo Nordisk. The company presents itself as an AI-enabled healthcare services provider that aims to move obesity care from disconnected interventions to a continuous, outcomes-focused service. Ilant has raised over $22 million to date following the $15 million Series A and is partnering with employers and payers to scale its model.
- Nourish
Participated · Series C · May 2026
Nourish operates an AI-native virtual metabolic clinic that pairs more than 10,000 registered dietitians with AI health agents to deliver personalized, insurance-covered care. The company layers lab testing, GLP-1 prescribing and medication management, and virtual medical care into its nutrition-first model to drive sustained behavior change. Nourish reports best-in-class clinical outcomes — including average 8% weight loss, a 1.3 point A1C reduction, a 31 point LDL cholesterol reduction, and a 23 point systolic blood pressure reduction — and estimates over $2,000 in annual cost savings per patient for health plans. Its patient-facing AI agent has hundreds of thousands of monthly active users and its provider-facing AI copilots surface real-time insights and automate administrative work. Nourish has completed millions of appointments, has more than tripled year-over-year, partners with hundreds of leading health plans to cover over 200 million lives, and receives referrals from tens of thousands of providers across more than 250 health systems. The company integrates responsible GLP-1 prescribing into its care model while emphasizing nutrition and behavior support to sustain long-term outcomes.