
SJF Ventures
200 N Mangum St, Ste 203, Durham, NC, 27701, United States
Overview
SJF Ventures is a venture capital partnership with offices in Durham, New York and San Francisco. Through its investment funds, the firm provides equity financings from $1MM to $10MM, solo or in syndicates, to companies seeking growth capital. As a venture fund, SJF Ventures focuses on the resource efficiency, sustainability and technology-enhanced services sectors. Representative investment areas include efficiency and infrastructure, asset recovery including reuse and recycling, sustainable agriculture and food safety, health and wellness technology, education technology and digital media and marketing services. When assessing investment opportunities, SJF Ventures is highly selective in identifying teams, markets and business models that can achieve rapid sales, strong profitability, and premium exits. In addition, SJF looks to partner with entrepreneurs who are committed to positively impacting the world through the businesses that they are creating.
- Total investments
- 68
- Lead investments
- 31
- Investments · 12mo
- 6
- Active investors
- 10
Sector focus
- Financial Services
- Impact Investing
- Venture Capital
Investment portfolio
- DeweyLearn
Led · Series A · Jul 2026
DeweyLearn develops multimodal AI that ingests classroom audio, video, and learning data to generate actionable insights on instruction and learner performance. Its platform is applied across clinical and healthcare education, higher education, workforce learning, and K-12 in both physical and online settings. DeweyLearn says it can observe and evaluate real learning in action and return expert-level feedback at scale, and it reports grading more than 20,000 student homework submissions at Auguste Escoffier School of Culinary Arts to date. The company won the 2026 ASU+GSV Cup, selected from more than 3,000 companies as the top education technology startup. Founders Luyen Chou and Dirk Liebich bring backgrounds in EdTech leadership and applied AI, respectively. The recent Series A financing is intended to help the company scale its multimodal assessment capabilities.
- Lium
Participated · Seed · Jun 2026
Lium (formerly Astromind) builds an "agentic harness" platform that creates custom AI agents to restructure raw scientific and industrial datasets—such as satellite imagery, seismic surveys, electromagnetic spectrum data, and sparse X‑ray measurements—so large language models can reason over them. The company reports early traction with paying customers, including work with astrophysicists on exoplanet X‑ray analysis, processing terabytes of satellite and weather data for the North Carolina Institute for Climate Studies, and automating electromagnetic spectrum analysis for industrial partner nexGEN Inc. Lium says its agents improve over time as more queries hit a dataset, aiming to reduce LLM hallucinations when handling complex numerical inputs. The startup raised a $5.5M seed led by SJF Ventures to launch and scale this platform. No revenue figures were disclosed in the article.
- Zero Homes
Participated · Series A · Feb 2026
Zero Homes is a Denver-based technology company focused on streamlining residential electrification. Its mobile app lets homeowners create digital scans of their properties, receive virtual assessments, and obtain customized plans and instant quotes for heat pumps, insulation, EV chargers, and other energy-efficient upgrades. The platform then connects users with a curated network of contractors, functioning as an end-to-end digital marketplace. Zero Homes is actively installing projects in Colorado, Massachusetts, Minnesota, Illinois, and California. Management plans to enter additional markets in 2026 while broadening product offerings and deepening contractor coverage. The recent Series A financing brings the company’s known capital raised to $16.8 million, funding the next phase of product and geographic expansion.
- The Nuclear Company
Participated · Series A · Sep 2025
Nuclearn develops a domain-specific artificial intelligence platform designed for the highly regulated nuclear power sector. Trained on millions of industry documents and diagrams, the software understands nuclear terminology, operational context, regulatory obligations, and safety requirements, allowing it to automate tasks such as condition report analysis, outage planning, and regulatory paperwork. The system can be deployed on-premise, in hosted environments, or in secure government clouds, giving utilities flexibility without compromising security or compliance. Nuclearn’s solution is already in use at more than 65 reactors worldwide, helping plants mitigate looming workforce shortages as one-quarter of nuclear employees near retirement. By accelerating historically manual processes, the platform frees experts to focus on higher-value decision-making and preserves institutional knowledge. The company plans to use new capital to enhance its product, enter additional markets, and scale its engineering and nuclear operations teams amid growing global demand for carbon-free baseload power.
- Lōvu Health
Led · Series A · Sep 2025
Lōvu Health operates an AI-powered digital maternal health platform that personalizes care from conception through two years postpartum, combining remote patient monitoring, clinician dashboards, care navigation, and a curated marketplace of third-party vendors. The platform captures fetal heart rate, maternal blood pressure, weight, heart rate, and mental-health assessments in a dynamic dashboard that alerts clinicians to meaningful changes and reduces administrative burden. Lōvu reports clinical impact metrics including earlier identification of preeclampsia for 6% of mothers, detection of depression and anxiety in upwards of 30% of clinical populations, and identification of 57% of mothers on the platform with chronic hypertension. Its marketplace includes more than 50 specialty vendors—doula support, lactation, pelvic floor therapy, mental health and others—and can shorten time to mental-health appointments by up to four months. The company plans to use new funding to expand AI capabilities (including three planned augmentative agents), and to invest in automation, integrations, and headcount as it scales to meet clinician and patient demand. Lōvu positions itself as a care-extension to obstetricians to improve access and outcomes, particularly for underserved and Medicaid populations.