About Us
Calc LLC was founded by Dr. Yisong Geng (LinkedIn profile) in 2019. We are located in Wilton CT, close to Yale University. We are a small, dedicated business passionate about delivering innovative solutions that help our clients work smarter, make better decisions, and embrace the future of technology.
Our team blends technical expertise with a deep understanding of business needs, ensuring every project is tailored to deliver measurable value. We pride ourselves on building long-term partnerships and providing exceptional service.
Our Core Service Lines
Clinical Outcome Research
Evidence-driven studies that evaluate the real-world impact of healthcare interventions, measure patient-centered outcomes, and guide clinical and policy decisions.
Learn MoreBiostatistical Consulting
Expert statistical guidance for biomedical and clinical research, from study design to data analysis, ensuring accurate, reliable, and publication-ready results
Learn MoreEpidemiology Research
Data-driven studies that investigate the patterns, causes, and impacts of health and disease in populations to inform prevention strategies and public health policy.
Learn MoreStatistical Consulting
Rigorous study design, robust analysis, and clear reporting that turns data into confident decisions.
Learn MoreEconomic Analysis
Data-driven insights into markets, industries, and policies — helping you make informed, strategic decisions.
Learn MoreOur Values
Innovation
We embrace new technologies and creative thinking to deliver forward-looking solutions.
Collaboration
We work closely with clients to ensure our solutions align perfectly with their goals.
Excellence
We are committed to delivering high-quality work that exceeds expectations.
Hours
Monday to Friday
9 am to 6 pm, US Eastern Time
Saturday & Sunday
By appointment only
Holidays
We are closed on New Year's Day, MLK Day, Memorial Day, July 4th, Labor Day, Thanksgiving, and Christmas
Let's Build Something Great Together
Whether you need a custom application, data-driven insights, or robotics innovation, we're here to help.
Contact Us