Innovate. Create. Succeed.
Calc is computer science & data science company that delivers cutting-edge solutions to businesses. We provide high-quality services such as web development, business app development, and statistical analysis.
Focus & Quality
Innovation & Creativity
Collaboration
About Us
At Calc, we are passionate about creating innovative and creative solutions that help our clients succeed. We believe that the right software can transform businesses, and we work tirelessly to deliver high-quality services that meet our clients' needs.
Calc is a computer & data science company. We are located in Connecticut, close to Yale University. Calc was founded by Dr. Yisong Geng. We proudly serve both big and small businesses of various industries. All our work is done locally in USA. We never ship your data overseas. Our experts have 20 years of experience. Our service quality is as high as you can find in USA, while our rate is only a small fraction of big consulting firm rates. Talk with us about any data needs. Reference is available upon request. Our aim is to be your long-term computer science partner.
Our Services
We offer a range of services that help businesses succeed in the digital space. Our team of experts is committed to delivering high-quality solutions that meet our clients' needs.
Application Development
Web, mobile, custom software, Microsoft Office, Google WorkSpace, and robotics
Quantitative Consulting
Economics, econometrics, prediction & forecasting, optimization.
Our Process
At Calc, we follow a rigorous process to ensure that every product we develop meets our clients' needs. From ideation to launch, we work closely with our clients to deliver high-quality solutions that exceed their expectations.
Ideation & Planning
Design & Development
Testing & Launch
Our Clients
At Calc, we have had the pleasure of working with some of the most successful businesses in the world. We are proud to have helped these businesses succeed in the digital space.
Non-profit organizations
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The State of Alaska
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Duke University
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University of California Berkeley
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Oregon State University
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California State University Northridge
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University of Texas Southwestern
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Grand Valley State University
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A church in Indiana
Businesses
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Microsoft
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Disney
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Anheuser-Busch
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Multiple biomed companies
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A real estate assessment agency in Colorado
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A HVAC company in Oklahoma
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A consulting firm in Washington DC
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A logistic company in Washington
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A trucking company in New Jersey
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An accounting firm in New York City
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Multiple factories in Texas
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A military housing agency
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A bank in Canada
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A certification agency in Ireland
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An insurance company in Bermuda
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And many more
What Our Clients Say
Finding Calc LLC is like hitting the jackpot. Very professional, always responsive, and excellent quality. Saves me and my clients hours of work.
Alan G.
Anytime you deal with someone online who you've never before met you wonder about honesty, reliability, and credibility. My expereince was entirely positive. I would not hesitate to use Yisong's services again.
Fred D.
Calc LLC really came through. I got over my head in a VBA to SQL code and Calc LLC helped me out. Within 24 hours my Userform was up and going. They take the time to understand your issue and come back with solutions that work. Amazing work and didn't break the bank. I will definitely use them again when I find myself in another Excel bind.
James B
Our Pricing
For service projects, we typically charge by the hours spent on project. We have the best price in market.
Many small projects can be completed and delivered within 1 business day.
Five reasons you should use Calc
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High quality: Our service quality is as high as you can find in USA. Check our perfect client reviews!
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Affordable rate: Our rate is only a small fraction of what large consulting firms charges.
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Fast turnaround: Large projects are usually completed within 2-3 days, while small ones are typically completed within several hours
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Good communication: We communicate intensively with our clients through video meetings, phone calls, text messages, or emails. Smooth communication is the key to solve problems correctly and efficiently
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Data security: We never ship your data overseas. All our work is done here in USA.
Business Hours
Monday through Friday: 9 am to 6 pm, US Eastern Time
Saturday & Sunday: By appointment only
US holidays: We are closed on New Year's Day, MLK Day, Memorial Day, July 4th, Labor Day, Thanksgiving, and Christmas.