The problem we solve
Accurate estimates, justifications and rate analyses are hard to produce quickly.
About Costimator
Why I left the IES to build Costimator.
For years, I did the estimating Costimator now handles. As an Executive Engineer at CPWD, I watched how much time went into work that had nothing to do with engineering judgment — searching DSR PDFs, copying item codes, rebuilding Excel formulas, preparing rate analyses and justifying tenders against market rates.
I tried to fix it in Excel first. The sheets worked, but only while I controlled every formula. That's when I realised this wasn't a spreadsheet problem. It was a software problem.
So I built a tool for my own estimates, and colleagues started using it too. By 2025 the need was clear enough that I left the Indian Engineering Services to build Costimator full-time. Hundreds of engineers have used it since.
Costimator doesn't replace engineering judgment. It takes away the repetitive work, so judgment goes where it matters.
Kushal Singh
Founder, Costimator
Ex-IES Officer (2014 batch) · Ex-CPWD, MoHUA
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Our mission
Make SoR-based estimation fast, reliable and audit-friendly.
Our values
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Accuracy isn't Optional
A small error in rates, quantities, margins, or dependencies can shift an entire project's value. Costimator is built on structured data and automated calculation, not fragile spreadsheet formulas.
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Solve the real workflow
We don't build features because they sound good. Every screen has to answer a practical question: does this cut manual work, reduce error, or make review easier?
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Speed without shortcuts
Fast estimation shouldn't mean approximate estimation. We automate the repetitive parts — lookup, rate analysis, dependency tracing, market-rate updates — while keeping the calculation logic clear.
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Trace everything
Good estimation isn't just the final number. It's being able to explain how that number was reached — every rate, quantity, assumption, and comparison, open to review.
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Build for engineers
Our users aren't just clicking buttons. They're responsible for submissions, approvals, tenders, and financial accuracy. The product has to respect that responsibility.
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Honest by default
We say what's live and what's coming, without inflating either. The numbers in a Costimator estimate should be as straight as the way we describe the product.
See whether it fits the way you estimate.
Try Costimator free for 14 days on the publication you work with. No card needed.