Accuracy isn't Optional
We provide engineering-grade estimation accuracy you can rely on.
Costimator gives civil engineers structured, traceable, calculation-ready data for every estimate, rate analysis, justification, and report — no broken spreadsheets, no manual formula tracing, no guesswork.
CPWD DSR/DAR Indian Railways USSOR Estimation Justification NS Items Excel Reports
The problem we solve
Accurate estimates, justifications, and rate analyses are hard to produce quickly.
Engineers wrestle SoR PDFs, hand-copied rates, Excel formulas, and nested rate analysis to reach a submission. One wrong formula or missed dependency changes the entire estimate.
Our mission
Make SoR-based estimation fast, reliable, and audit-friendly.
We turn complex estimation workflows into structured software — so engineers spend less time fighting spreadsheets and more time on the decisions that matter.
Who we are
We are engineers obsessed with automating and simplifying estimation & justification.
Costimator is built by engineers who understand how civil engineering estimation actually works in the field — not just how it looks in a clean spreadsheet. The product began inside real CPWD workflows: DSR items, DAR calculations, tender justification, market-rate changes, and the pressure of getting everything right before submission.
We build around one belief:
Estimation software should follow the way engineers actually think.
Costimator isn't a replacement for engineering judgment. It removes the repetitive manual work — so that judgment can be applied where it matters.
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.
We are transforming civil engineering estimation by making it structured, fast, and reliable.
- From scattered data
- From PDF searching
- From fragile Excel formulas
- From manual market-rate tracing
- From days of formatting
- to complete estimates.
- to instant item discovery.
- to dependency-based calculation.
- to automatic re-analysis.
- to submission-ready Excel.
We bring the clarity, speed, and calculation discipline engineers need to estimate, justify, and bid with confidence.
A word from our founder
For years, I worked inside the same estimation workflows Costimator now solves. As a CPWD engineer, I watched how much time gets lost to repetitive manual work — searching DSR PDFs, copying item codes, rebuilding formulas in Excel, preparing rate analyses, justifying tenders against market rates. The work mattered. The workflow around it was unnecessarily painful.
I first tried solving it in Excel — sheets with lookups, cascading calculations, automation. They worked, but only as long as I controlled every formula and every change. That was when I realised this wasn't a spreadsheet problem. It was a software problem.
Costimator is the estimation platform I wished I had on real projects, real deadlines, and real tender justifications. My goal is simple: engineers shouldn't have to fight their tools before they can do their work.
Kushal Singh
Ex-IES Officer (2014 batch) · Ex-CPWD, MoHUA · Founder, Costimator
Estimate faster, justify smarter, bid with confidence.
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