HENDOI
The aerodynamics team behind the software, not just the developers behind it
Custom solvers, CAD kernels, and HFOIL — engineering software built by an aeronautical engineer, for the people who still have to sign off on the numbers.
A flight-sciences software firm — not a general CAE vendor
We do not sell marine, civil, automotive-platform, or catch-all industrial suites. Every solver, CAD kernel, and HFOIL workflow we ship is built for aircraft, UAV/eVTOL, rotorcraft, and propulsion programmes — so you can trust the stack matches how aero engineers decide.
The problem we exist to solve
Neither rented suites nor guesswork is good enough
Most engineering teams face the same trade-off: rent a massive, general-purpose simulation suite that costs more than your annual R&D budget and does 40 things you'll never use — or settle for spreadsheets, outdated freeware, and guesswork because nothing affordable fits your exact problem.
Neither option is good enough when the output feeds directly into a design decision — a wing profile, a rotor blade, a UAV's flight envelope.
We build the middle path: software scoped tightly to your actual engineering problem, built by someone who has sat on the other side of that decision.
Mission
Engineering software with an aeronautical heart
HENDOI TECHNOLOGIES PRIVATE LIMITED builds focused desktop tools and custom engineering software — not bloated platforms retrofitted for aerospace. Students, researchers, and practicing engineers get real airfoil, wing, and solver capability, built specifically for the problem in front of them, without paying for or waiting on a stack that was never designed around aero decision-making in the first place.
What we build
Three lanes. One engineering standard: it has to be right, or it doesn't ship.
Custom Solvers
CFD, structural FEA, thermal, aeroelastic, propulsion, and mission-level solvers — scoped and validated against your programme’s actual requirements, not adapted from a generic template.
CAD Kernels
2D and 3D geometry cores for teams that need to own their BREP, NURBS, or sketch engine outright — not license someone else’s black box and hope it never breaks your roadmap.
HFOIL Desktop
Aerospace aircraft geometry CAD for Windows — templates, parametric airframe, assembly, and STEP export for students, labs, and early design teams.
HENSTRUCT Desktop
Aerospace structural FEA — static, dynamics, buckling, composites, fatigue, thermo-structural, aeroelasticity, and margins for flight programmes.
Why aeronautical engineers choose to build with us
Domain-first software for people who sign the numbers
Domain-first, not code-first
Most software vendors hire engineers to implement physics someone else specified. We start from the physics. Our founder has an aeronautical engineering degree and years of hands-on solver development — the difference shows up in the edge cases, the assumptions baked into a model, and whether the tool actually matches how aero engineers think.
Built for your exact problem, not a market segment
We don’t sell a fixed product and hope it fits. We scope the solver, kernel, or tool to your specific programme — your geometry, your boundary conditions, your validation data.
Small team, fast iteration
No six-month sales cycles, no committee sign-off, no bloated onboarding. You talk directly to the person who will build your solution.
Transparent about what’s proven vs. in development
We don’t oversell. If a capability is production-ready, we say so. If it’s on the roadmap, we say that too — and we’ll tell you exactly when it’ll be ready for your use case.
Leadership

Sundarapandi Muthupandi
Director & Founder
B.E. in Aeronautical Engineering, with 7 years building engineering software across aerodynamics, CAD, and simulation domains. Sundarapandi founded Hendoi to close a gap he experienced directly as a practicing engineer: the absence of aeronautical-grade desktop tools built by someone who has actually done the engineering — not just the coding around it. Hendoi now serves industry, research, and academic teams with that same standard.
Who we build for
Industry, labs, academies, and flight startups
- OEMs and manufacturers needing custom solver capability scoped to a specific product line
- Research labs needing validated, explainable tools — not black-box outputs
- Academic programmes needing affordable aircraft geometry CAD and suite handoff for teaching
- UAV and eVTOL startups needing flight dynamics, propeller aerodynamics, and mission-planning tools without enterprise CAE overhead
Get in touch
Contact us
HENDOI TECHNOLOGIES PRIVATE LIMITED
No.19, Hanumar Koil Street,Station Road, West Mambalam,Chennai City,India - 600033support@hendoi.com+91-9677261485
GSTIN: 33AAGCH6765E1ZK
CIN: U62099TN2023PTC158630
Have a use case in mind?
Share it — we'll return honest architecture options, feasibility notes, and a realistic timeline. No sales fluff, no scope creep.