Custom web & app development company — India · USA · UK
We build the software your business runs on.
Custom web apps, Shopify and headless commerce, ERP and CRM systems, and AI automation — designed, built and supported by one engineering team of 13+. Fixed scope, weekly demos, and you own every line of code.
- 150+ projects delivered
- 13+ engineers
- 5.0 ★ on Google · 11 reviews
- DPIIT recognised startup
Teams that ship with Tech Inject
What we build
Eight things we do well, and nothing we don't.
Every engagement is scoped in writing, built in sprints you can watch, and handed over with documentation your team can maintain.
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AI automation
Workflows that read emails, route tickets, pull reports and move data between your tools. LLMs only where a rule can't do the job.
From USD 10,000 -
Shopify & headless commerce
Shopify Plus builds, Hydrogen storefronts and store migrations for D2C and B2B brands.
From USD 5,000 -
E-commerce ↔ ERP integration
Real-time inventory, orders and fulfilment between Shopify, WooCommerce or Magento and your ERP. No middleware subscription.
See how it works -
Custom ERP & CRM
Inventory, orders, production planning, HRMS and CRM built around how your business actually runs. You own the code.
Built for manufacturers -
Web applications
SvelteKit, Next.js and Node.js products with server rendering, clean data models and the SEO foundations done at launch.
Explore web development -
Mobile apps
Flutter and React Native apps that share one codebase across iOS and Android, wired to your backend.
Explore app development -
Websites & SEO for doctors
Regulator-aware practice websites and honest local SEO for consultants and private clinics in the UK and US.
UK · US pages -
Design & branding
Interfaces, identities and marketing sites designed in Figma and shipped by the same team that builds them.
Explore design
Who we are
A manufacturing family that built a software company.
Tech Inject is the sister concern of Castwise Manufacturing Company, a family foundry running since 1990. That is why we understand factories, inventory, dispatch and the spreadsheets that hold them together — and why our ERP and automation work starts from the shop floor, not the slide deck.
Founded in 2020 by Sumeet Singh (engineering; ex-Rivigo, ex-Go-MMT) and Srishti Aggarwal (design and operations), we are a DPIIT-recognised startup with 13+ engineers in Phagwara, Punjab, working with clients across India, the United States and the United Kingdom.
Meet the team →
How we work
Fixed scope. Weekly demos. No surprises.
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Scope
Week 1A short discovery call, then a written scope with a fixed price and timeline. No retainer to get a quote.
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Build in sprints
Weeks 2–8Weekly demos on a staging link you can open any time. Decisions are documented, not buried in chat.
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Launch
Cutover dayPhased go-live with data checks, redirects and monitoring. Source code, hosting and accounts stay in your name.
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Support
Ongoing30-day warranty on every delivery, then an optional retainer for new work. Replies within one business day.
Selected work
Products in production.
- Web Design
NotSoWhite
Discover a kaleidoscope of personalized art and bespoke creations at Not-So-White - where innovation and self-expression unite
Live View
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- Web Design
Ak Logistics
Best translation and messaging app designed to simplify international communications
Live View
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- Website
GoHomely
Best translation and messaging app designed to simplify international communications
Live View
- website
IJS IMMIGRATION
Best translation and messaging app designed to simplify international communications
Live View
- website
Dreamhome-jalandhar
Best translation and messaging app designed to simplify international communications
Live View
- website
GloProNet
Best translation and messaging app designed to simplify international communications
Live View
- website
NIFCA
Best translation and messaging app designed to simplify international communications
Live View
- website
Rineebindra
Best translation and messaging app designed to simplify international communications
Live View
Stack
Boring where it should be, modern where it matters.
We choose tools your next team can hire for. Every decision is written down and handed over with the code.
Client reviews
What clients say after launch.
Karan Kumar
CTO @ Amber Fund
We have been thoroughly impressed with the level of service and support provided. The prompt responses and efficient solutions have significantly improved our operational efficiency. Keep up the great work!
Mike Smith
Business Man
Your team has consistently delivered innovative solutions that have enhanced our technology infrastructure. The professionalism and expertise are evident in every project. We look forward to continued collaboration.
Riya Smily
CEO @ Tema Security
Partnering with you has been a game-changer for us. The reliability and efficiency of your services have minimized our downtime and boosted productivity. Your proactive approach to problem-solving is highly appreciated.
Oliver Kanjorva
Business Man
The exceptional technical expertise and dedication to excellence have been invaluable. The customized solutions you provide perfectly align with our business needs, and your ongoing support ensures our systems run smoothly.
Before you hire us
Straight answers to the questions we always get.
Something else on your mind? Ask us directly — we reply within one business day.
Custom web applications, mobile apps, Shopify and headless Shopify stores, e-commerce–ERP integrations, custom ERP and CRM systems, AI automation, and websites with local SEO for doctors and clinics. The same engineering team handles design, build and support.
E-commerce projects start from USD 5,000, headless Shopify from USD 15,000, and AI automation from USD 10,000 with optional retainers of USD 1,000–3,500 a month. Every project gets a fixed written quote after a short discovery call.
You do. Source code, hosting, domains, analytics and API credentials are set up in your name from day one. There is no proprietary platform and no lock-in.
Our engineering team is in India with four to five hours of daily overlap with US Eastern and UK working hours. You get a named project lead, weekly calls and a shared channel, plus US and UK sales contacts for first conversations.
Yes. Every delivery carries a 30-day warranty, and we offer maintenance retainers for ongoing work. You can reach us by phone, WhatsApp or email and we respond within one business day.
Tech Inject Global Solutions LLP is headquartered in Phagwara, Punjab, India, serving Punjab, Haryana, Chandigarh and Delhi NCR locally and clients across the United States, United Kingdom and Australia. It is a DPIIT-recognised startup founded in 2020.
Based in Punjab, working worldwide
Custom software development in Punjab & North India — and for teams in the US and UK.
We serve manufacturers, logistics companies and retailers across Jalandhar, Ludhiana, Amritsar, Phagwara and Delhi NCR, and e-commerce and service businesses in the United States and United Kingdom.
Headquarters
Urban Estate, Phagwara, Punjab, India
Service area: Punjab, Haryana, Chandigarh, Delhi NCR
Tell us what's slowing your business down.
We'll send a free written scope with a fixed price within one business day — no retainer, no obligation.