- Saigon11:46After hours
- Dublin04:46After hours
- Delaware23:46After hours
Your idea.Our execution.Shared success.
Hephaestus helps startups and businesses turn ideas into products people pay for. We test the idea, build the software or hardware, launch it and stay on to help it grow.

We take ideas all the way to market.
Some founders arrive with a rough idea, others with a product that has stalled. We pick it up from there and stay through validation, build, launch and growth.
Not sure which stage you're at? Tell us about it and we'll help you work out the next step.
Book a free callFrom silicon to software, under one roof.
Chips, circuit boards, firmware, cloud and apps, designed and built by one team. Nothing gets lost in the hand-off between suppliers.
Software
The part your customers touch: web and mobile apps, dashboards and the AI features inside them.
Hardware
Apps & AI
The part your customers touch: web and mobile apps, dashboards and the AI features inside them.
- Web & SaaS platforms
- iOS & Android apps
- AI features & agents
- Product & UX design
Tools & platforms
Building something with a chip, a screen or both? Talk it through with our engineers.
Talk to an engineerOur approach
Most agencies hand over the code and move on. We stay, and work on your business the way a co-founder would. We pair AI with decades of software and market experience to give your product the best possible chance of success.
01
Speed
Less time between the idea and the first customer.
02
AI-powered execution
Experienced people make the calls. AI speeds up the routine work.
03
Flexibility
Engagements shaped around your stage and your runway.
04
Shared success
We measure our work by your results, not our hours.
An agency bills you. A partner backs you.
Outsourcing firms get paid the same whether your product flies or flops. We'd rather have something riding on it.
Decades of experience, with modern tools.
Our people have spent decades building software and taking products to market. AI speeds up the routine parts of that work; experience decides what to build, who to sell it to and when to change course.

Sound calls
Faster delivery
Leaner budgets
For people with an idea and the nerve to build it.

Entrepreneurs
You know the market and the problem. You don't have a tech team. We become it.
- Start with
- Idea Validation
Early-stage startups
You need a product on a tight budget. We help you spend it where it counts.
- Start with
- Product Development
Funded startups
You've raised and the clock is running. Skip months of hiring and start building now.
- Start with
- Product Development
Traditional businesses
You want a digital product, a connected device or AI in your operations, without setting up an engineering department.
- Start with
- Idea Validation
International businesses
You want a dependable build partner across time zones. We're in Vietnam, Ireland and the US.
- Start with
- Product Development
The people we work with.
Unedited, from people who have worked with us.
“We brought Hephaestus Tech on board to overhaul our data analysis, and their AI solutions delivered beyond expectations. Processing times dropped significantly, and the insights we're getting now are sharper and more actionable. It's given our team a competitive edge in making faster, smarter decisions.”

Dmitrii Vasiukov
CEO, Yeager Technologies
“Hephaestus Tech stepped in with strategies that transformed how we develop. Our team's productivity has spiked — code quality's up, and we're pushing out innovations at a pace we couldn't before. Their approach just clicked with our goals.”

Ron Griffin
CEO, AgileLeap AI
“Integrating their AI tools into our workflows has been a game-changer. Projects that used to drag are now streamlined, and our clients have noticed the uptick in quality and speed. It's practical tech that makes a real difference.”

Aaqib Mohammed Sali
PM, EY GDS
“We tapped their AI expertise for our marketing campaigns, and the results have been impressive. Customer engagement is climbing, and we're hitting our targets with sharper, data-driven strategies. It's effective without being complicated.”

Thu Hang Do
Retail Marketing Operation Manager, Samsung VN
“Our evaluation process used to be time-intensive, but their tools changed that. We're now processing more qualifications with higher accuracy and less effort. It's straightforward, reliable, and lets us focus on what matters.”

Ha Ngan Ngo
International Qualifications Evaluator, NZQA
Building Storiiz: a screen-free audio player for children aged 0 to 6, with songs, bedtime routines and stories in Vietnamese and English.storiiz.co

Stephan Nguyen
Founder, Storiiz
Want to hear how it went for them? Ask us on a call.
Book a free callWhat you walk away with.
Whether you're building the company or backing it, here's what working with us gets you.
For
Founders & startups
- Lower cost of building a business
- Experienced technical and business people from the start
- Faster product launches
- No need to hire a large team too early
- A partner who stays after launch
For
Investors & strategic partners
- Access to promising startups and new opportunities
- Lower early-stage product development risk
- Participation in potential high-growth businesses
Tell us what
you're building.
A free 30-minute call. You'll get an honest view of the idea, the risks we see and what we'd do first, whether or not we end up working together.



