1. Tapadoo
Tapadoo has been building iOS and Android apps from Dublin since 2009. They focus exclusively on mobile, which keeps them sharp. Their work spans fintech, telecom, medtech, and government.
A 20-person team that's been around for over 15 years signals stability and deep expertise. If you want a specialist mobile studio rather than a generalist digital agency, Tapadoo fits the bill.
- Website: tapadoo.com
- Founded: 2009
- Team size: 20+
- Key sectors: Fintech, Telecom, Medtech, Government
2. Marino Software
One of Dublin's longest-standing app agencies, Marino Software has been operating since 2006. They handle mobile apps, enterprise platforms, and emerging tech like IoT.
They built the "Game of Our Lives" app alongside Thierry Henry, which gives you a sense of the caliber of projects they take on. Nearly two decades in business says a lot about consistency.
3. Square Root Solutions
Square Root Solutions has offices across Dublin, Cork, Galway, and Limerick. They've delivered over 275 apps for 350+ clients and have picked up industry awards in 2022 and 2023.
Their nationwide presence is unusual for an Irish agency and speaks to their scale. A strong option if you need a team with reach beyond Dublin.
- Website: squareroot.ie
- Offices: Dublin, Cork, Galway, Limerick
- Track record: 275+ apps, 350+ clients
- Awards: 2022, 2023 industry awards
4. Threadable
Founded in 2009, Threadable is a distributed team with roots in Dublin and developers across Poland, Ukraine, Croatia, and India. They specialize in healthcare, finance, IoT, food tech, and logistics.
Their distributed model means they can scale up or down depending on the project. A good choice for complex builds that need a flexible team structure and cross-sector experience.
- Website: threadable.ie
- Founded: 2009
- Team size: 20+ (distributed)
- Key sectors: Healthcare, Finance, IoT, Food Tech, Logistics
5. Appuchino
Appuchino is a smaller studio based in Dun Laoghaire, just south of Dublin. They've built apps for a UK running startup (Apple Watch integration), a restaurant software unicorn, and Irish Rail.
Their size means you're working closely with the people actually writing the code. If your project needs attention to detail and a personal touch, they deliver.
- Website: appuchino.com
- Founded: ~2013
- Location: Dun Laoghaire, Co. Dublin
- Notable projects: UK fitness app (Apple Watch), restaurant platform, Irish Rail
6. BoatyardX
BoatyardX launched in 2019 and was acquired by Ergo Group in 2022, giving them the backing of one of Ireland's largest IT services companies. They focus on fintech, payments, ecommerce, and IoT.
The Ergo acquisition adds enterprise-level resources while BoatyardX retains its own brand and agile approach. A good balance of startup energy and corporate backing.
- Website: boatyardx.com
- Founded: 2019 (acquired by Ergo Group, 2022)
- Key sectors: FinTech, Payments, eCommerce, IoT
7. HST Solutions
HST Solutions has been around since 2007, working across healthcare, education, retail, and media. They offer mobile apps alongside web development and digital strategy.
Their longevity in the Dublin market is a good sign. They serve clients like BSI and DMS, with a focus on practical, business-driven solutions rather than flashy design.
- Website: hstsolutions.ie
- Founded: 2007
- Key sectors: Healthcare, Education, Retail, Media
- Notable clients: BSI, DMS
8. Dev Centre House
Dev Centre House has a team of over 100 developers and has accumulated 30+ Clutch reviews since their founding in 2012. Project budgets range from €600 to €80,000, making them accessible for a wide range of needs.
They're one of the higher-volume agencies on this list. If you need a large team that can absorb a bigger project quickly, they're worth a conversation.
- Website: devcentrehouse.com
- Founded: 2012
- Team size: 100+
- Project range: €600 - €80,000
- Clutch reviews: 30+
9. Appy Days
A newer entrant, founded in 2022, Appy Days operates across Dublin, Galway, Limerick, and Cork. They focus on mobile app development for Irish businesses and are building a presence across the country.
They're still early in their journey, but their multi-city approach and Irish-market focus make them one to watch for local projects.
- Website: appydays.ie
- Founded: 2022
- Offices: Dublin, Galway, Limerick, Cork
10. Cyan Bear
Cyan Bear has served 250+ clients across diverse industries. They've also built their own product, DODA, which showcases their ability to think beyond client services.
Building your own product alongside client work signals a team that stays current and thinks about products holistically, not just features in isolation.
Final Thoughts
Dublin's app development scene is deep, with agencies ranging from two-person studios to 100+ developer shops. The quality of talent here reflects the city's role as a European tech hub.
That said, if you're running an ecommerce store and already have a website you're happy with, building an app from scratch might not be the best use of your budget. MobiLoud lets you extend your existing site into a native mobile app, with push notifications, App Store presence, and native performance, at a fraction of the cost and timeline of a ground-up build.
Get a free demo to see how it works for your store.
