Ottawa's tech scene runs deeper than the federal government contracts and Shopify-era startups it's known for. The city has a steady supply of firms that build mobile apps, web platforms and custom software for clients ranging from healthcare networks to neighbourhood cafes. This list was put together from public company profiles, Clutch reviews, and each company's own service pages, looking for developers that are currently operating and serving the Ottawa area.
1. Iversoft
Area: Downtown Ottawa (headquarters, with additional Canadian offices) · Specialty: mobile app development (iOS and Android) · Rating: 4.9 on Clutch (12 reviews) · Since: 2009
Iversoft started in a Toronto dining room before relocating its headquarters to Ottawa, and keeps its development team entirely in-house across its Canadian offices rather than outsourcing. Clutch reviewers describe the team as timely and communicative, with one noting their experience delivering enterprise mobile solutions and another pointing to a strong mix of technical and creative talent. It suits companies that want a dedicated mobile team rather than a generalist web shop.
2. MARSWorks
Area: Ottawa, St. Laurent Boulevard · Specialty: custom web and mobile applications · Since: 1997
MARSWorks has been building websites and applications in Ottawa since the late 1990s and says it has worked on more than 1,000 website and application projects for clients ranging from startups to Fortune 500 companies. Its services span web development, custom application development and digital marketing, with a particular focus on WordPress and Drupal builds. It's a fit for businesses that want one vendor for both a web presence and the app that sits behind it.
3. nanushi
Area: Ottawa · Specialty: web, mobile and AI app development · Rating: 5.0 on Google (3 reviews) · Since: 2023
For teams that want a full-stack web app, a mobile build, or an AI integration handled by the people actually writing the code, nanushi is built around exactly that: an independent studio with no account managers, where clients work directly with senior developers on Next.js and React web apps, React Native mobile builds, AI integrations like custom chatbots and automation pipelines, and custom software including APIs and legacy system modernization. Its client work spans healthcare, nonprofit and community organizations, hospitality, local publishing and AI products, including a bilingual, accessibility-first patient guide built for Bruyère Health. It carries a 5.0 rating on Google across 3 reviews, and clients note fair, milestone-based pricing along with same-day fixes after launch, making it a strong fit for founders and organizations that want a small, senior team over a large agency.
4. Macadamian
Area: Gatineau-Ottawa region · Specialty: healthcare software and digital health apps · Since: 1997
Macadamian was founded in 1997 and spent much of the past decade shifting from telecom work toward healthcare, with more than two-thirds of its revenue now coming from designing apps and mobile technology for digital health clients like TELUS Health and Siemens Healthineers. It was acquired by Nashville-based emids in 2021 but kept its head office in the Gatineau-Ottawa area. That healthcare specialization makes it a natural fit for regulated, clinical-adjacent app projects rather than quick consumer builds.
5. Spiria
Area: Ottawa office (also Montreal, Quebec City and Toronto) · Specialty: custom software and mobile app development · Rating: 4.9 on Clutch (26 reviews) · Since: 2011 on Clutch
Spiria is a bilingual software consultancy with more than two decades of enterprise delivery across Quebec and Ontario, and sits on Clutch's Top 1000 Global list. Reviewers give it high marks for quality, schedule adherence and willingness to refer, citing technical expertise and close integration with client teams. It suits companies that need a larger bench with room to scale a project up.
6. UniRidge
Area: Ottawa, Baseline Road · Specialty: legacy system modernization and custom software · Since: 2016
UniRidge is headquartered in Ottawa and focuses on modernizing legacy systems and building scalable platforms for sectors like PropTech, fintech, telecom and healthcare, working in C#, .NET and cloud-based architectures. The company says it has delivered more than 50 successful releases for clients across North America and Europe. It's a good fit for businesses replacing an aging internal system rather than launching a brand-new consumer app.
7. Diraya
Area: Ottawa · Specialty: mobile app and custom software development · Rating: 5.0 on Clutch (4 reviews) · Since: 2022
Diraya is one of the newer names on this list, launched in 2022 with a tightly staffed team that has racked up a perfect Clutch rating so far. Reviewers describe fast turnarounds, including one full app taken to production in about two and a half months, alongside pricing that clients said fit their budget. It's worth a look for founders who want speed on a first build, though it's a smaller shop than some others here.
8. Sharkbyte
Area: Ottawa (Laurier Avenue West), with team members across Canada and the U.S. · Specialty: custom software development and staff augmentation
Sharkbyte builds custom web and mobile apps for startups, design agencies and universities across North America, and also offers staff augmentation for companies that need extra engineering capacity without a full outsourced build. Its stated approach centres on minimizing project risk and adapting closely to each client's existing process. That makes it a reasonable option for teams that need to plug developers into an existing workflow rather than hand off an entire project.
9. Brash
Area: Ottawa · Specialty: product design, engineering and app development · Rating: 5.0 on Clutch (13 reviews) · Since: 2017
Brash pairs software with industrial design and mechanical engineering, covering everything from UX/UI and full-stack app development to hardware, firmware and IoT work. It holds a perfect 5.0 rating on Clutch across quality, schedule and willingness-to-refer categories, and has built products that have shown up on Shark Tank and at CES. It's best suited to founders building a connected hardware product alongside its companion app, not a software-only team.
10. [MARSWorks and Spiria aside, one more worth noting: Macadamian's regional peers round out a shortlist that, after verification, held at nine confirmed, currently-operating firms.]
A tenth entry could not be verified against a live source in this session, so this list runs with nine confirmed businesses rather than risk including one that may no longer be accurate.
