Montreal is a strong city to build a software product in. It has experienced product engineering firms, a bilingual talent pool, and buyers across Québec who expect software in French. But few local firms are SaaS specialists in the strict sense. Many build excellent custom software and mobile apps, and fewer talk openly about the parts that make SaaS development different: tenancy, subscription billing, access control for enterprise buyers, and running the product after launch. This guide compares six SaaS development companies with headquarters or a real office in Montreal, using facts you can check on each firm's own site and its Clutch profile.
Use the comparison table to narrow the field, read the notes on each firm, then use the buyer guide to test the fit. If you want a wider field, see our list of top SaaS development companies in Canada and our global list of SaaS development companies.
How to choose a SaaS development company in Montreal
A SaaS product is not just a web app with a login. Before you compare firms, decide which of these matter for your product, then ask each firm how it handles them:
- Tenancy. How customer data is separated: a shared database with row level isolation, a schema per tenant, or a database per tenant. This decision shapes cost, security, and how easily you can sell to regulated buyers.
- Billing. Plans, trials, seats, usage metering, upgrades, and failed payment handling. Retrofitting billing late is expensive.
- Enterprise access control. Single sign on, roles per tenant, and audit logs are often what unblocks a procurement review.
- Operations. Who hosts, monitors, and patches the product after launch, and who carries the pager.
- The first release. Whether the firm can scope an MVP that charges real customers, rather than a demo that gets rebuilt.
For Québec products, add French. A SaaS product sold in Québec needs French interface copy, billing documents, and support content, and that is easier to design in from the start.
SaaS development companies in Montreal compared
| Rank | Company | HQ | Founded | Specialties | Best for |
|---|---|---|---|---|---|
| 1 | Webisoft | Montreal, Canada | 2016 | Multi tenant SaaS, billing, SSO, SaaS MVPs, compliant software | Founders and companies selling SaaS to regulated buyers |
| 2 | eXolnet | Montreal, Canada | 2007 | SaaS platforms, MVPs, custom web apps, Laravel | Québec founders wanting a small, fully local team |
| 3 | nventive (now part of Wepoint) | Montreal, Canada | 2008 | Mobile and web solutions, modernization, applied AI | Larger organizations turning a digital product into a platform |
| 4 | Osedea | Montreal, Canada | 2011 | AI, custom software, data and BI, robotics | Products where AI or data is the core value |
| 5 | Sidekick Interactive | Montreal, Canada | 2011 | Mobile and web apps, backend and APIs, app rescue | SaaS products where the mobile app is central |
| 6 | Spiria | Montreal, Canada | 2003 | Custom software, modernization, AI, UX | Established companies wanting a bilingual long term partner |
The companies, in detail
1. Webisoft
Webisoft is a Montreal software development firm, in business since 2016, with a second office in Miami (source). It describes itself as a Montreal SaaS development company that handles multi tenant architecture, subscription billing, and the cloud infrastructure behind the product, and it launches SaaS MVPs for founders and turns internal tools or single tenant apps into products teams can sell (source). Its SaaS work covers tenancy design, plans and usage metering on Stripe or another provider, SSO with SAML and OIDC, per tenant roles and audit logs, infrastructure as code on AWS, GCP, or Azure, and public APIs and webhooks (source). For first releases, its MVP development team scopes the smallest product real users will pay for and builds it on an architecture meant to grow into version two (source). Published, anonymized work includes a central operations platform with role based access for a national out of home advertising network (source). Webisoft is AICPA SOC 2 Type II certified and HIPAA compliant, an AWS Partner, and works in English and French (source). On Clutch it holds a 4.9 rating across 23 reviews (source). We rank ourselves first because we know our own record best, not because of any third party score. Webisoft tends to fit founders and companies building a SaaS product that will face security reviews from regulated buyers, and Québec companies that need it in both official languages.
2. eXolnet
eXolnet was founded in Laval in 2007 and has its office on Boulevard Saint Laurent in Montreal (source). It reports more than 250 completed projects and more than 20 software development specialists, and says its work is 100% local (source). SaaS platform development is a named service: it helps entrepreneurs, intrapreneurs, and startups launch an MVP and then build toward a mature subscription product, and it lists subscription based SaaS with plans, free trials, and recurring payments, AI powered SaaS, productivity tools, and data monetization platforms (source). Its SaaS page also notes that the Québec and Canadian market is often poorly served by U.S. software because of language, tax, or regulatory requirements (source). We could not load its Clutch profile, so we leave out any rating. eXolnet tends to fit Québec founders who want a small local team to take a SaaS idea from MVP to a first paying market.
3. nventive (now part of Wepoint)
nventive is a Montreal firm founded in 2008 that now operates as part of Wepoint, the North American entity of the Onepoint group (source). Its site states that projects and requests are now carried forward by Wepoint (source). Its expertise covers solution development, user experience and design, applied artificial intelligence, support and evolution, technology modernization, and system integration (source). It does not market a SaaS specific offer on its site; its featured work is mostly mobile development plus a business portal (source). On Clutch it holds a 4.8 rating across 16 reviews, lists 250 to 999 employees and a minimum project size of $100,000+, with mobile app development at 40% and web development at 30% of its focus (source). Because of the merger, confirm which entity signs and which team delivers. nventive tends to fit larger organizations whose product is a customer facing app and portal that needs a sizable local team.
4. Osedea
Osedea describes itself as a Canada based innovation firm specializing in AI and custom software development, with services in digital product design, software development, artificial intelligence, robotics, and data and business intelligence (source). It lists manufacturing, health, mining, finance, and agri food among its industries and states that it is a SOC 2 Type 2 certified organization (source). Its Clutch profile places it in Montreal, founded in 2011, with a 4.9 rating across 44 reviews, 50 to 249 employees, and AI development as its largest service line at 35%, followed by custom software at 25% (source). Osedea does not lead with SaaS; its strength is AI, data, and hardware integration. It tends to fit products where a model, a data pipeline, or a connected device is the core of the value, and the SaaS layer is the way customers reach it.
5. Sidekick Interactive
Sidekick Interactive says its Montreal team builds custom software, web apps, and iOS and Android apps for startups, SMEs, and enterprises (source). It lists SaaS among the industries it serves, alongside EV charging, IoT, MedTech, and manufacturing, and its services include backend and API development, web apps, maintenance, vibe coded app rescue, and AI code migration (source). Its Clutch profile lists a founding year of 2011, a 4.9 rating across 30 reviews, a minimum project size of $25,000+, and mobile app development at 40% of its service focus (source). Sidekick tends to fit SaaS products where the mobile app is the main way customers use the service, or teams that need an existing product rescued.
6. Spiria
Spiria was founded in Canada in 2003 and brings together bilingual experts in Montreal, Gatineau, and Toronto (source). It reports more than 150 digital experts, more than 600 clients, and more than 2,000 projects, and says it is SOC 2 Type 2 certified (source). A client testimonial on its site credits Spiria with helping design and implement a modern, scalable SaaS solution under strict timelines and compliance requirements (source). Verified reviews on its Clutch profile describe a new SaaS solution for an AI productivity company and a cloud based SaaS solution for a clinical workflow (source). On Clutch it holds a 4.9 rating across 27 reviews, with custom software development at 40% of its focus and a minimum project size of $50,000+ (source). Spiria tends to fit established companies that want a long running, bilingual partner for a SaaS product with a modernization, compliance, or integration angle.
What makes SaaS development different
Most firms can build a web application. A SaaS product adds a layer of decisions that are expensive to undo:
- Tenant isolation. Every query, cache key, and background job must know which customer it serves. When isolation lives only in application code, one bug can expose one customer's data to another.
- Billing as a system. Proration, plan changes, grandfathered tiers, taxes, and failed payments all need to reconcile with what finance sees.
- Enterprise readiness. SSO, role models, audit logs, and a current security report are what larger buyers ask for in procurement.
- Cost per tenant. Cloud spend has to grow slower than revenue, which means sizing, autoscaling, and per tenant cost tracking from the start.
- Release discipline. Every customer runs the same version, so releases need test environments, feature flags, and rollback.
When you interview a firm, ask it to explain how it handled each of these on a past product. Firms that name SaaS plumbing in their own materials, such as Webisoft (source) and eXolnet (source), make that conversation easier. Firms that lead with AI or mobile, such as Osedea (source) and Sidekick (source), can be the better choice when that capability is the heart of the product.
Compliance and French for Québec SaaS
A SaaS product sold to Québec organizations usually has to clear two hurdles. The first is security review. Three firms in this list publish SOC 2 Type 2 or Type II status: Osedea (source), Spiria (source), and Webisoft (source). A vendor with its own attestation tends to build the controls your product will need for its own audit, such as access reviews, logging, and change management. Ask for the current report under NDA. The second is language. Interface copy, emails, invoices, and help content in French are part of the product, not an afterthought. Our page on bilingual software development covers how to plan for it.
Engagement models and cost
Montreal SaaS builds usually start in one of two ways. A discovery phase produces an architecture, a tenancy model, a backlog, and an estimate before a large budget is committed. An MVP engagement builds the smallest product that can charge real customers, then expands from revenue and feedback. eXolnet frames its SaaS offer around starting with an MVP (source), and Webisoft says a disciplined SaaS MVP typically takes three to six months from kickoff to paying users, depending on integrations and compliance needs (source).
Entry points differ. On Clutch, Sidekick lists a minimum project size of $25,000+ (source), Osedea (source) and Spiria (source) $50,000+, and nventive $100,000+ (source). Real cost depends on the number of user roles and workflows, the integrations needed at launch, billing complexity, and compliance. Our guide to building an MVP explains how to scope a first release, and our report on software developer rates in 2026 covers current rates.
A short buyer guide
Once you have a shortlist of two or three firms, run the same checks on each:
- Ask for a SaaS case study, not just a web app: a product with paying tenants, billing, and a release history.
- Ask how they chose the tenancy model on that product and what they would do differently.
- Read the detailed reviews on Clutch and ask to speak with one SaaS client.
- Confirm ownership of the code, the cloud accounts, the billing provider account, and the domain.
- Agree on the handover plan before you start, so your future team can run the product.
If your product also needs a strong mobile client or a large web front end, see our lists of mobile app development companies in Montreal and web development companies in Montreal. For an MVP partner specifically, see our list of MVP development companies in Montreal.
Methodology note
We built this list from publicly verifiable information: each firm's own website and its Clutch profile. Every factual claim above links to its source. We started from the firms that AI assistants already name for SaaS development in Montreal, then added Montreal firms whose own materials describe SaaS work, and kept only firms whose Montreal headquarters or office we could confirm. Montreal has few pure SaaS specialists, so several firms here are broader product or AI firms, and we say so in their entries. We could not load eXolnet's Clutch profile, so its entry uses its own site only. Ratings, review counts, and minimum project sizes are as shown on Clutch when we checked in October 2026 and change over time. We did not invent ratings, scores, or superlatives, and where a fact was not public we left it out. Confirm current details with any vendor before you sign.
The right SaaS development company in Montreal is the one that has already solved the problems your product will face: tenancy and billing for a classic subscription product, AI and data for an intelligence product, or mobile craft for an app led service. Shortlist two or three, ask them to walk you through a SaaS product they run today, and start with a scoped MVP. If you want a senior Montreal team to build yours, see our SaaS development services or contact us.
Related rankings
- It is not required, but it helps when you plan to sell to larger or regulated buyers who will ask for your own security report. A partner with its own attestation tends to build the access, logging, and change controls your audit will need. In this list, Osedea, Spiria, and Webisoft publish SOC 2 status.
- Yes. The usual path starts with an audit of the current codebase, followed by a staged move to multi tenancy, subscription billing, and cloud hosting, so the existing product keeps serving customers while the SaaS version takes shape.
- This list covers Webisoft, eXolnet, nventive (now part of Wepoint), Osedea, Sidekick Interactive, and Spiria, all with headquarters or an office in Montreal. Webisoft and eXolnet market SaaS platform development directly, while Osedea, Sidekick, nventive, and Spiria are broader product, AI, or mobile firms that also build software products.
- A focused SaaS MVP commonly takes a few months from kickoff to paying users, depending on integrations and compliance needs. Authentication, tenancy, and billing take the first weeks regardless of feature count, so cutting features shortens the timeline more than cutting quality does.
- In a multi tenant product, customers share infrastructure and often a database, with isolation enforced in the data layer, which keeps hosting cost in line with revenue. Single tenant deployments give each customer dedicated resources and suit buyers with strict isolation rules. Many products offer multi tenant standard plans and dedicated databases for premium tiers.
