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Microsoft Teams App Development · Belfast

Microsoft Teams App Development in Belfast

Building Teams apps for Belfast organisations on Microsoft 365. Teams is where a great many staff spend the working day, and an app that lives there reaches people who would not open another system — which is the argument for it, ahead of anything the app itself does.

Why this comes up

The problem

An internal tool exists and staff rarely open it, because it is another system to remember alongside the one they are already in all day.

What you get

What we deliver

  • The app surfaced where it fits — tab, bot, message extension or all three
  • Single sign-on through Entra ID, so nobody signs in twice
  • Actions completed in Teams rather than linking out to another system
  • Adaptive cards used properly, since they carry most of the interaction
  • Deployment and admin approval planned, because IT controls what gets installed
  • Permissions scoped to what the app genuinely needs

Want this scoped for your business in Belfast?

Thirty minutes, no charge, no sales script. You leave with a written summary of what microsoft teams app development would actually involve — whether or not you use us.

Book a 30-minute call

Working in Belfast

Northern Ireland

Belfast has a substantial fintech and cyber security sector, and businesses trading here deal with a distinct regulatory position post-Brexit that affects goods moving between Northern Ireland, Great Britain and the Republic.

Fintech and security-accredited systems, plus trading platforms that handle the specific customs position on goods.

Sectors we work with in Belfast

  • Fintech
  • Cyber Security
  • Film & Media
  • Manufacturing
  • Higher Education

What we work with

Technologies and platforms

  • Microsoft Teams
  • Entra ID
  • TypeScript
  • Adaptive Cards

Who we work with

Industries we serve

  • Professional services
  • Financial services
  • Healthcare
  • Manufacturing
  • Local government

Why us

Why Belfast businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Microsoft Teams App Development in Belfast — common questions

Why build inside Teams rather than a web app?
Reach. Staff already have Teams open, and an app that appears there gets used by people who would not remember to visit a separate system. For internal tools with adoption problems, that alone frequently justifies the additional build.
What does single sign-on give us?
Removal of the friction that kills internal tools. Users are already authenticated in Teams, so an app using Entra ID identity means no second login. Any tool asking staff to sign in again loses a proportion of them at that moment.
Who approves installation?
Your Microsoft 365 administrators, and that process needs planning into the timeline. Apps built without involving IT reach completion and then wait for approval, which is avoidable by having the conversation at the start rather than at the end.
Tab, bot or message extension?
Depends on the interaction. Tabs suit browsing and dashboards, bots suit conversational requests and notifications, message extensions suit pulling information into a chat. Many useful apps combine them rather than choosing one.
Do you work with businesses across County Antrim?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Northern Ireland, including Belfast and the surrounding County Antrim area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Belfast businesses do you usually work with?
Fintech and security-accredited systems, plus trading platforms that handle the specific customs position on goods. Beyond that we work across Fintech, Cyber Security, Film & Media, Manufacturing and Higher Education.
Do you cover the areas around Belfast?
Yes — we work throughout Northern Ireland, including Lisburn, Bangor, Newry. Belfast is an urban area of roughly 345,000+, and we take on work across the wider County Antrim region rather than the city boundary alone.

Talk to us about Microsoft Teams App Development in Belfast

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom