WhatsApp Business API · London
WhatsApp Business API in London
Connecting London businesses to WhatsApp's Business Platform. The API is the route to using WhatsApp at any scale, and it is not the free Business app — it requires a provider, business verification and a per-conversation cost, all of which need settling before anyone plans around it.
Why this comes up
The problem
The WhatsApp Business app has been outgrown — several staff need access, conversations must reach the CRM, and the phone-based app cannot support any of it.
What you get
What we deliver
- A provider chosen, since access to the API runs through one
- Business verification completed, which takes time and blocks everything else
- Number strategy decided, because migrating an existing number has consequences
- Templates submitted and approved ahead of the campaigns that need them
- Integration into your CRM or helpdesk rather than a standalone inbox
- Conversation costs modelled against expected volume by category
Want this scoped for your business in London?
Thirty minutes, no charge, no sales script. You leave with a written summary of what whatsapp business api would actually involve — whether or not you use us.
Working in London
London
London clients usually come to us because they want senior people actually on their project rather than a large agency's B team, and because Midlands rates buy considerably more delivery per pound.
Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates.
Sectors we work with in London
- Financial Services
- Professional Services
- Technology
- Media
- Hospitality
- Retail
What we work with
Technologies and platforms
- WhatsApp Business Platform
- Twilio
- TypeScript
- HubSpot
Who we work with
Industries we serve
- Retail
- Ecommerce
- Healthcare
- Financial services
- Travel
Why us
Why London 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
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in London
Looking for the full picture? See our WhatsApp Business API services, everything we do in London or browse everything we do.
WhatsApp Business API in London — common questions
- How is this different from the Business app?
- The app is free, runs on a phone and suits a single person answering messages. The API supports multiple agents, integration and automation, requires a provider and verification, and costs per conversation. They are different products for different scales.
- What does verification involve?
- Meta verifying your business through documentation, which takes time and occasionally requires resubmission. It blocks everything downstream, so starting it early matters — projects planned around a launch date frequently slip here rather than in development.
- Can we keep our existing number?
- Usually, and migrating it to the API means it can no longer be used in the WhatsApp app. That is a one-way step worth understanding before taking it, particularly if staff currently rely on the app for that number.
- How is it charged?
- Per conversation, with rates varying by category and country, plus whatever your provider adds. Pricing has been restructured more than once, so model current rates against your volume and treat the figure as something to revisit rather than fix.
- Do you work with businesses across Greater London?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout London, including London and the surrounding Greater London area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of London businesses do you usually work with?
- Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates. Beyond that we work across Financial Services, Professional Services, Technology, Media, Hospitality and Retail.
- Do you cover the areas around London?
- Yes — we work throughout London, including Reading, Milton Keynes, Cambridge, Brighton. London is an urban area of roughly 9,000,000+, and we take on work across the wider Greater London region rather than the city boundary alone.
Talk to us about WhatsApp Business API in London
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