Marketplace Development · London
Marketplace Development in London
Building a platform where a London business connects buyers and sellers it does not own. The software is the easier half — marketplaces live or die on the chicken-and-egg problem of having neither side until you have the other, and that is a commercial problem before it is a technical one.
Why this comes up
The problem
The platform launches with no sellers, so no buyers come, so no sellers join. It works technically and fails commercially, which is the normal outcome for marketplaces built before the demand was proven.
What you get
What we deliver
- Seller onboarding and verification proportionate to what is being sold
- Split payments so sellers are paid and your commission is taken automatically
- Search and matching, since discovery is the value a marketplace actually adds
- Reviews and dispute handling, because trust between strangers is the core product
- Money handling structured properly, which has regulatory implications worth advice
- A cold-start plan, since the launch strategy matters more than the feature list
Want this scoped for your business in London?
Thirty minutes, no charge, no sales script. You leave with a written summary of what marketplace development 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
- TypeScript
- Next.js
- Stripe Connect
- PostgreSQL
Who we work with
Industries we serve
- Marketplaces
- Property
- Recruitment
- Trades and field services
- Retail
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 Marketplace Development services, everything we do in London or browse everything we do.
Marketplace Development in London — common questions
- How do we solve the cold-start problem?
- By seeding one side manually before launch — usually supply, recruited by hand. Marketplaces that launch both sides simultaneously and wait rarely recover. It is unglamorous work and it matters more than any feature.
- Should we start in one location or niche?
- Almost always. Liquidity in a narrow market beats thin coverage across a broad one — a buyer who finds three relevant sellers returns, one who finds none does not. Broad launches spread supply until it looks empty everywhere.
- Are there regulatory implications to handling payments?
- Potentially significant ones. Holding funds between parties can amount to regulated payment activity, which is why platforms typically use a provider's connected-accounts model rather than taking money into their own account. Worth taking advice early.
- How do we stop buyers and sellers going direct?
- Only partly, and it will happen. The realistic defence is making the platform genuinely more useful than transacting outside it — payment protection, dispute resolution, reviews — rather than trying to prevent contact.
- 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 Marketplace Development 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