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Greta.Agency

Build a marketplace
for Fintech.

Built for financial technology startups and companies.

We build marketplace platforms with listings, roles, payments, and admin tools built in.

Launch both sides of the marketBuilt-in platform fee logicReady to scale listings and users4–10 weeks
The problem

Why Fintech companies struggle with this.

1

Building on generic SaaS tools that can't handle financial compliance requirements

2

Payment and banking integrations that no-code tools can't support properly

3

Security and audit requirements that demand custom access control logic

4

Slow time-to-market while compliance and architecture questions pile up

The solution

How we build it
for Fintech.

Off-the-shelf tools weren't built for financial data handling, compliance workflows, or the audit trails regulators expect. Custom-built fintech products give you control over data residency, access patterns, and the compliance logic baked into your product.

Fintech products face unique pressures: regulatory requirements, high security expectations, and users who demand both speed and trust. Generic software rarely fits.

Purpose-built for two-sided dynamics — not a generic CRUD app

Marketplace payments including platform fee logic and seller payouts

Built to validate your model before investing in a large engineering team

Industry context built in — not bolted on

Deliverables

What you get.

01

Two-sided marketplace with buyer and seller flows

02

Listings system with categories, filters, and search

03

Payments with platform fee and payout logic

04

Seller dashboard for managing listings and orders

05

Admin panel for platform operations and moderation

Use cases

What Fintech companies
build with us.

Payment platforms

Build payment processing, wallet management, or money movement features with proper compliance hooks.

Financial dashboards

Give users real-time visibility into account balances, transaction history, and financial metrics.

Lending and underwriting tools

Automate credit decisioning workflows and integrate with bureau and open banking APIs.

Process

How we work.

01

Define the platform model

Map your buyers, sellers, listing types, and transaction or payout logic.

02

Structure the experience

Design discovery, listing creation, transaction, and admin flows.

03

Build the core system

Ship listings, roles, payments, and the marketplace operations layer.

04

Launch and validate

Go live, attract first users on both sides, and validate supply-demand fit.

Ready to build a marketplace for Fintech?

Typical timeline: 4–10 weeks

About this service

What is Build a Marketplace for Fintech?

Build a Marketplace for Fintech means building a marketplace specifically designed around the workflows, compliance expectations, and user needs of financial technology startups and companies. Unlike generic software or off-the-shelf tools, a custom-built solution gives your team full control over features, data, and the product roadmap — without paying for capabilities you don't need or working around limitations that slow you down.

Fintech products face unique pressures: regulatory requirements, high security expectations, and users who demand both speed and trust. Generic software rarely fits.

Why Fintech companies need custom build a marketplace

Off-the-shelf tools weren't built for financial data handling, compliance workflows, or the audit trails regulators expect. Custom-built fintech products give you control over data residency, access patterns, and the compliance logic baked into your product.

Most fintech teams start with generic tools because they're fast to deploy. But as the business grows, those tools create friction — missing the specific logic, integrations, and workflows that fintech operations actually need. A custom-built product eliminates that friction permanently.

How long does it take to build?

Simple fintech MVPs can ship in 4–6 weeks. Compliance-heavy products with banking integrations typically take 8–14 weeks. The timeline depends on scope, the number of user types, and the depth of integrations with existing fintech systems. A well-scoped project with clear requirements moves significantly faster than one that evolves through the build. We scope tightly before starting so timelines stay predictable.

What does it cost?

Custom fintech builds typically range from $8k–$40k depending on compliance requirements, integrations (Plaid, Stripe, open banking), and feature scope. The biggest cost drivers are integration complexity, the number of distinct user roles, and whether the product needs to handle regulated data or compliance workflows. We provide a clear scope and fixed-price quote before any work begins.

Custom build vs. off-the-shelf tools

Off-the-shelf tools work well for standard use cases. But fintech companies often have requirements that generic SaaS tools weren't built for: building on generic saas tools that can't handle financial compliance requirements, payment and banking integrations that no-code tools can't support properly, or workflows that don't fit the assumptions baked into general-purpose platforms.

A custom-built product gives you:

  • Full ownership — no per-seat fees or platform lock-in
  • Workflows built exactly for how fintech teams operate
  • Integrations with the tools and data sources you already use
  • A foundation you can extend as your product and team grow

The right time to build custom is when generic tools are creating real friction, costing more in workarounds than a custom build would cost, or blocking product-critical workflows that your fintech business depends on.

Start your project

Ready to build
for Fintech?

We build marketplace platforms with listings, roles, payments, and admin tools built in. Scoped for financial technology startups and companies.