Community Platform Development — Members, Marketplace, Courses and Events in One Product

We design and build owned community platforms for founders and organizations that have outgrown Circle-style tools. Fixed fee, weekly working builds, source code yours.

  • Founder-led
  • IIT-trained
  • 5.0★ client reviews on Google
Book a free 30-min scope call
The Raising Club community platform: caregiver marketplace landing page built by SigmaticAI
5
modules live, shipped as one platform
EN + ES
English and Spanish at launch, not retrofitted
23-screen
admin console, built for a non-technical owner
3
audiences: parents, caregivers and organisations

Built The Raising Club — a vetted caregiver marketplace, training academy, events engine, memberships and a 23-screen admin console, live in the US. First commit 29 May 2026 · five modules in production 2 July 2026. See the case study

Who we build community platforms for

Community founders

You are replacing Circle or Mighty Networks with a product you own — your data, your billing, your workflows, your roadmap.

Membership organizations

Associations and member bodies running events, directories, dues and training, currently across four subscriptions that do not talk to each other.

Marketplace-led communities

Where members buy from each other — caregivers, tutors, coaches, creators — so the directory has to carry booking and payouts, not just profiles.

Built for care and childcare communities

A care marketplace carries obligations a hobby community does not. We have built one, in production, for families in the US — and the verification work is most of what makes it usable.

  • Caregiver profiles with reference screening and background-check status built into the record, not tracked in a spreadsheet
  • Family bookings with schedules, recurring care and cancellation rules
  • Credentials earned in the academy that show on the marketplace profile
  • Admin approval queues, so nobody is listed before a human has looked

What your platform includes

Six modules, one schema and one payment path. Most builds start with three of them; the rest are there when the community is ready for them.

A verified caregiver profile with identity and background-check status, in The Raising Club

Members and profiles

Role-based member profiles — member, provider, organization, admin — each with its own fields, permissions and visibility. Verification and reference checks sit on the profile record, so a directory listing carries proof rather than a claim.

  • Roles and permissions
  • Verification and references
  • Searchable directories
Caregiver job board with structured search in The Raising Club marketplace

Marketplace and bookings

Listings with structured search, availability and booking, and Stripe Connect payouts to providers. The money path is built once and reused by every module, which is why a marketplace and a course checkout do not end up as two half-finished billing systems.

  • Listings and search
  • Availability and booking
  • Stripe Connect payouts
Course catalogue in The Raising Club training academy

Courses and badges

Lessons, quizzes and certificates, with credentials that appear on the member profile. For a marketplace community this is the loop that matters: training raises the quality of the supply side, and the badge is what a buyer scans for.

  • Lessons and media
  • Quizzes and grading
  • Verifiable certificates
Events browser with booking in The Raising Club community platform

Events

Online and offline events with registration, capacity, attendance and calendar sync. Paid events use the same checkout as memberships and bookings, so revenue reporting is one number rather than three exports.

  • Registration and capacity
  • Attendance tracking
  • Calendar sync
Membership plans and pricing configured without a developer in The Raising Club

Memberships and payments

Tiers, subscriptions, trials and coupons, with entitlements that other modules read — a tier can unlock a course, a discount on a booking, or an event. Dunning and failed-payment handling are part of the build, not a later surprise.

  • Tiers and entitlements
  • Subscriptions and trials
  • Coupons and dunning
Admin verification queue in The Raising Club community platform

Admin console

Moderation, approval queues, refunds, member support and a CMS for the pages your team changes weekly. Built for the person who actually runs the community, which usually means fewer clicks than the member-facing side.

  • Moderation and approvals
  • Refunds and support tools
  • Reports and CMS

Not sure which modules you need? That is what the call is for.

Book a free 30-min scope call

Case study: The Raising Club

Five modules, one platform, in production.

The Raising Club needed a vetted caregiver marketplace, a training academy, an events engine, paid memberships and a full admin console — for parents, caregivers and organisations, in English and Spanish.

Each of those is a project on its own. They shipped together because they share one schema, one permission model and one payment path — so a member, a purchase and a permission mean the same thing everywhere, and the admin console operates all five from one place. First commit 29 May 2026; live 2 July 2026, and running today.

“They delivered on time and were very proactive in recommending new capabilities for the marketplace.”

SigmaticAI delivered a complete MVP with five feature areas, including a vetted caregiver marketplace, membership plans, courses, and events. The team was proactive, talented, and knowledgeable, recommending new capabilities and using the latest technology.

Read the full case study
Marketplace search filters in The Raising ClubMembership plans and pricing in The Raising ClubAdmin verification queue in The Raising Club

What clients say, in their words

Left on our Google Business and Clutch profiles, quoted exactly as written.

SigmaticAI delivered exceptional results in building our custom Agentic AI system. Ketan Khamgaonkar’s technical mastery in autonomous agent design, system integration, and workflow execution made project delivery seamless. Implementation was prompt, and the AI agents immediately streamlined our operations. Highly recommend Ketan and the SigmaticAI team!
Madhuvanti Bapat12 reviews · Google
Working with SigmaticAI has been an outstanding experience. A special mention to Ketan Khamgaonkar, whose deep technical expertise, clear communication, and structured approach made a significant difference throughout our project. Delivery was prompt, and the AI solutions implemented have had an immediate, positive impact on our workflow. Highly recommend Ketan and the SigmaticAI team!
Dr. Chaitanya V. Bhore10 reviews · Google
I have purchased clinic software from them.. it has improved efficiency and treatment quality for my patients.. Also it’s very useful for accurate accounting..
Abhishek SambreDoctor · 14 reviews · Google
Good experience with development and automating process. Great management and quick handover.
Kusumika sinha roy30 reviews · Google

How a build works

  1. Day 0

    Scope call

    Thirty minutes, free. You leave with a recommended stack, a timeline and a firm price range.

  2. Week 1

    Design and data model

    Roles, permissions and the money path, agreed before anyone writes a feature.

  3. Weeks 2+

    Weekly working builds

    A running build on staging every week — not a status report. You use it as it grows.

  4. Launch

    Handover and 30 days

    Production deploy, documentation, your repo and cloud accounts, and thirty days of support.

Stack, ownership and time zones

The three questions every buyer outside India asks before the second call.

The stack

Next.js, Supabase (Postgres) and Stripe by default. Bubble when speed to market matters more than scale — and we will tell you which one your build is.

Ownership

Your repository, your cloud accounts, your Stripe. IP assigned in the contract. Nothing about the handover depends on us still being in the picture.

Overlap hours

We work 9:00–13:00 US Eastern and 9:00–17:00 UK from Nagpur, India. Weekly call, Slack through the day, Loom for anything that needs showing.

Community platform development cost

Ranges, not a quote — the number firms up on the scope call, once we know which modules you actually need.

Community MVP

from $8,000

4–6 weeks

  • Members and profiles
  • One core module
  • Payments
  • Admin console

Scale and retain

Monthly retainer

Scoped on the call

  • New features
  • Support and monitoring
  • Analytics and reporting

Fixed fee against a scoped brief. Changes are logged and costed, never silently absorbed.

Custom build vs the SaaS you are on now

An honest comparison, including when you should not call us.

Community SaaSCustom build
Monthly feeGrows with membersHosting only
Transaction feeOften 2–10% on top of StripeStripe alone
Data ownershipTheirs, exportableYours, in your Postgres
Custom workflowsWithin what the plan allowsWhatever your community does
Marketplace + courses togetherUsually two productsOne platform, one checkout

If you have under 200 members and no marketplace, stay on SaaS — it is cheaper and it works. Call us when you have hit its limits.

Frequently asked questions

How long does a community platform take to build?

A focused MVP with members, one core module, payments and an admin console is typically four to six weeks. A full platform of three to five modules runs eight to fourteen. The Raising Club — five modules, two languages, three audiences — went from first commit to production in eight weeks, which is the fast end and depended on decisions being made quickly.

Can you migrate members from Circle or Mighty Networks?

Yes. Members, profiles, posts and subscription state can be exported from most community SaaS and imported into the new platform. Subscriptions usually need care: existing billing relationships either move to your Stripe account or run to the end of their term on the old system while new signups start on the new one. We map this on the scope call, because it changes the launch plan.

Do we own the code?

Yes — your repository, your cloud accounts, your Stripe account, and IP assigned in the contract. You can take the codebase to another developer the day after launch. Nothing about the handover is designed to keep you here.

How do you handle time zones?

We work 9:00–13:00 US Eastern and 9:00–17:00 UK from Nagpur, India — a real overlap, not a promise to be available at 3 a.m. A weekly call, Slack through the day, and a Loom walkthrough with each weekly build, so progress is visible without a meeting.

Can it include a marketplace and courses in one platform?

That is the usual reason people call. It is also the thing stitched-together SaaS does worst: two products, two checkouts, two member lists. Built as one platform they share a schema and a payment path, so a course badge can appear on a marketplace profile and one report covers all the revenue.

What about mobile apps?

Most community platforms should start as a fast mobile web app — it installs to the home screen, updates without app-store review, and costs a fraction of native. When a native app is genuinely needed (push-heavy engagement, offline use), we build it on the same backend rather than rebuilding the platform.

How are payments handled?

Stripe by default, including Stripe Connect where members pay each other and you take a platform fee. Subscriptions, one-off bookings, event tickets and coupons all run through the same path, which is what makes revenue reporting one number.

What happens after launch?

Thirty days of support are included, along with documentation and a handover session. After that you can keep us on monthly for features and support, or run it yourself — plenty of clients do, which is the point of giving you the code.

Tell us what your members need

Leave the call with a recommended stack, a timeline and a firm price range. Thirty minutes, no deck.

Book the call

Thirty minutes, free. You leave with a recommended stack, a timeline and a firm price range — whether or not you build it with us.

Book a free 30-min scope call

Or get a fixed-price estimate by email

No newsletter, no sequence. We reply with a range and the questions we still need answered.