Your expertise, now
a product you sell.
A recurring-revenue SaaS product built on your expertise and your data, sold to your existing customers or to new ones. Co-built with us, and funded the way that suits you: pay for the build outright and own it, or reduce the upfront investment through a Revenue or Equity Partnership.
Co-built · Yours to own · Revenue or Equity Partnership optional
A method you deliver by hand.
- Expertise clients pay for, one engagement at a time
- Revenue that stops when the project ends
- Years of proprietary data going unused
A product, proven before it scales.
- A product brief and term sheet from the Hypothesis stage
- An MVP to first customers, to prove they will pay
- Payments, multi-tenancy and a model that keeps improving
- Launched together, and built on after launch
Recurring revenue, in a product you own.
- A live SaaS product with paying customers
- Your method delivered in software, every time
- Owned outright, or with less upfront cost through a Revenue or Equity Partnership
- A technical partner who stays on after launch
Everything you need to turn what you know into recurring revenue.
A product brief and a partnership term sheet.
The Hypothesis stage sets the product vision, business model, ideal customer and how the build is funded, so both sides know what is being built and who owns what.
- product
- a self-serve assessment customers run themselves
- ideal customer
- mid-market operations teams
- pricing
- £390 a month per team
- funding
- paid as a build to the prototype; a Revenue or Equity Partnership is available from the production build onwards
An MVP that proves people will pay.
The first version ships to first customers fast, to validate that they will pay before anyone spends on production scale.
- pilot customers
- 9
- paying
- 6, at the full price
- price tested
- £390 a month — held
- next
- the production build
Your moat, built in.
Your methodology, your data and your customer relationships go into the product, which is what makes it hard for a generic tool to copy.
- methodology
- your scored model, twelve years in use
- data
- 4,000 historic assessments
- channel
- your existing client base
- copyable?
- not by a generic tool
A production product that holds up to growth.
Payments, multi-tenancy, scaling, polished UX and a model that keeps improving: the product your customers rely on, not a prototype.
- payments
- Stripe, monthly and annual
- tenancy
- multi-tenant, one account per customer
- sign-in
- single sign-on
- model
- retrained monthly on new assessments
A technical partner who stays.
We launch with you and keep building as the product evolves. Most clients fund the build and own the product outright; if you would rather reduce the upfront investment, a Revenue or Equity Partnership is available from the Formulation stage (the production build) onwards, and ties our return to the product working.
- Delivery Partnership
- you fund the build and own 100% of the product
- Revenue Partnership
- less upfront; we take a share of revenue
- Equity Partnership
- less upfront; we take a minority stake
- build
- ongoing after launch, whichever you choose
Stop selling hours.
Start selling the product.
Productising your consultancy means turning a repeatable, high-value part of what your experts do into a software product your customers pay for directly — recurring revenue instead of billed hours. The AI SaaS Product Build is how Ferrous Labs co-builds that product on your own expertise and data, takes it to paying customers, and keeps improving it after launch. If you are still weighing whether the method is ready, our guide on how to turn your consultancy into a software product walks through the five stages and the order that matters, before any of this becomes a build.
- Revenue tied to billable hours
- Growth capped by how many people you can hire
- Your method delivered by hand, client by client
- Years of proprietary data sitting unused
- No technical team to build a product with
- Recurring revenue alongside your services
- A product that scales without adding headcount
- Your method delivered in software, every time
- Your data turned into a defensible moat
- A technical partner who stays on after launch
The Science of AI SaaS™
The product compounds, not stalls. We launch with you and stay invested. The same method runs through every Ferrous Labs build.
- product
- self-serve assessment
- ideal customer
- mid-market ops teams
- pricing
- £390 / month per team
- funding
- build · partnership from Formulation
HypothesisDefine the product
Product vision, business model, ideal customer and partner-deal scope. The output is a product brief and a partnership term sheet.
ship fast · validate before production scale
ExperimentMVP build
Designed to ship to first customers fast, to validate that they will actually pay before we go to production scale.
the product that holds up to growth
FormulationProduction product
Payments, multi-tenancy, scaling, polished UX and an evolving model. The product that holds up to growth.
| month | customers | MRR |
|---|---|---|
| 1 | 9 | £2.7k |
| 6 | 34 | £9.8k |
| 12 | 62 | £18.4k |
we launch with you · the product compounds
ExecutionLaunch + ongoing build
We launch with you, and we add features as the product evolves. The product compounds, not stalls.
How the build runs
Scoping call first · Co-built · Revenue or Equity Partnership available from the production build
Scoping call
A co-founder tests whether your expertise is productisable, and whether a partnership could fit later.
Hypothesis → Experiment → Formulation → Execution
A product brief and term sheet, an MVP to first paying customers, then the production product.
Launch + ongoing build
We launch with you and keep adding features as the product grows.
What you walk away with
A product in market, customers paying, and a funding model you chose.
Related reading: how expert businesses build recurring revenue, SaaS unit economics for consultancies and proof-of-demand validation.
AskPhi turned a behavioural-science thesis into a SaaS product with paying clients in three months.
A Claude Code prototype that could not be shown to customers became a production-grade, multi-tenant product with four core workflows and two active revenue streams.
Read the AskPhi case study- status
- live, with paying clients
- product
- MLP with 4 core workflows
- revenue
- 2 active revenue streams
Productising your expertise — common questions.
How do you turn a consultancy or area of expertise into a SaaS product?
Productising a consultancy means turning a repeatable, high-value part of your expert work into software your customers pay for directly, rather than buying your time. Ferrous Labs builds that product on your own domain knowledge and data using a four-stage method, The Science of AI SaaS™: a short Hypothesis stage to define the product and business model, a fast MVP to prove customers will pay, a production build, then launch and ongoing development. The result is a live, recurring-revenue product — not a prototype.
What is the AI SaaS Product Build service?
The AI SaaS Product Build is a co-built recurring-revenue software product built on your expertise and data, which you own outright or, if you prefer to reduce the upfront investment, fund through a Revenue or Equity Partnership. Ferrous Labs contributes the engineering and product capability; you contribute the domain knowledge and customer access. The output is a working SaaS product your customers pay for monthly — not a prototype, and not a tool for internal use only.
What kind of business is a SaaS product build suited to?
It suits businesses with a repeatable, high-value workflow that their customers also need to solve. Common fits include specialist consultancies that want to productise their methodology, professional services firms with proprietary assessment or scoring frameworks, and domain experts whose knowledge is currently locked inside a small number of senior people and cannot scale without software.
Does Ferrous Labs take equity in the SaaS product?
Not always. Ferrous Labs co-builds the product, and you choose how to fund it: pay for the build in full and own the product outright (a Delivery Partnership), or reduce the upfront investment through a Revenue Partnership or an Equity Partnership, where Ferrous Labs takes a share of revenue or a minority stake instead. Both are available from the Formulation stage (the production build) onwards; the Hypothesis and Experiment stages are paid as a build. The specific arrangement — revenue share or equity percentage, and buyout options — is agreed before the production build and documented in a joint venture agreement. Whichever structure you choose, both parties are incentivised to make the product succeed.
Can I build a SaaS product without a technical co-founder?
Yes — a non-technical founder can build a SaaS product by partnering with a specialist AI engineering studio rather than recruiting a full-time CTO. Traditionally, SaaS required either an internal engineering team or a technical co-founder who took significant equity and led the build from the inside. Ferrous Labs provides a structured alternative under The Science of AI SaaS™: acting as your technical co-founding partner — contributing AI engineering, ML development, product design and post-launch iteration across four defined stages (product definition, MVP, production build, then ongoing development). You supply domain expertise, existing customer relationships and market direction; Ferrous Labs supplies the technical layer and stays on through launch and growth, funded as a straightforward build or, where you want to reduce the upfront investment, through a Revenue or Equity Partnership. No in-house engineering hire required. According to Zuora's Subscription Economy Index 2024, subscription businesses have grown 3.4× faster than the S&P 500 over the past 12 years — the compounding upside available to domain experts who get to market without first building an engineering team.