Case study · Home services

Stiltz: a Fractional AI Officer for global growth.

Since October 2024, Fifty One Degrees has been Stiltz's Fractional AI Officer: strategy plus hands-on delivery for the home lift manufacturer as it scales across the UK, USA, Canada and China. Production data warehouses in three markets, machine learning targeting validated against live campaigns, and AI agents working inside the business.

Stiltz case study
51.4°N · 0.1°W
Client
Stiltz
Sector
Home lift manufacturing and installation
Engagement
Fractional AI Officer, since October 2024
Stack
BigQuery, dbt, Fivetran, XGBoost, Gemini, Claude
Headline result
7.86x targeting lift, validated on live campaigns
The challenge

Scaling four markets on data the business could not yet trust

Stiltz designs, manufactures and installs home lifts that give people easy access between floors of their own homes, with operations spanning the UK, USA, Canada and a manufacturing base in China. Growth at that scale created a familiar problem: critical numbers lived in NetSuite, spreadsheets and disconnected tools, targeting decisions leaned on intuition, and there was no senior AI and data leadership inside the business to change it. Stiltz needed a partner who could set the strategy and then build it, not hand over a slide deck and leave.

What we built

A data and AI estate, not a one-off project

A multi-market data warehouse estate

Governed BigQuery warehouses are live in production for the UK, USA and Canada, with Rest of World tables deployed and China in build. Data flows in daily from NetSuite, GA4 and call tracking via Fivetran, is transformed and tested in dbt, and powers an automated daily CEO report, the UK sales matrix and board reporting.

Campaign-validated targeting models

XGBoost models score UK postcodes and households on their likelihood to contain a home lift customer, validated against live direct mail campaigns rather than holdout theory alone. The top 1% of scored postcodes shows a 7.86x higher customer rate than baseline, and the top 10% of scored households captures around a third of all known customers.

An AI technical agent

A natural-language agent, built on Gemini, that answers complex product and technical questions from Stiltz's engineering documentation in under a minute, putting specialist knowledge in reach of the whole team.

A planning-application lead agent

An agent that scans UK planning applications for accessible-home signals and alerts the sales team, turning public planning data into a source of qualified leads.

Claude, connected to the business

An MCP server connects Claude to the Stiltz data warehouse and technical agent with authorisation guardrails, so the team can ask questions of its own data in plain English. A company-wide Claude rollout is now under way.

How we built it

Governed data first, models and agents on top

Warehouse before models

Every model and report stands on the governed warehouse: daily ingestion, dbt transformations with automated testing, and documented definitions the business has signed off.

Validated against reality

The targeting models were proven against real direct mail campaigns with a six-month conversion window, not just offline metrics, before Stiltz committed spend to them.

Definitions agreed with the people who own them

Reporting changes, like the definition of a sat sales appointment, were validated against the sales team's own counts and approved by the head of UK sales before going live.

Guardrails on AI access

The Claude MCP connection carries authorisation guardrails, so AI access to company data stays scoped to what each user should see.

How we work together

Fractional AI Officer: strategy that ships

Fractional AI Officer is the contractual role, not a marketing phrase: strategic advice and planning plus hands-on delivery against a jointly agreed roadmap. A Fifty One Degrees data scientist is embedded full-time with Stiltz, with senior oversight from the founders, and the roadmap runs on weekly working sessions with Stiltz's leadership.

01
Roadmap

Agree the AI and data roadmap with Stiltz's leadership across growth, operations and architecture tracks.

02
Embed

Place a full-time data scientist inside the team, with senior practitioners overseeing strategy and the hardest problems.

03
Build

Deliver the roadmap hands-on: warehouses, models, agents and reporting, shipped into production.

04
Validate

Prove each build against live business data, from campaign-validated models to sales-team-approved reporting definitions.

05
Operate

Run and iterate what has shipped: daily reporting, model refreshes and agent improvements as the business changes.

06
Expand

Extend what works to the next market: UK first, then USA and Canada, with China in build.

Outcomes

What the partnership has delivered

7.86x
higher customer rate in the top 1% of postcodes scored by the targeting model
3
markets with production data warehouses, powering daily executive reporting
21+
months embedded as Fractional AI Officer, and counting
What's next

From data foundation to AI-first operations

The China data warehouse is in build, completing coverage of every Stiltz market. A company-wide Claude rollout is under way, with the MCP server opening the warehouse to the whole team, and the growth work is turning to the USA: market analysis, personas and targeting to support Stiltz's expansion, alongside marketing attribution modelling across the group.

Fifty One Degrees is Stiltz's Fractional AI Officer: one partner covering AI strategy, data engineering, machine learning and AI agents, embedded with the team for over 21 months and counting.Fifty One Degrees x Stiltz
FAQ
What does Fifty One Degrees do for Stiltz?

Fifty One Degrees is Stiltz's Fractional AI Officer, a contractual role held since October 2024. It combines AI and data strategy with hands-on delivery: production data warehouses for the UK, USA and Canada, machine learning targeting models, AI agents and a company-wide Claude rollout.

What is a Fractional AI Officer?

A Fractional AI Officer gives a business senior AI and data leadership without a full-time executive hire. For Stiltz, Fifty One Degrees sets the AI roadmap with leadership, then builds it: an embedded data scientist works inside the team full-time, with senior oversight from the firm's founders.

What results have the machine learning models delivered?

The UK targeting models were validated against live direct mail campaigns. The top 1% of postcodes scored by the model shows a 7.86x higher customer rate than baseline, and the top 10% of scored households captures around a third of all known Stiltz customers, so marketing spend goes where it converts.

What data infrastructure did Fifty One Degrees build for Stiltz?

Governed BigQuery data warehouses, live in production for the UK, USA and Canada with China in build. Daily ingestion from NetSuite, GA4 and call tracking runs through Fivetran, dbt handles tested transformations, and the estate powers an automated daily CEO report, sales reporting and board packs.

Can Fifty One Degrees act as a Fractional AI Officer for my business?

Yes. The model suits businesses that need senior AI leadership and delivery capacity without building a team first. Book a Discovery Call and we will map what an AI and data roadmap would look like for your business.

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Next step

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Book a 30-minute Discovery Call and we'll map an AI and data roadmap for your business, from first warehouse to production agents.