By invitation · Full release September 2026
Property evidence,
sourced and dated.
Your team assembles property evidence from nineteen sources by hand. Arrowsmith returns the answer, every source attributed.
See the answer land
The same governed answer, wherever your team works.
Arrowsmith plugs into the tools your teams already live in, select a surface to see how this works when connected with 19 UK Government data sources.
Instructions
See it work
One question. Six sources. One sourced answer.
Ask in the channel your team already uses. Arrowsmith reconciles the answer from 19 UK Government data sources and returns it with every citation in line.
Microsoft Teams
@arrowsmith what is the covenant strength on Smith Holdings Ltd?
Arrowsmith
Smith Holdings Ltd. Status active. Net assets £14.2m. Operating profit £3.8m on turnover of £41.2m. No insolvency events in the last 10 years. Covenant scored Strong (A2) on the standard methodology.
Sources: Companies House, filed accounts dated 31/12/2024. Insolvency Service register, checked today.Document attached.
Three official sources, reconciled and scored. One answer, every source named and dated. The next question runs the same way, in the same channel.
The stack behind every answer
Enterprise integrations. Every major model. Official UK data.
Arrowsmith plugs into the tools your teams already live in, draws on every leading foundation model, and grounds each answer in authoritative UK government sources accessed through the surface of your choice.
Works with the tools you already use
- Microsoft TeamsNative channel delivery
- SlackNative channel delivery
- Web dashboardYour bespoke workspace
- REST APIEnterprise integration
Powered by every major LLM
- OpenAIGPT-5 family
- AnthropicClaude family
- GoogleGemini family
- PerplexityEnvironment
Grounded in official UK data
- UK GovernmentGOV.UK APIs · client
- HM Land RegistryTitle · ownership · charges
- Ordnance SurveyAuthoritative geography
- Environment AgencyFlood · contamination
What your team can ask
Arrowsmith delivers answers to questions in minutes.
Ask Arrowsmith
InTeams,Slack, or your workspace.
Every answer attributed. Every source dated. Audit-ready.
What you unlock when you join
Guaranteed early access. Materials in your inbox immediately.
The same materials whichever path you take. In your inbox the moment you submit.
01
The data stack
Nineteen UK Government APIs, mapped. Every source, the organisation that runs it, and the property task it answers. The technical foundation Arrowsmith is built on.
02
The roadmap
From now to UK default. The build plan to September 2026 and what ships when, by surface, Teams, Slack, dashboard, API.
03
The commercial terms
Founding cohort and early access terms in full. Pricing, seats, what's included, what's exchanged. No hidden mechanics.
Join Arrowsmith
Two ways to get access
Choose the one that fits.
Founding partner positions
2 reserved · 10 open · 12 total
- 01
- 02
- 03
- 04
- 05
- 06
- 07
- 08
- 09
- 10
- 11
- 12
For firms
Founding partner position
- Twelve founding-partner positions across institutional asset management and surveying.
- Named permanently in every launch moment, every research publication, every UK Government and standards-body briefing.
- Five free seats for life. 25% off every additional seat for life.
- Methodology shaped with your team. Logo and named case study in exchange.
Who this is for
Institutional asset managers and surveying practices.
For individuals
Early access
- Personal access to Arrowsmith. Full product. Same data stack. Same UK Government APIs. Same Teams and Slack delivery.
- Monthly feedback sessions with the founding team. Help shape the tool you're using.
- Continuity through launch. Your access carries through to general availability and beyond.
- By application while we ship.
Who this is for
Senior property professionals using Arrowsmith personally.
Working at enterprise scale?
Maybe* infrastructure can be deployed inside your existing environment, integrated with your security, data and productivity stack. The same Arrowsmith platform, custom-shaped to embed alongside the tools your team already uses.
Who is Arrowsmith
Arrowsmith is built by Maybe*.
Maybe* infrastructure already runs inside a global automotive brand, UK Government AI programmes, and the UK's largest independent construction data platform. Arrowsmith brings the same infrastructure to UK property.

Polly Barnfield OBE
Founder & CEO, Maybe*
Awarded the OBE for services to digital innovation.

Nigel Jobson MRICS
Project Lead, Arrowsmith
Chartered surveyor. Former Head of Group Property, SuperGroup Plc.