01 / Engineering
Software product development
Web applications and SaaS MVPs built with TypeScript, Postgres, and edge runtimes. Shipped iteratively, owned end to end.
01 — The GroupEst. 2026 · London
Orchestrating perpetual legacy.
We design, build, and run software ventures — and keep them running for years.
Perpetually Limited is a UK group company that designs, ships, and operates software ventures — our own products, and a handful of partner builds we choose carefully. Practical engineering, deliberate scope, long planning horizon.
01 — The Group
A group company for durable software.
Perpetually owns and operates a small group of software ventures. Most are internal — products we design, build, and run ourselves. A few are external builds we take on each year for founders and teams whose work we trust.
We are deliberately small, deliberately careful, and deliberately boring with the technology underneath. That is what keeps the products working long after launch.
02 — Capabilities
What we offer.
02 / Web
Web development
Marketing sites, content platforms, and bespoke web apps. Fast, accessible, search-friendly, and easy to maintain.
03 / Infrastructure
DevOps & infrastructure
Deployment pipelines, observability, on-call rotations, and uptime budgets we actually track. Boring on purpose.
04 / Automation
Automation & AI workflows
Internal tooling, scheduled jobs, and AI-assisted pipelines that remove repetitive operational work.
05 / Operations
Product operations
Day-to-day operation of live software: support workflows, billing, analytics, incident response, and roadmap discipline.
06 / Handover
Acquisition-ready systems
Documented codebases, clean ownership, and architecture a third party can pick up without surprises.
03 — Operating Model
How we operate.
1
Build.
We design and engineer software end to end — interfaces, APIs, data models, and infrastructure — using a small set of practical tools we trust.
Core stack
- TypeScript · React · TanStack
- Postgres · Drizzle · Redis
- Cloudflare · Fly · Vercel
- Stripe · Resend · Inngest
2
Manage.
We run what we ship. On-call rotations, observability, support workflows, and the operational discipline that keeps live systems healthy.
Live operations
- 24/7 uptime monitoring
- Incident playbooks & postmortems
- Support routing & SLAs
- Quarterly architecture review
3
Scale.
We expand what works and quietly retire what doesn't. Decisions are made against the goals we set in scope, not against vanity metrics.
Growth discipline
- Cohort & retention analytics
- Pricing & packaging iteration
- SEO & lifecycle ops
- Capacity planning
4
Hand off.
Every venture is structured so a partner, investor, or acquirer can step in without friction — codebase, infrastructure, and IP held cleanly.
Transfer-ready
- Decision logs & ADRs
- Architecture diagrams
- Run-books & on-call docs
- Clean licensing & IP
04 — Ventures
What we build.
Six categories of software we develop and operate — internal ventures and selected external builds. Each one shipped, monitored, and held to the same standard of review.
01 · Subscription productLive
SaaS tools.
Focused subscription products for narrow professional audiences. Pricing that respects the customer, churn we actually understand.
MRR
£42.6k
Net retention
118%
P95 latency
94ms
02 · BookingOperated
Local business platforms.
Booking, scheduling, and operational web apps for service businesses.
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03 · Background jobsAlways-on
Automation systems.
Background workers, scheduled jobs, and integrations that keep the wheels turning.
$ job ingest.run --since=24h
✓ 14,302 records processed
✓ 0 retries, 0 failures
$ job billing.reconcile
✓ ledger balanced · 00:01:42
04 · Content platformSEO-ready
Marketing websites.
Branded sites and content platforms designed to convert without overpromising.
perpetually.app / ventures
A group company for durable software.
05 · Internal toolingReal-time
Data dashboards.
Internal reporting tools that turn raw data into operational decisions.
Ingest
→Transform
→Serve
06 · Language modelsIn production
AI-enabled workflows.
Practical applications of language models inside real business processes — drafting, classification, retrieval, and review — wrapped with the same operational discipline as any other system we ship.
Summarise this contract — flag termination & IP clauses.
Found 2 termination clauses (§4.1, §11.3) and 1 IP assignment clause (§7). Posted draft note to Linear · DOC-218.
Approve and notify counsel.
Done. Email queued · audit log updated.
05 — Built for Review
Built with commercial review in mind.
Every venture we build is structured so a partner, investor, or acquirer can assess it without surprises. That is engineering discipline, not a sale notice.
Clean ownership
No entangled licensing.
Code, infrastructure, and IP held inside Perpetually Limited — no shared dependencies on other businesses we run.
Documented systems
Maintained as we go.
Architecture diagrams, run-books, and decision logs kept current — not assembled retrospectively when someone asks.
Sensible architecture
A small set of trusted tools.
A new engineering team can read the codebase without a translator. Boring stack, predictable systems, low surprise.
06 — Process
Five steps from idea to production.
01 — Discover
Discover.
We start with the problem, the audience, and the commercial context — before any code is written.
02 — Scope
Scope.
We agree a clear first cut: what ships, what waits, and how we will know it worked.
03 — Build
Build.
We design and engineer in short iterations, with working software in front of you each week.
04 — Operate
Operate.
We deploy, monitor, and support the system in production — uptime, performance, and incidents included.
05 — Review
Review.
We measure against the goals set in scope, and decide together what to extend, refine, or retire.
Where to start
Pick the path that fits.
Three ways people come to us. Each one routes the conversation to the right starting point.
If you're a founder
“I want a careful first build.”
Three to five external builds a year. We help you scope to the smallest thing that proves the business.
Open a build conversationIf you're a partner or investor
“I want to assess what you operate.”
We share a structured overview under NDA: architecture, ownership, uptime, and revenue shape.
Request a review packIf you're a tech lead
“We need a careful collaborator, not an agency.”
Embed-style engagements where we run alongside your team. Boring infrastructure, well documented.
Start a collaborationContact
Tell us what you're working on.
A short note is enough. We read everything ourselves and reply within two working days.
Office hours: 09:00–17:00 UK time.
Where to start
Pick a starting point, or skip straight to the form.
Or write directly to hello@perpetually.app.