333 Accountants reviewing construction project plans with a client
ACCA · AAT · HMRC Approved

We shape your finances the way you shape a buildSolid foundations, Built to last.

A senior-led UK practice offering accounts, tax, bookkeeping, payroll and business planning for sole traders and growing companies. Plain English. No surprises.

Qualified, certified & platform-accredited

ACCA
AAT
HMRC
Xero
IRIS Software
ACCA
AAT
HMRC
Xero
IRIS Software
Who we help

Accounting built for the scale of your projects.

We support ambitious businesses from first invoice to first million, and beyond. Whether you're solo, scaling a team or juggling multiple projects, our senior accountants keep the numbers clear and the advice practical.

  • Sole traders
  • Small-to-medium companies
  • Startups and new ventures
  • Construction
Is that you? Two figures side by side: one handing over a wad of notes, the other dropping notes and coins on the floor. Getting paid isn't the same as keeping it.

Profitable on paper, tight in the bank? That's the bit we fix.

Why 333

Built for the way builders actually work.

Specialised in construction

Contractors, subbies and design-and-build firms. We know the sector, not just the software, so you are not explaining retentions or CIS from scratch.

Qualified accountants

ACCA and AAT qualified, and a named senior on your account. Not bookkeepers charging accountancy fees, and not a junior learning on your numbers.

Monthly subscription plans

One fixed monthly fee, agreed up front and held for the year. No shock invoices, no hourly clock, no charge for picking up the phone.

Sound familiar?

You know last year's profit. Not which jobs made it.

Extras done on a nod that never reached an application.

Retentions on finished jobs, and nobody chasing them.

Subbies deducted on materials as well as labour.

Busy all year, and the bank still looks tight.

An accountant who tells you what happened nine months ago.

None of this is unusual. All of it is fixable.

Book a free consultation
The 333 team
The team

Small by design. Senior by standard. On your side, always.

Deliberately small, by design, so you get a named accountant, not a queue. Every engagement is led by a senior with real industry experience.

ACCA qualified
AAT qualified
Meet the team

Every business has a paper trail.
We keep it straight.

Find us

Visit our office.

Based on the Sussex coast and working with clients across the UK. Drop in by appointment, or reach us by phone or email.

Free 30-minute consultation

Talk to an accountant who actually understands your job.

We'll review where you are, spot any tax you shouldn't be paying, and give you a tailored quote. No obligation.