- About
You get Sibo, not an account manager
You deal with Sibo. She is your point of contact throughout, she is the one who answers the phone, and what her clients rely on is a keen eye for detail. Where a piece of work needs expertise the practice does not hold, she works with a trusted network of accountants, tax advisers, commercial legal advisers and other professionals. She has worked in accounting and finance since 1997 and with small businesses since 2011, and the combination is the whole point: the bigger organisations taught the controls, small business taught what actually helps.
One of the strongest skills I have developed through my experience is maintaining accurate accounting records, and identifying when something does not look right or does not agree.
Why it is called Tickdoc
The four of us were round the dinner table trying to think of a name for the business. The children were seven and three, and they asked what I actually did all day.
I told them I spend a lot of my time ticking things: checking numbers, checking tasks, checking documents. That is where the tick came from. They asked what I was ticking, and after a bit more discussion round the table we got to Tickdoc.
Sibo Armstrong, September 2014
The name drawn: a ring that closes, and a tick passing through the one gap left open for it.
- The ring
- Represents structure.
- The tick
- Represents checking and completion.
From banking in 1997 to an accounting practice in Eastleigh
Banking, then corporate roles, then small business. Accounting has been the one consistent thread since 1997, and every stage of it put something into the way this practice runs.
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1997
Began my accounting career as a junior accounts clerk at a bank, studying towards a banking qualification alongside the job.
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2002
Moved to the UK and continued developing my career alongside further study, building experience across finance, accounting and business administration.
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2005 to 2008
Joined Peverel OM Ltd, a major residential property management company later part of FirstPort, in my first UK corporate role. The role included maintaining management accounts and working alongside the in-house accounting team, while I studied part-time for a BA (Hons) Business Administration at the University of Hertfordshire.
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2008 to 2011
Relocated to Southampton and joined Aviva Health UK as a Corporate Finance Controller.
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2011
Started working independently with local small businesses, maintaining bookkeeping records, preparing management accounts and working alongside their accountants. This gave me first-hand experience of the financial information business owners actually need throughout the year.
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September 2014
Founded Tickdoc Ltd and built it from nothing, on cloud accounting from day one.
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Today
Supporting business owners with their accounting, compliance and financial records, drawing on everything built since 1997.
AML supervision, insurance and the experience behind the practice
What sits behind Tickdoc is practical experience. Accounting and finance since 1997, beginning in banking, then corporate roles at Peverel OM Ltd and Aviva Health UK, then small businesses from 2011 and Tickdoc Ltd from 2014, built from nothing and run by me ever since. A BA (Hons) Business Administration from the University of Hertfordshire, read part-time alongside a full-time job, sits under all of it.
Payroll is done here rather than sent elsewhere: I am trained in payroll, and payroll processing is handled in-house.
Where a piece of work needs expertise the practice does not hold, I work with a trusted network of accountants, tax advisers, commercial legal advisers and other professionals.
Everything in the panel beside this carries a reference you can check for yourself where a public register is available.
What you can check
- AML supervision HMRC XVML00000208643
- ICO registration Registered ZB041083
- Companies House ACSP Authorised agent AP009354
- Trading since September 2014 Company 09237448
- Xero Bronze Partner
- QuickBooks Gold Partner
- FreeAgent Partner
- Professional indemnity Insured Simply Business
Sibo also holds a basic DBS check, which Tickdoc chooses to renew every three years; the current certificate was issued on 17 September 2026. There is no public register to look that one up on, which is why it is not in the grid.
Ten years with one client, in his own words
A client since 2016: bookkeeping, year-end accounts, Corporation Tax and CT600, payroll and Self Assessment, as the business has changed shape around them. He left a five-star review in 2018, two years in. He is still here, ten years later.
Sibo has looked after my accounts since 2016 across three businesses; she is someone I can talk a project through with so I understand the accounting and financial implications before I make a decision, rather than someone who only files the paperwork afterwards.
One of the strongest skills I have is keeping records accurate, and knowing when something does not look right or does not agree.
That is the whole practice in a sentence. If the bookkeeping underneath is right, the year end becomes straightforward. If it is not, everything built on top of it inherits the problem, and it usually surfaces at the worst possible moment.
Xero, QuickBooks and FreeAgent, and why software is not the answer on its own
Tickdoc has used cloud accounting since 2014. Xero, QuickBooks and FreeAgent day to day, and over the years QUBE, Oracle, PPMS, Sage and Microsoft 365 in corporate settings.
Technology should make the work easier and it does. But software is only as good as what goes into it, and you still have to understand the accounts well enough to notice when something is wrong. A bank feed that has quietly created a second account rather than reconnecting the first will reconcile perfectly and still be wrong.
Working with tax advisers and other accountants
You deal with Sibo throughout. That is one of the advantages of working with a small practice, and it is one of the reasons clients choose one. Where other professionals are involved in a piece of work, engagement letters set out who does what before any work starts.
It works the other way round too. Tax advisers and other accountants bring us the accounting, bookkeeping and software work for their own clients, so working alongside other professionals is ordinary here rather than an exception.
The we on this site is deliberate. From September 2026, an apprentice supports routine practice work under supervision. You may hear from him where information is missing, but Sibo remains your main point of contact.
The practice runs from Eastleigh and most clients are within half an hour of it, in Southampton, Chandler's Ford, Winchester and around Hampshire. The rest are anywhere, because cloud accounting made that a much smaller question than it used to be.
Outside work: swimming, running and, more recently, the gym. Treasurer of a local charity.
Talk to the person who will do the work
There is no switchboard and no account manager. Emails are answered within one working day and calls are returned the same day or the next.
Or read what her clients say: all eight Google reviews, each with her reply.
