Founded in 2018.
Quietly serious
by design.
AAT-licensed · Thornbury based
Year-round, plain-English
Sowilo · Elder Futhark
*sōwilō · the sun
Patience, in old
script.
The Sowilo rune (ᛋ) is the last of the second aett in the Elder Futhark, the older runic alphabet used across Germanic and Scandinavian Europe from roughly 150 to 800 CE. Its name comes from Proto-Germanic *sōwilō, meaning “sun”; the same character carried through into the Anglo-Saxon Futhorc as Sigel and surfaces elsewhere as Sól, Sig, and Sowelu. It is at once the runic letter S and a sigil of the sun in a single stroke — carved into stone monuments, weapons, jewellery, and the wood of longships across the Norse world.
In Norse cosmology Sowilo belongs to Sól (also called Sunna), the goddess who drives the sun’s chariot across the sky pursued by the wolf Sköll — fated to catch her at the end of the world. Two Sowilo glyphs crossed form the rotating sun-wheel motif that recurs across pre-Christian Indo-European cultures, a visual shorthand for the sun’s daily return and the longer seasonal turning of the year.
For the Vikings the rune was practical as much as sacred. Norse seafarers carried it on long voyages as a marker of navigation and safe return — the sun being the chief celestial reference for open-water crossings before instruments — and it appears on weapons, shields, and runestones across the Scandinavian world as a sigil of victory, guidance, and light recovered from darkness. In an alternate reading the same shape was understood as lightning: a small bolt of decisive, patient-then-sudden force.
The wider runic tradition reads Sowilo as wholeness, vitality, purification, and the patient compounding of small, well-kept things. It felt right for an accounting practice whose best work is rarely dramatic and almost always cumulative — the kind of work where consistency and quiet attention beat headline-grabbing wins, and where a year of well-kept books is worth more than any single clever scheme.
Sowilo was founded out of frustration with the larger national firms — stopwatch billing in six-minute increments, thoroughness silently punished, mystery handovers between unfamiliar names. We wanted to run an accounting practice the way clients were already telling us they wished one ran: fixed-fee, personally led, plain-English, and patient over the long arc of a business rather than reactive in the last week of January.
We keep three rules. We do not bill by the six-minute increment. No material decision leaves our hands without qualified review. And we treat HMRC correspondence as the litmus test of a well-run practice — quiet years are good years.
The name came before the trade. We registered Sowilo Investments before the first client arrived — a small bet on a particular kind of work. The Elder Futhark rune carries associations beyond “sun”: illumination, sight, the patience of a thing that returns dependably each morning. We’ve grown into the name more than we picked it.
Four rules, kept without exception.
Personally led, always
Every engagement runs through a qualified accountant. Every material letter carries an accountable name.
Plain-English first
Before a letter goes to HMRC or Companies House, you receive a two-paragraph summary. No jargon shields, no ambiguity.
Year-round counsel
We forecast tax quarterly and intervene before the cliff. Year-end is administration, not surprise.
Fixed engagement fees
Quoted at outset, reviewed once a year. Stopwatch billing rewards inefficiency.
Licensed by the AAT — partnered with the platforms our clients actually use.
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Licensed Practice
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Certified Partner
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Software Partner
Every necessary
standing — filed,
annually checked.
AAT
Association of Accounting Technicians
Licensed practice · MAAT/FMAAT
AAT MLR
Money Laundering Regulations Supervision
Supervised under MLR 2017
HMRC
Tax Agent & Adviser
Agent code 7C***
ATT
Association of Taxation Technicians
Two members
ICO
Information Commissioner's Office
Reg. ZA******
PII
Professional Indemnity Insurance
Insured to £2m
Have a brief in mind?
A short, candid call with a qualified accountant — usually within one working day. No prelude with a salesperson, no obligation.