SOC 2 auditors in London

What a London company should settle before it hires a SOC 2 audit firm: which privacy statute already binds it in Ontario, who locally is asking for the report, and what the examination costs in Canadian dollars.

Last reviewed 2026-08-31Written by Jacob Masse, TrazTech Inc.

A London company can hire any CPA firm in Canada for its SOC 2 examination, and that firm does not have to sit in Ontario. It does have to be registered with a provincial CPA body, licensed for assurance work, and independent of whoever built the controls. Fieldwork for London clients runs remotely almost everywhere. The useful question is not who is nearby, but who has audited an Ontario company shaped like yours, understands PIPEDA, and will price the engagement in Canadian dollars.

London's digital health and insurance employers mean PHIPA and customer-imposed security schedules drive most local compliance work, often ahead of any formal certification requirement.

London in one table

Everything below follows from these six rows. Two of them move the work most: PIPEDA is already binding on an Ontario business, and the London sectors listed decide what a buyer's security schedule will ask you to prove.

How PIPEDA changes a London scoping decision

The Privacy category inside SOC 2 is an AICPA construct. Passing it does not discharge PIPEDA, and complying with PIPEDA is not tested by the auditor unless a control you wrote happens to cover it. For most London companies the answer is Security criteria only, with PIPEDA run as its own project alongside. The exception is an insurance buyer who named the Privacy category in writing, which in Ontario is rare.

Where the two meet is the data inventory. What personal information you hold, where it lives and who touches it is the first artefact PIPEDA expects of an Ontario organization, and the first thing a London auditor asks for when scoping the system description. Build it once. If your customers include manufacturing operators, or anyone acting for a health custodian in Ontario, extend that inventory to cover PHIPA before a questionnaire forces it.

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Who asks a London company for a SOC 2 report

Local demand is shaped by digital health, and in London the request nearly always arrives as a schedule attached to a contract rather than as a rule. Somebody in sales forwards it, and for an Ontario supplier the report becomes a condition of closing. The deadline is therefore a customer's deadline. That one fact decides whether a London company goes straight to a Type 2 or buys time with a Type 1, and the deadline back-calculator works out which is still reachable from today.

Buyers in insurance tend to ask later in the cycle and in more detail, and buyers in manufacturing more often send a questionnaire the report only partly answers. Ask which report type and which Trust Services Criteria before scoping anything. Companies around London spend months on a Type 2 because the phrase "SOC 2" reached them second hand, when a Type 1 would have closed the digital health contract.

What a SOC 2 examination costs from London

Audit fees barely move by city, since assurance work is priced on engagement hours rather than Ontario wage rates. A firm quoting a London client on Security criteria with one production environment lands in these Canadian dollar bands.

The examination is roughly a third of what a first SOC 2 costs a London company. The rest is readiness support, a platform if you need one, a penetration test, and your own team's hours, which no Ontario firm will quote you. The cost breakdown takes all five lines apart. What does vary around London is which firm you end up with. Practices in smaller Ontario markets often quote at the low end and know the local digital health buyers well, while a national name carries recognition that some enterprise reviewers care about and costs several times more for the same opinion.

Shortlisting audit firms from London

Send three firms one written scope: headcount, systems in scope, criteria, report type, and the date a customer in digital health needs the report by. Then work through this list with each of them before anybody in London signs anything.

• Who signs the opinion, and what has that partner audited that resembles a London company selling into digital health?
• Is the fieldwork done by the firm you contract with, or subcontracted? An Ontario practice that subcontracts should say so in writing.
• What is the renewal fee for years two and three, in Canadian dollars, before a London client signs year one?
• Will the firm raise PIPEDA on its own, or run an American playbook that never mentions Ontario or PHIPA?
• How does it take evidence, and how long from the end of fieldwork to a report a buyer in insurance will accept?

Walk away from a fixed price quoted before anyone asked what is in scope, and from any firm promising a clean opinion on an audit it has not performed. Keep readiness and audit with separate firms: independence is the rule, and a reviewer at a customer in insurance who spots one firm on both sides will raise it mid-deal. The directory keeps the two categories apart for that reason, and how to compare firms without a ranking covers the rest of the Ontario shortlist. If a London company is shopping for preparation rather than the examination, start instead with SOC 2 readiness consultants in London, because it is a different purchase at a different price.

Three written quotes is the whole point of the exercise, and London does not always hold three CPA practices willing to bid on a company your size. The firms that sign opinions for London clients take the same engagements in Kitchener-Waterloo, Windsor and Hamilton, so widen the request before you settle for a shortlist of two.

What to do in the first week

1. Get the digital health buyer's security schedule in writing and find the sentence naming the report type. Most London projects are scoped from a relayed phrase instead.
2. Write down the systems in scope, and which Ontario premises, if any, an insurance reviewer would expect tested.
3. Decide the criteria. Security only unless a customer in digital health or insurance named another category in writing.
4. Start the data inventory PIPEDA expects. A London auditor needs the same information for the system description.
5. Approach three CPA firms with that scope, and separately approach readiness help, since PHIPA and PIPEDA work will not appear on an audit scope at all.

Common questions