Consultants give a small business access to specific expertise without a permanent hire, which is genuinely valuable when used well, but choosing the wrong consultant, or engaging one without a clear, specific scope, wastes money that could have gone toward something the business actually needed.
These are the fundamentals of choosing and engaging a consultant well.
Define the specific problem before searching
A vague sense that ‘the business needs help’ leads to a poorly matched consultant; define the specific problem, a marketing gap, an operational inefficiency, a financial planning need, before searching for someone with genuine expertise in exactly that area.
A generalist consultant may suit a broad strategic review, while a specific, narrow problem is often better served by a specialist with deep expertise in that exact area.
Check genuine track record and references
Ask for specific examples of past work with measurable outcomes, and speak to actual past clients, ideally in a similar industry or of a similar size, rather than relying on a polished pitch or marketing material alone.
A consultant unwilling to provide genuine references or specific past results is a warning sign worth taking seriously, regardless of how confident their pitch sounds.
Agree a specific, measurable scope upfront
A clear engagement covering specific deliverables, timeline and cost, with defined success measures, protects against a vague, open-ended arrangement that drifts without producing a genuine, measurable result.
Our guide to non-disclosure agreements covers protecting confidential business information shared with a consultant during the engagement.
Measure the actual return on the engagement
Track whether the consultant’s specific recommendations were actually implemented and whether they produced the measurable outcome agreed at the start, rather than assuming value from the engagement having simply happened. Free business advisory support is also available through the Small Enterprise Development and Finance Agency as a lower-cost alternative for some needs.
A consultant who delivers a genuine, measurable result is worth retaining for future needs; one who doesn’t is worth being honest with yourself about, regardless of how much was already spent.
Frequently asked questions
When does hiring a consultant make sense?
When a specific problem, a marketing gap, operational inefficiency or financial planning need, is defined, rather than a vague sense that help is needed.
Should a generalist or specialist consultant be chosen?
Depends on the need: a generalist suits a broad strategic review, while a narrow, specific problem is often better served by a specialist.
How should a consultant’s track record be checked?
Ask for specific examples with measurable outcomes and speak to actual past clients, rather than relying on a polished pitch alone.
What should a consulting engagement include upfront?
Specific deliverables, timeline, cost and defined success measures, protecting against a vague, open-ended arrangement.
How should the value of a consulting engagement be measured?
By tracking whether recommendations were actually implemented and produced the measurable outcome agreed at the start.
Further reading
Originally published in 2024. Updated September 2026 into guidance on choosing a business consultant properly, replacing a list of individually-named firms.
