There is no shortage of “best digital transformation consultants” roundups. Most of them rank firms by size, or by how much the firm paid to be included, neither of which tells you whether the work will actually get done. Here is what I think is worth checking instead, having sat on both sides of this conversation.
Ask who is actually going to do the work
The person who runs the sales conversation and the person who delivers the project are often different people at larger firms — sometimes several layers of different people. Neither is wrong on its own, but you should know which one you are hiring before you sign anything. Ask directly: “Will the person I’m talking to now be doing the work?” A firm that answers that clearly, either way, is being honest with you. One that dodges it is telling you something too.
Ask what happens in week one
Vague answers here are the biggest tell. “We’ll do a discovery phase” tells you nothing. A specific answer — a fixed-price scoping day, a named deliverable, a date it will land by — tells you the consultant has done this enough times to know exactly what week one looks like. If nobody can describe week one concretely, be cautious about what weeks two through twelve will look like.
Ask to see something they actually built
Case studies with real numbers — hours saved, error rates, time-to-quote — are worth more than a portfolio of logos. Ask what a project that did not go well looked like, too. Anyone who has done this work for more than a couple of years has had one go sideways. The honest ones will tell you what happened and what changed afterwards.
Ask what you own at the end
This matters more than almost anything else on this list. Some engagements hand you working software, full access, and documentation. Others quietly keep you dependent on the agency for every change afterwards, because that dependency is the business model. Ask directly: if we parted ways tomorrow, what would we be left holding? Get the answer in writing before you start, not after.
Ask how they charge, and why
Day rates, fixed-price phases, retainers, percentage-of-savings — there is no single correct model, but there is a correct amount of clarity about it. Be wary of anyone reluctant to commit a number to a scope. Scope changes are normal; pricing that changes shape every time you ask about it is not.
Ask what they will say no to
A consultant who agrees with every idea you bring to the table is either inexperienced or not paying attention. Somewhere in the first conversation, a good one will tell you that something you want is a bad idea, or unnecessary, or not worth the cost yet. That disagreement, delivered plainly, is a better signal than any client-logo slide.
What I would actually do
If I were hiring for this, I would ask all six questions above in the first call, and I would pay closer attention to how the answers were delivered than to the answers themselves — directness, specificity, and a willingness to say “no” or “I don’t know yet” are the pattern to look for. Polish is cheap. Straight answers to inconvenient questions are not.
The consultants worth hiring are the ones who make themselves easy to fire. Ownership, documentation, and a clear answer to “what do we do if this doesn’t work out” are the tell.
If it’s useful, this is roughly how Henderson Digital answers all six: one person from first call to handover, a fixed-price Transformation Day as week one, five case studies with client-reported numbers on the case studies page, full ownership of code and access on delivery, and day-rate or fixed-price work agreed before anything starts. That is not a sales pitch — it is meant as a working example of what a straight answer to each question looks like, so you have something to compare other conversations against.
