The two tools aren't different tiers of the same thing — they're built for different jobs. A personal CRM like Dex or Clay is a better rolodex: it reminds you to text an old colleague, remembers a contact's kid's name, nudges you before someone's birthday. A business CRM is built around revenue — deals, proposals, invoices, and the engagements that pay your bills. Consultants often reach for the wrong one first, because "keeping track of people" sounds like the same problem whether or not money is attached.
What a personal CRM is actually built for
Dex, Clay, and similar tools solve network maintenance: hundreds or thousands of contacts you want to stay warm with, without a business reason attached to most of them. They surface who you haven't talked to in a while, pull in social updates, and remind you to reach out before a relationship goes cold — which is genuinely useful for a broad professional network. What they don't do is track a deal stage, generate a proposal, or connect a contact to an invoice, because that was never the problem they were designed to solve.
What a consulting practice actually needs
A consulting practice isn't maintaining a network in the abstract — it's running a small number of revenue-generating relationships through a repeatable cycle: conversation, proposal, signed engagement, delivery, invoice, renewal. Each of those stages needs to be visible and connected, not just the fact that a person exists in your contacts. A personal CRM has no concept of an engagement or an invoice at all — it was never meant to, and stretching it to cover that ends in the same spreadsheet-adjacent workaround it was supposed to replace.
How to tell which one you need
The honest answer depends on where your practice is, not which tool has better reviews.
Early solo practice, small book of business
If you're pre-launch or just getting started, with a handful of active relationships and most of your energy going into business development rather than delivery, the constraint isn't billing complexity — it's staying visible to a wide, mostly-dormant network long enough for opportunities to surface. A personal CRM genuinely earns its keep here. The gap shows up the moment a contact turns into a paying engagement and you need to track a proposal, a scope, and an invoice — at that point you're running two systems for one relationship.
Established practice with real pipeline and billing
Once you're consistently converting conversations into signed work — proposals going out, retainers renewing, invoices going unpaid if nobody's tracking them — the job has shifted from "stay in touch" to "run a business." That's a business CRM's job: engagement status, what's been proposed, what's been billed, and what's coming up for renewal, all tied to the same client record instead of scattered across a contacts app and an invoicing tool.
Two consultants, same headcount — one. A consultant with 200 loose contacts from a decade of conferences and warm intros, converting maybe two a quarter into real work, is well served by a personal CRM for the other 198. A consultant with 12 active clients, three open proposals, and $18,000 in retainers renewing this quarter needs to know which of those 12 hasn't been billed this month and which proposal is about to go stale — that's a business CRM's job, and no amount of birthday reminders fixes it.
They're not mutually exclusive
Plenty of consultants keep both — a personal CRM for the wide, low-touch network that might become business someday, and a business CRM for the clients actually generating revenue right now. The mistake is using one tool to do both jobs: a personal CRM stretched to track engagements loses the billing rigor you need, and a business CRM crammed with every LinkedIn connection you've ever made turns into noise that buries the clients who actually pay you.
If you're not sure your rates reflect the shift from "staying in touch" to "running a business," it's worth checking with a free consulting rate calculator before you decide which system to build around.