Consultancies sell expertise and time, so the stack should remove admin rather than add it. Every tool here has a free plan or a low entry price and can be run by one person without an IT department.
Client confidentiality matters as much as convenience: the stack includes a password manager and backups from day one.
At a glance
- Tools: Pipedrive, FreshBooks, Notion, Claude, Otter.ai, Bitwarden, Backblaze.
- Indicative cost: ≈ $222 per month for 3 people on the cheapest paid plans, or from ≈ $117 using free plans where they fit.
- Start with: Backups and password manager on day one.
- Biggest pitfall: Over-building Notion before you have clients; start with one template.
The stack
Simple, visual pipeline that a solo seller will actually keep updated. Good email sync and reminders.
Price: From around $14–24 / user / month (indicative) · Alternative: HubSpot CRM · All CRM software
Built for service businesses: time tracking, retainers, proposals and polished invoices.
Price: From around $19–23 / month (indicative) · Alternative: Xero · All accounting software
One place for client wikis, meeting notes, proposals and your own knowledge base.
Price: Free for individuals; paid from around $10–12 / seat / month (indicative) · Alternative: ClickUp · All collaboration & docs
Summarise documents, draft reports and structure analysis. Use a business plan for client material.
Price: Free tier; team plans from around $25–30 / user / month (indicative) · Alternative: ChatGPT · All AI assistants
Accurate transcripts and summaries so you can listen instead of taking notes.
Price: Free plan; paid from around $8–17 / user / month (indicative) · Alternative: Fireflies.ai · All AI meeting assistants
Low-cost secure storage and sharing for client credentials.
Price: Free personal plan; Teams from around $4 / user / month (indicative) · Alternative: 1Password Business · All password managers
Set-and-forget laptop backup — the single most important protection for a solo business.
Price: Computer backup around $9 / computer / month (billed annually for less) (indicative) · Alternative: Acronis Cyber Protect · All backup & recovery
What it costs for 3 people
| Tool | Cheapest paid plan | ≈ per month | Free plan fits? |
|---|---|---|---|
| Pipedrive | Essential | $42 | No |
| FreshBooks | Team member add-on | $33 | No |
| Notion | Plus | $30 | Yes |
| Claude | Team | $75 | Yes |
| Otter.ai | Pro | $24 | No |
| Bitwarden | Teams | $12 | No |
| Backblaze | B2 Cloud Storage | $6 | No |
| Total | $222 | $117 starting free |
Computed from each tool's indicative price tiers (USD, usually annual billing). A tool appearing twice is counted twice. Excludes taxes, add-ons and discounts. Run your own numbers in the SaaS TCO calculator.
Setup order
- Backups and password manager on day one.
- Accounting with invoice and proposal templates.
- CRM with a five-stage pipeline.
- Notion workspace with a client template.
- Meeting assistant — tell clients you record, and why.
As you grow
Working with associates
If you subcontract to associates, give them guest access to project tools, keep client credentials in shared vaults you control, and agree in writing who owns work product and client data. Remove access as soon as an engagement ends.
Hiring your first employees
Add payroll (Gusto or OnPay in the US) and move from solo accounting plans to tiers with multiple users. Introduce a shared CRM pipeline so business development is visible to the whole team, and set up shared vaults for client credentials.
Becoming a small firm
Add project and resource planning, proposal software and a document management approach with clear folder structures and retention rules. Consider an HR system once you reach 15–20 people.
Pitfalls to avoid
- Over-building Notion before you have clients; start with one template.
- Recording client calls without consent — always ask first.
- Mixing personal and business accounts in one password vault.
Frequently asked questions
Can a solo consultant use this stack?
Yes. Most tools have free or single-user plans; start with invoicing, a simple CRM and a password manager, then add tools as you take on staff or associates.
What is the most important tool for consultants?
Invoicing and time tracking, because they turn work into revenue. FreshBooks or Xero with a time tracker are common choices.
How should I store client documents?
Use one cloud storage provider with a clear folder structure per client, share links with expiry dates and agree how long you keep files after a project.
What does this stack cost?
The indicative monthly cost at the top of this page is computed from the cheapest paid tier of each tool. Several tools have free plans, so you can start for less.
Do I need a CRM as a solo consultant?
If you have more than a handful of leads at once, yes — follow-ups are where solo consultants lose work.