Professional services automation (PSA) software for client-work firms

A service firm sells expertise by the hour, the day or the project. Its stock is people’s time, so its weekly questions are about time: who is free, what the work is costing, what can be invoiced and whether the client has paid.

Professional services automation (PSA) software is one system that holds those answers for every client job. It follows the path each job takes from agreement to cash, which the trade calls quote-to-cash:

1. Quote. Scope and price are agreed with the client.
2. Plan. The project gets a budget, tasks and dates.
3. Staff. People are assigned against the capacity they actually have.
4. Deliver. The work is done and hours are logged against tasks.
5. Review. A manager approves timesheets, which locks each week; every logged hour already counts in project cost.
6. Bill. Invoices go out, once or on a schedule, and unpaid ones are followed up.
7. Learn. Hours and expenses are set against what the project earned.

Without a PSA, each step lives in a different place: a proposal document, a task board, a timesheet spreadsheet, the accountant’s invoicing. The link between them is someone’s memory, and the margin on a project is known weeks after it closes, if at all.

Most PSA tools share the same core. The table goes area by area and says where PLYNTUM stands today; plan names refer to the pricing page.

The labels overlap, and vendors stretch them. Four distinctions hold up in practice.

Project management software

Tasks, boards, deadlines and who does what. Tools such as ClickUp or monday.com Work Management organise this well, but invoices, expenses and receivables live in another system. It is enough when you bill a fixed monthly fee and nobody needs a margin per project.

PSA for client-work firms

Project management plus the money around it: people’s capacity and cost, logged hours, expenses, invoices and project profitability in one record. You need it when you sell hours or fixed-fee projects and want to know the margin while the work is still running. This is the category PLYNTUM is in.

ERP

Runs the whole company’s finance and operations: general ledger, procurement, payroll, often inventory and consolidation across legal entities. For a 15-person agency an ERP is usually more system than problem; accounting software for the books and a PSA for the work is the simpler split. The side-by-side table is in PSA vs ERP.

MSP or IT PSA

Built for IT managed service providers that look after clients’ computers and networks: tickets, service-level agreements, contracts per device or seat, and links to remote monitoring and management (RMM) tools. ConnectWise PSA and Autotask are typical examples. If that is your business, PLYNTUM is the wrong tool: it has no ticketing and no device monitoring.

Professional services project management is project management with a cost attached. A consultancy, studio or engineering practice needs tasks, owners and dates like any team, but every task is also hours sold to a client, so the plan has to say what the work may cost as well as when it is due. That is where professional services software differs from a general task tool.

In PLYNTUM the structure follows the client:

• Projects per client. Each engagement, retainer or fixed-fee job is a project under its client, with its value, dates and files. See projects and tasks.
• Phases and tasks with estimates. Split the project into phases or deliverables and give each task an owner, a deadline and an estimate in hours; link tasks that depend on each other. List, board, calendar, week and timeline views show the same tasks.
• Time against tasks. People log hours on the task they worked on, with a timer or a weekly timesheet, on every plan. See time tracking.
• Approval and profitability from Core. Managers approve timesheets, and logged hours at each person’s loaded cost, plus direct expenses, are set against the project value. See project budgets and profitability.
• Capacity from Scale. Every plan records assignments and leave per person; the workload view, capacity and resource planning start on Scale. See people and capacity.

What it does not have: a quotes module or skills matching. A sales pipeline is part of CRM core for eligible users, with limits per plan. If you are comparing professional services project management software, the best PSA software guide reads the main tools for client-work firms on the same basis.

Each of these can be patched with a spreadsheet for a while. When several are true at once, the problem is no longer discipline; the data sits in too many places.

• You learn a project’s margin after it closes, or never, because hours and costs are added up at the end.
• Timesheets are rebuilt from memory on Friday afternoon or at month end, and nobody trusts them.
• Invoices wait for someone to total the hours from a spreadsheet before they can go out.
• “Can we take this on in March?” needs three conversations and still ends in a guess.
• A retainer client has quietly grown past what the fee assumed, which is scope creep, and it only shows at renewal.
• You cannot say what share of last quarter’s paid hours was billable, which is your utilization rate.
• One project is spread across four or five tools, each holding a different piece of the truth.

Most PSA and agency tools charge per user per month. The table applies the prices vendors publish on their own pages, checked 25 September 2026 (Productive and Teamwork.com on 24 October 2026), to a 10-person firm. Annual billing unless stated, excluding tax. Feature scope differs from tool to tool, so this compares price, not value.

For a team of 3 to 25, the cost at 5, 10 and 25 people and a buyer checklist are in PSA software for small businesses.

It fits firms of roughly 3 to 50 people that sell hours or fixed-fee projects: agencies, consultancies, studios, and accounting or engineering practices. Pricing is per workspace with a set number of members included, so adding a junior or a part-timer costs nothing extra until you pass the plan’s member count. A firm with two legal entities gets a workspace for each, with its own plan, under one login. The interface is in English and Georgian.

It does not fit if you need:

• skills matching, resource forecasting for large teams, revenue recognition or ERP-level finance; tools such as Kantata are built for that scale;
• quote-to-invoice with contracts and tickets in one tool today, where Accelo goes deeper;
• Inbox channels and emailing proposals to clients are not part of CRM core. CRM core covers contacts, organizations, opportunities and a pipeline for eligible users.
• helpdesk tickets, service levels and device monitoring for an IT managed service business;
• automatic desktop time capture, a general ledger, payroll or tax filing.

A demo shows a tool at its best. A trial with one real project shows whether your team will use it. These five steps work for any PSA. PLYNTUM’s 7-day free trial is on the Launch plan (5 members); timesheet approval, recurring invoices and the client portal start on Core.

1. Pick one live project. Ideally one with a fixed fee or a set budget, three to five people and at least one direct expense. Enter the client, the project value and the tasks.
2. Put a cost on each person. Enter a loaded hourly cost for everyone on the project. If you do not know it, the hourly rate calculator helps you work it out.
3. Log time daily for five days. Everyone on it logs hours against tasks each day. Watch whether they do; a PSA nobody fills in is a spreadsheet with a login.
4. Close the loop. Go through the week’s hours, add the expense and draft the invoice you would really send. Count how many other tools you had to open.
5. Read the margin and the gaps. On day seven, compare the project’s profitability with your gut feeling. Then go down the table above and mark what you would still need elsewhere: pipeline, accounting, ticketing.

Every price was checked on the vendor’s own pricing page on the date shown next to it. If something has changed, tell us at info@plyntum.com and we will correct it.

• Productive pricing (checked 24 October 2026)
• Teamwork.com pricing (checked 24 October 2026)
• Function Point pricing (checked 25 September 2026)
• Scoro pricing (checked 25 September 2026)

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