Is a full PSA worth it for a 30-person company, or is there something lighter?

TL;DR:

For most 30-person consulting firms, a full enterprise PSA might be an overkill. The better fit would be a mid-market all-in-one PSA or a lighter stack of specialist tools. The deciding factor here is operational complexity: concurrent projects, mixed billing models, and reporting load, not headcount. You should match the tool to the pain you currently experience.

At 30 people, the question is rarely what PSA stands for its more have we outgrown spreadsheets, and do we need one system, or just better visibility?"

The data

The evidence points to a real breaking point in the 20–50 person range, and to a wide gap in cost and setup between "full" and "lighter." The numbers below come from named sources, listed at the end.

• 88% of operational spreadsheets contain errors. Field audits by Raymond Panko (University of Hawaii) found errors in most spreadsheets studied, at an average 5.2% cell error rate. Celoxis applies this to scale: for a 50-person team running 30 projects, one bad cell can invalidate resource decisions worth hundreds of thousands of dollars.
• PSA users report higher billable utilization. SPI Research's Professional Services Maturity Benchmark (reported by Rocketlane) puts PSA users at 66.4% versus 63.5% for non-users. Most agencies target 75–85% billable utilization; below 65% is a red flag.
• A 20% time-capture gap can cost $300,000–500,000 a year. Rize models this for a 20-person agency billing at $150/hour. Unlogged hours are the single biggest revenue leak at this size.
• Cloud PSAs commonly cost $30–150 per user per month. Ravetree estimates small firms (10–25 users) spend $5,000–20,000 a year all-in, and mid-market firms $50,000–200,000, with positive ROI usually in 8–18 months.
• A slow PSA needs a dedicated admin. Ruddr warns that a complex, hard-to-deploy PSA can require a full-time internal owner, adding upwards of $100,000 a year in cost.
• Tool sprawl is expensive and common. Per Agiled's Agency Technology Statistics (2026), 56% of agencies are actively consolidating their stack, SaaS spend hit $4,830 per employee in 2025 (up 21.9% year over year), and 36% of licenses go unused.

In-depth results

What breaks at 20–50 people. The problem is rarely one missing feature but more coordination debt. The firm has enough people, projects, and billing activity that manual tracking gets fragile. Magnetic describes the trigger well: most firms don't go looking for a PSA, they switch "because something broke — a project finished on time but lost money, a resource crunch caught them off guard, or they spent two days pulling together data that should have taken two minutes."

The recurring word from operators is "flying blind." Harv Nagra, a former agency Group Operations Director, described his own firm before a PSA: budgets "were being reconciled in Google Sheets manually, and they were not accurate at all," only a handful of people logged time, and growth "is not possible if we're flying blind." Productive frames the profitability version: "many agencies can only tell whether a project was profitable after the damage is already done."

Independent sources converge on the same threshold. Teamwork says operations leaders "hit a breaking point around 20 to 30 people, when the manual upkeep outpaces the value." Kantata, citing SPI Research, argues every services firm over 20 employees should seriously consider PSA. A 30-person firm sits squarely in the zone where the question is fair to ask.

Headcount is the wrong test - complexity is the right one. Two firms of 30 people can have completely different needs. The signals below decide the answer better than headcount does.

Lean toward a full or all-in-one PSA if you have:

• Five or more concurrent client projects.
• Mixed billing models: fixed-fee, time and materials, and retainers together.
• Project margin you can't see until after delivery.
• Multiple project managers keeping separate plans.
• A sales-to-delivery handoff that keeps breaking.
• A dedicated operations owner to run the system.
• Reporting that already eats many manual hours a week.

Lean toward something lighter if:

• Your main need is task and project visibility.
• Billing is simple and handled in your accounting tool.
• One or two people manage all the scheduling.
• Projects are similar and predictable.
• Your team likes its current PM tool and would resist heavy process.
• The real problem is getting people to log time, not software scope.

"Full" is not free. This is the crux of "worth it." Enterprise PSA platforms (Kantata, Certinia, Deltek) are built for 50 to 5,000+ employees and take 3–6 months to implement, sometimes more. Modern cloud PSAs go live in 4–12 weeks. The lightest mid-market tools launch in days to a few weeks. The cost that sinks small teams is usually the implementation and the admin time.

Three realistic paths. For a 30-person firm, the market splits three ways: an enterprise PSA (usually too heavy), a mid-market all-in-one PSA (the practical "full" option), or a lighter modular stack of specialist tools. The right choice follows the complexity signals above.

Side-by-side comparison

Where Operating fits. Operating is a mid-market all-in-one PSA built for consulting firms. It puts pipeline, people, and margins into one picture, so you can see project profitability and who's free without exporting to a spreadsheet. For a 30-person firm that wants one system but not a six-month rollout, it sits in the middle row above. Once it's in place, you can run it from Claude or ChatGPT through Operating's MCP server — ask who's free in March, or draft an invoice, without opening the app. If your pain is narrower, a lighter stack may be enough, and this post is meant to help you tell the difference.

Frequently asked questions

Do small consulting firms need PSA software?

Not necessarily a full one. Firms under about 50 people often get better ROI from a mid-market all-in-one PSA or a lighter stack. The deciding factor is complexity — concurrent projects, mixed billing, multi-entity work — not headcount alone.

When does a PSA become worth it?

When manual coordination stops scaling. That's commonly 20–50 people, five or more concurrent projects, or the point where reporting needs heavy manual assembly and you find out about lost margin only after the invoice goes out.

When is a PSA overkill?

When you only need task tracking, basic time logs, or simple invoicing. Enterprise PSA is overkill for small teams with no dedicated operations owner. Warning signs: paying for unused modules, a 3–6 month implementation quote, and staff reverting to spreadsheets.

What is lighter than a PSA?

Three common options: a project management tool plus a time tracker plus accounting; a PM tool plus a dedicated resource planner like Float or Runn; or a mid-market all-in-one PSA that skips the enterprise finance modules.

What's the difference between a PSA and project management software?

Project management handles tasks, timelines, and collaboration — it answers "did we deliver?" A PSA adds resource planning, project financials, and billing — it answers "did we deliver profitably?" As Magnetic puts it, PM optimizes for delivery, PSA optimizes for profitable delivery.

Is a PSA better than spreadsheets?

For live capacity, utilization, and budget-versus-actuals, yes. Spreadsheets are cheap and flexible but go stale fast and carry errors — 88% contain them, per Panko. They tend to break past 10–20 people or five concurrent projects.

How much does a PSA cost and how long does it take to set up?

Roughly $30–150 per user per month. Setup ranges from a few days for the lightest tools to 4–12 weeks for modern cloud PSAs, and 3–6 months or more for enterprise platforms.

Related reading from Operating

• What is professional services automation (PSA) software?
• Top 10 PSA platforms for consulting firms (2026)
• 5 best resource planning platforms for consulting firms
• Moving from spreadsheets to integrated resource planning
• Run your PSA from Claude or ChatGPT: Operating's MCP server
• Your consulting ERP has a PSA module — so why is everyone back in Excel?

Sources

• Panko, R. — "What We Know About Spreadsheet Errors" (University of Hawaii): https://www.celoxis.com/article/capacity-planning-software-vs-spreadsheets
• Celoxis — "Capacity Planning Software vs Spreadsheets": https://www.celoxis.com/article/capacity-planning-software-vs-spreadsheets
• Rocketlane — "What is PSA Software: A Complete Guide for PS Leaders": https://www.rocketlane.com/blogs/psa-in-business
• Kantata — "2025 Professional Services Maturity Benchmark" (SPI Research): https://www.kantata.com/resource/2025-professional-services-maturity-benchmark
• Rize — "PSA Software vs Automatic Time Tracking": https://rize.io/blog/psa-software-vs-automatic-time-tracking
• Ravetree — "The Complete Guide to Selecting the Right PSA Software": https://www.ravetree.com/blog/the-complete-guide-to-selecting-the-right-psa-software
• Ruddr — "Why a Lengthy PSA Implementation is a Major Red Flag": https://www.ruddr.com/post/why-a-lengthy-psa-implementation-is-a-major-red-flag
• Teamwork — "Workforce Capacity Planning": https://www.teamwork.com/blog/workforce-capacity-planning/
• Kantata — "Breaking Down Project Management Software vs PSA": https://www.kantata.com/blog/article/breaking-down-project-management-software-vs-psa
• Magnetic — "PSA Software vs Project Management Software": https://www.magnetic.app/blog/psa-software-vs-project-management-software
• Productive — "Best PSA Software (Buyer's Guide 2026)": https://productive.io/blog/best-psa-software/
• Agiled — "Agency Technology Statistics": https://agiled.app/statistics/agency-technology-statistics
• Forecast — "How Long Does It Take to Implement PSA Software": https://www.forecast.app/learn/how-long-does-it-take-to-implement-psa-software
• High Agency podcast (Harv Nagra) — "Fixing the Way to Leadership": https://highagencypodcast.com/episode/fixing-the-way-to-leadership