The Standard
Six Standards of Professional Service Excellence
Trusted Firms Global certification is built on six service standards that reflect what clients consistently value in professional services firms. These standards are assessed through independent feedback and benchmarked against peer performance.
Responsiveness & Reliability
Clients receive timely, reliable responses appropriate to the urgency of their needs.
Clarity & Communication
Clients understand advice and feel kept informed throughout the engagement.
Expertise & Proactive Value Delivery
Clients see value beyond the transaction — advice that anticipates needs and creates forward momentum.
Relationship & Trust-Building
Clients trust their advisers personally and professionally, and feel the relationship is genuinely valued.
Service Accountability & Follow-Through
Clients see promises delivered and issues resolved. Commitments are tracked and honoured.
Staff Recognition & Celebration of Excellence
Staff delivering great service are recognised and celebrated — building a culture of service excellence from within.
Our standards are grounded in established research on how clients experience professional services. Read the research foundations →
Certification Tiers
The certification tier is a governance ladder. Each tier requires the one below it — plus deeper process commitment. Lead with process depth; score follows from process.
The firm submits to independent measurement
Independent NPS measurement via Client Culture
Minimum 300 client responses (statistical reliability)
NPS ≥ 70
Annual measurement cycle
Verification method
Self-certified with algorithmic fraud detection — client list shrinkage, statistical outlier flagging, response rate monitoring.
The measurement is proven honest
All Standard requirements, plus:
Client list validated against invoicing records
Year-over-year client list comparison
All-in methodology confirmed via interview
Every invoiced client included — no selection
Verification method
Manual audit by Client Culture. Client lists reviewed for completeness against billing records.
The highest level of process transparency and client accountability
All Verified requirements, plus:
Quarterly measurement minimum
Structured detractor follow-up with evidence
Billing system integration (client list auto-generated)
Sustained response rates across all cycles
Verification method
Manual audit (mandatory). Quarterly review, detractor follow-up evidence, billing integration confirmed.
Note on Gold and NPS: Firms meeting Gold process standards consistently achieve NPS ≥ 80. The NPS threshold is evidence of process quality, not the criterion being assessed.
Tier comparison
| Standard | Verified | Gold | |
|---|---|---|---|
| NPS threshold | ≥ 70 | ≥ 70 | ≥ 80 typical |
| Response rate | — | — | Sustained across all cycles |
| Min. responses | 300 | 300 | 300 per cycle |
| Measurement cycle | Annual | Annual | Quarterly minimum |
| Client list source | Self-declared | Validated against invoicing | Billing system integration |
| Year-over-year comparison | — | ✓ | ✓ |
| All-in methodology | Self-attested | Confirmed via interview | Confirmed + billing integrated |
| Detractor follow-up | — | — | Structured programme with evidence |
| Verification method | Algorithmic | Manual audit | Manual audit (mandatory) |
| Annual renewal | ✓ | ✓ | ✓ |
Industry benchmarks
Trusted Firms Global maintains industry-specific benchmarks for professional services sectors. Benchmarks are updated annually based on aggregate data across certified firms.
Accounting firms
Industry-specific client experience drivers and expectations — assessed and benchmarked independently.
Law firms
Industry-specific client experience drivers and expectations — assessed and benchmarked independently.
Wealth management / financial advisory
Industry-specific client experience drivers and expectations — assessed and benchmarked independently.
How we maintain standards
Minimum participation thresholds — sample size and response rate
Algorithmic anomaly detection (Standard tier)
Manual audit against billing records (Verified and Gold tiers)
Year-over-year comparison prevents cherry-picking
Annual renewal required (quarterly measurement minimum for Gold)
Public verification pages create accountability
Gold's process requirements are inherently anti-gaming — billing integration, quarterly cycles, and detractor follow-up make manipulation impractical
Ready to meet the standard?
Apply for certification and choose your tier.