Cooper Parry vs Deloitte

Cooper Parry has a Proven Score of 47/100 (Emerging). Deloitte has a Proven Score of 39/100 (Emerging). Cooper Parry ranks higher in Accounting & audit firms. Both are in Accounting & audit firms on the Proven Trust Index. Vendors cannot pay to change a score. Scores can't be bought.

Score inputs

Input	Cooper Parry	Deloitte
Proven marketplaces	4.1 / 15	3.3 / 15
Member redemption clicks	2.8 / 15	0 / 15
Client quality	20 / 20	20 / 20
Operating tenure	10 / 10	10 / 10
Market standing	0 / 10	0 / 10
Connected relationships	3.1 / 10	0 / 10
Connected data	0 / 5	0 / 5

Best for

Shared

Use case: Accounting & audit firms

Different

Stage — Cooper Parry: Merger / Acquisition; Deloitte: Other
Team size — Cooper Parry: 1,900 employees; Deloitte: 476,000 employees
Region — Cooper Parry: Derby, United Kingdom; Deloitte: Lenexa, United States

Pages

Cooper Parry · Deloitte · Best Accounting & audit firms for startups, ranked by the Proven Trust Index

Data updated 2026-10-27.

Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Scores can't be bought. Data updated 2026-10-27. About the data · Proven