Last updated: May 2026
Plante Moran is a national SOC 2 audit firm in Southfield, MI, USA that charges $40K–$100K for Type II audits with 6–14 month timelines. Founded in 1924, they hold 1 accreditations and specialize in Financial Services, Technology Companies, Healthcare, and 2 more. Their pricing is in the mid-range compared to the national average of $40.263K–$106.842K.
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of National firms charge more for Type II
of National firms have longer minimum timelines
certifications (tier avg: 3)
Side-by-side pricing, timeline, and certification counts for the 5 closest-priced peers in the national tier.
| Plante Moran | CBIZ (formerly Marcum LLP) | RubinBrown | KLR (Kahn Litwin Renza) | Grassi | BDO UK | |
|---|---|---|---|---|---|---|
| Type II Cost | $40K–$100K | $40K–$100K | $40K–$100K | $40K–$100K | $40K–$100K | $40K–$100K |
| Type I Cost | $25K–$80K | $25K–$50K | $25K–$80K | $25K–$80K | $25K–$80K | $25K–$80K |
| Timeline | 6–14 mo | 4–9 mo | 6–14 mo | 6–14 mo | 6–14 mo | 6–14 mo |
| Team Size | 3500-4500 | 10000–11000 | 1000–5000 | 350–5000 | 600–5000 | 8000 |
| Certifications | 1 | 9 | 1 | 1 | 2 | 1 |
| Founded | 1924 | 1951 | 1952 | 1975 | 1980 | 1903 |
For buyers in Financial Services and Technology Companies, Plante Moran fits the national profile when timeline (6–14 months) and Type II pricing ($40K–$100K) align with what national firms typically deliver.
Large enterprises across multiple industries requiring comprehensive audit, tax, and advisory services.
100+ year heritage with people-first culture and integrated audit, tax, consulting, and wealth management capabilities.
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5 industries — National average: 7
1 certifications — National average: 3
Standard CPA workpapers
Plante Moran SOC 2 Type I audits typically range from $25K to $80K. Type II audits range from $40K to $100K. This is in the mid-range for national firms — the national tier average is $40.263K–$106.842K. Final pricing depends on your organization's scope, number of trust service criteria, and system complexity.
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