Eagle Rock CFO vs Sustain CFO Services

Sustain CFO, operating at sustaincfo.com, provides fractional virtual CFO services with a specific focus on ESG, sustainability reporting, and social impact finance. Their target clients are purpose-driven companies—B Corps, social enterprises, and businesses where impact metrics are weighted alongside financial performance. Sustain CFO brings expertise in non-financial reporting, stakeholder capitalism, and the intersection of financial management with environmental and social governance goals. For companies where ESG commitments are central to their business model and stakeholder expectations, this specialization provides relevant expertise that generalist CFOs typically lack.

Eagle Rock CFO is built for businesses whose primary metric of success is financial health—not companies where impact metrics are a co-equal or primary driver. We serve established businesses with $5M-$50M revenue that need world-class financial management: accounting, controller oversight, treasury, and FP&A. Our performance is measured by your margins, cash flow, liquidity, and financial resilience. We support businesses that may have ESG commitments as part of their operations, but our engagement model is finance-first—we optimize for your financial outcomes, not your impact scorecard. If your business model requires real-time impact measurement alongside financial management, we can work alongside your ESG advisors.

A fractional CFO whose expertise centers on ESG reporting, sustainability finance, and social impact metrics alongside financial management. Sustain CFO is purpose-built for B Corps, social enterprises, and companies where stakeholder capitalism and impact measurement are central to the business model. If ESG disclosures, benefit corporation reporting, and non-financial metric tracking are regulatory or stakeholder requirements for your business, this specialization is directly relevant.

A finance team focused entirely on financial health—margins, cash flow, capital structure, and financial strategy—without the complexity of integrated impact reporting. Established businesses with $5M-$50M revenue that are focused on growth, profitability, and financial resilience. We deliver the financial infrastructure and strategic guidance that makes profit-maximizing decisions clearer, faster, and more confident.

Sustain CFO: pricing available by consultation, typically in the $3,000-$10,000/month range for fractional CFO services. Eagle Rock CFO: pricing available by consultation, scoped to the full finance office for established $5M-$50M businesses. Both occupy similar price ranges; the distinction is mission alignment and area of specialization. Choose based on what you are optimizing for.