Thirteen accounting firms have united to form Sorren, a national firm backed by private equity firm DFW Capital Partners that will have over a thousand employees and 20 offices across the country.
Operating in an alternative practice structure as Sorren CPAs PC for attest services and Sorren Inc. for business advisory and non-attest services, the combined firms have 85 partners and approximately $170 million in revenue, with plans to add more firms going forwards.
Many of the founding firms met as members of the BDO Alliance, and their leaders had gotten to know one another as attendees at alliance meetings and managing partner roundtables, according to Josh Tyree, the president of Sorren, who was previously president of Harris CPAs, an Idaho-based firm that was the first of the group to go the PE route, signing up with DFW in January 2024.
Sorren’s headquarters in Boise, Idaho
“Harris had started looking at that process with DFW for a good chunk of 2023,” Tyree recalled, “and I remember we were having a managing partner roundtable meeting in Nashville that year in the fall, and they were all there and I raised my hand after two hours of talking about PE and I said, ‘Hey guys, I think I’m going to jump in feet first and you guys should all come and join us.'”
And they did — with individual firms joining up with DFW over the course of 2024, and a large group in January 2025.
“There was a level of comfort,” he explained. “We knew all of our firms and our people and what we do and how we do it because we’d shared so much information over the years.”
Apart from Harris, the other firms currently comprising Sorren are:
Acuity (Georgia);
Aycock & Co. (Texas);
Capital Nomics Valuations (California);
Chigbrow Ryan Murata (Idaho);
Hoerber Tillman & Co. (Florida);
JRJBF (Illinois);
KDP Advisors (Oregon);
KMA Advisors (Wisconsin);
Pisenti & Brinker (California);
Roeser Accountancy (California).
SBF Advisors (Florida);
Stockman Kast Ryan & Co. (Colorado).
Allan Koltin, CEO of Koltin Consulting Group, said in a statement, “What makes Sorren stand out is the way these firms came together — with intention, shared values, and a commitment to staying deeply connected to their local markets. This group didn’t just merge for size; they united around a common purpose. It’s a blueprint for how innovative firms can grow, while staying true to who they are.”
Josh Tyree
The firms all have a strong focus on small and middle-market businesses and nonprofits that want a local firm feel and relationship, even if they need services across the country. As it adds new firms, Sorren will prioritizing those that are a fit with their current culture.
“If we go into another region, we want to start with leadership and good people; we’re not just randomly going out to try and find any firm that meets [a client need],” Tyree explained. “It really has to fit our culture and it has to have a leader in that area for us to go into that services.”
He also made the point that Sorren is still very much a work in progress — relying on current firm expertise to build national practices in tax, assurance, CAS and advisory.
“One goal when we originally started was we wanted to get to enough mass size that we could really start to build this by using leadership from and talent from all the firms that came on board,” Tyree said.
“It’s going to be super fun, but it’s a lot of work,” he added. “If all you’re looking to do is do a rollup or something like that, that’s probably not our style. We’re trying to create this for our type of client and our type of cultures. And we think there’s a little void there where we can do it.”
Corporate accounting departments face expanding reporting expectations as international sustainability disclosure standards achieve regulatory enforcement across major global jurisdictions. Chief Accounting Officers (CAOs) and corporate controllers are establishing rigorous internal accounting controls to treat Environmental, Social, and Governance (ESG) metrics with the same data precision, auditability, and governance as traditional financial statements.
Regulatory Harmonization Under Global Sustainability Frameworks
The implementation of standardized sustainability reporting frameworks—notably rules established by international sustainability accounting boards—has created unified expectations for public and large private enterprises. Corporations must report standardized metrics covering greenhouse gas emissions (Scope 1, 2, and material Scope 3), energy utilization, workforce demographics, and supply chain governance.
In Europe and other participating international jurisdictions, double materiality principles are mandatory. Under double materiality, organizations must report both how external sustainability risks impact corporate financial performance, and how internal corporate operations affect surrounding environmental and social structures.
Integrating Sustainability Metrics into Core ERP Systems
To provide auditable non-financial data, enterprise organizations are integrating specialized carbon accounting and ESG management platforms directly into core ERP systems. Automated data collectors capture energy utility invoices, logistics fuel consumption metrics, and vendor compliance records in real time.
Establishing automated, traceable data pipelines ensures that non-financial reporting is supported by clear audit trails. This structured approach allows external financial auditors to provide reasonable assurance on sustainability disclosures during annual corporate reporting cycles.
Financial Impacts and Capital Market Disclosure
Accurate ESG reporting directly influences corporate cost of capital and institutional credit ratings. Commercial lenders and institutional asset managers systematically incorporate sustainability metrics into risk pricing models. Companies that demonstrate transparent, verifiable progress in operational energy efficiency and climate risk mitigation benefit from expanded access to green bond markets and lower debt pricing.
Action Steps for Accounting Leadership
1. Implement Double Materiality Frameworks: Conduct comprehensive assessments to identify material financial and operational sustainability metrics.
2. Build Auditable Non-Financial Data Pipelines: Automate ESG data collection within core accounting software to ensure data integrity.
3. Align Sustainability with Annual Financial Filings: Prepare non-financial disclosures concurrently with financial statements to satisfy regulatory audit expectations.
Internal audit departments and corporate risk managers are modernizing internal control frameworks by shifting from periodic sampling techniques to continuous monitoring and machine learning analytics. As operational data volumes increase across enterprise organizations, automated control testing ensures financial integrity, prevents corporate fraud, and streamlines annual audit engagements.
The Limitation of Periodic Audit Sampling
Historically, internal and external auditors evaluated internal controls by reviewing random samples of financial transactions—often analyzing less than five percent of total ledger entries. In complex enterprise environments, periodic sampling methods carry inherent risks of overlooking localized financial misstatements, unauthorized disbursements, or operational control breakdowns.
In 2026, progressive internal audit functions are utilizing automated continuous monitoring platforms that evaluate one hundred percent of financial transactions in real time. Continuous control auditing systems continuously monitor general ledger entries, procurement approvals, and expense reimbursements across all operating subsidiaries.
AI-Powered Fraud Detection and Anomaly Identification
Machine learning models trained on historical corporate financial data excel at identifying subtle transactional anomalies that indicate potential fraud or operational error. Automated systems instantly flag duplicate invoice payments, unapproved vendor creation, unusual journal entry timing, and unauthorized override of authority thresholds.
When an anomaly is detected, the automated auditing platform generates an instant risk alert, allowing internal audit teams to investigate root causes immediately. Early detection prevents minor operational errors from escalating into material weaknesses in financial reporting.
Streamlining External Audit Preparation
Continuous internal control monitoring delivers significant benefits during annual external financial audits. External audit firms can review continuous audit logs and automated control testing documentation, reducing the time required for manual field testing.
This integrated approach lowers overall audit compliance fees, reduces administrative burdens on corporate accounting staff, and provides senior management and audit committees with real-time visibility into the organization’s overall risk profile.
Core Implementation Guidelines
1. Transition to 100% Data Testing: Replace legacy sampling methods with automated continuous audit monitoring systems.
2. Deploy Anomaly Detection Algorithms: Implement machine learning models to identify unauthorized transactions and operational control overrides.
3. Align Internal and External Audit Workflows: Coordinate continuous control testing protocols with external auditors to optimize annual compliance cycles.
Corporate tax accounting departments are navigating an era of unprecedented regulatory complexity as global tax harmonization frameworks take full effect alongside real-time digital tax reporting mandates. Tax directors and accounting teams are adopting cloud-based tax compliance automation tools to manage multi-jurisdictional tax liabilities and satisfy stringent reporting rules across international jurisdictions.
Implementation of Global Minimum Tax Provisions
The implementation of international tax reform agreements—notably the Pillar Two global minimum tax framework—has reshaped multinational corporate tax planning. Multinational enterprises with consolidated revenues exceeding established thresholds must ensure an effective tax rate of at least 15% across every jurisdiction in which they operate.
Accounting teams are implementing specialized tax calculation modules integrated directly into enterprise resource planning (ERP) platforms. These automated tools calculate effective tax rates per country, identify top-up tax liabilities, and generate standardized compliance documentation required by national tax authorities.
Real-Time Digital Invoicing and E-Reporting Mandates
Tax authorities across Europe, Latin America, and Asia-Pacific have enacted mandatory electronic invoicing (e-invoicing) and continuous transaction controls (CTC). Under these systems, corporate transaction data must be submitted electronically to government portals in real time at the point of sale or invoice issuance.
This shift toward continuous digital tax reporting eliminates traditional annual tax audits in favor of ongoing automated compliance monitoring. Accounting departments are upgrading invoicing software to ensure seamless XML data formatting, digital signature authentication, and real-time validation against tax authority databases.
Automation and Data Analytics in Corporate Tax Strategy
To keep pace with dynamic tax legislation, tax departments are transitioning from reactive compliance teams to proactive strategic advisors. Machine learning algorithms analyze corporate transactional data to identify tax credits, research and development (R&D) incentives, and cross-border transfer pricing adjustments.
By automating routine tax return filings and calculations, corporate tax directors can focus on long-term capital structuring, evaluating the tax implications of corporate mergers, and optimizing international supply chain networks.
Strategic Priorities for Tax Executives
1. ERP System Upgrades: Ensure enterprise software is capable of generating real-time, granular tax data required for global minimum tax compliance.
2. E-Invoicing Integration: Implement scalable e-invoicing platforms to satisfy regional continuous transaction control regulations.
3. Strategic Tax Analytics: Utilize predictive tax modeling tools to evaluate structural changes in corporate operations and cross-border trade.