Independent audit & assurance
Trusted audit & assurance since 2001
At Silverstone Audit, we audit financial statements and provide accounting support for companies and projects, helping boards, management and funders rely on numbers that are complete, fairly presented and decision-ready.
Founded in 2001 and based in New York, we are an independent practice. Our work covers audits of annual financial statements, project and grant audits, internal audit and controls, accounting and bookkeeping, U.S. GAAP and IFRS reporting, tax advisory and business advisory. Engagements are planned and performed with reference to the professional frameworks used in the United States, including generally accepted auditing standards (GAAS) and, where the financial statements are prepared on that basis, U.S. GAAP. For international clients we also work with IFRS.
We take time to understand the entity, agree the scope in writing, and raise findings as they arise. The aim is a report you can stand behind, and a process that is orderly for your finance team as well as for ours.
Our services
Project audits
Donor & grant-funded projects
Expenditure verification
Funder-aligned reporting
US GAAP & IFRS reporting
U.S. GAAP financial statements
IFRS reporting for international clients
Technical accounting papers
Internal audit & controls
Outsourced internal audit
Controls walkthroughs
Risk-based audit plans
Business advisory
Budgets & cash-flow reviews
Finance-function health checks
Lender readiness reviews
Industries we serve
Companies and projects across a range of sectors
We provide audits for private equity, construction, real estate, renewable energy, oil and gas, non-profit organizations, legal services, tourism, education, and more. Each of these sectors has its own reporting questions; the notes below explain the challenges we typically see and how we approach the work.
Private Equity
Independent audits and financial reporting reviews for funds, portfolio companies, and investment vehicles.
Construction
Audits of contractors and project vehicles, covering contract accounting, retentions, and milestone billing.
Real Estate
Assurance for property companies, developers, and investment vehicles, with attention to assets and rental income.
Renewable Energy
Audits for power producers and project companies in solar, wind, and other renewable energy structures, including tax-credit and tax-equity reporting questions.
Oil and Gas
Independent audits of U.S. operators and service companies across oil, gas, and related project structures.
Non-profit Organizations
Audits for 501(c)(3) and other nonprofits, including Uniform Guidance (Single Audit) work where federal awards are expended.
Legal Services
Statutory audits and accounting support for law firms and legal practices, including partnership reporting.
Tourism
Audits for hospitality, travel, and tourism operators with seasonal revenue and multi-location reporting.
Education
Audits of schools, colleges, and education providers, covering tuition, grants, and statutory reporting.
And more
We also work with organizations in other sectors. Get in touch to discuss an audit in your industry.
Private Equity
Private equity and investment structures often involve funds, holding companies and portfolio entities, each with its own reporting calendar, valuation questions and investor reporting needs. Audits in this sector have to look carefully at the substance of transactions, the treatment of investments and fair value, management fees and carried interest where they arise, and the way group information is assembled for investors and lenders.
We audit and review financial information for funds, portfolio companies and related investment vehicles, and we coordinate work across entities when a group or parallel set of reports is required. Our aim is to give those charged with governance, and the investors who rely on the figures, a clear view of whether the financial statements are fairly presented under the applicable framework, typically U.S. GAAP, or IFRS where that is the framework required by international investors or a foreign parent.
Construction
Construction and contracting businesses are shaped by long-term contracts, mobilization payments, retentions, variation orders, claims and the timing of profit recognition. These features make cutoff, work in progress and contract asset or liability balances some of the more judgemental areas in an audit, and they often sit alongside performance bonds, advances and project-level cash controls.
We audit contractors, subcontractors and project vehicles with these contract-accounting issues in mind. Our work typically addresses how revenue and costs are measured on contracts, whether retentions and claims are recognized on an appropriate basis, and whether project records support the balances in the financial statements. The result is reporting that a board, lender or joint-venture partner can read with a clearer understanding of contract performance.
Real Estate
Property companies, developers and real-estate investment vehicles hold assets whose value, rental income, development costs and financing structures need careful measurement and disclosure. Inventory versus investment-property classification, borrowing costs, related-party lettings and the timing of revenue on property sales are recurring points of focus in this sector.
Our audits of real-estate businesses pay particular attention to the recognition and disclosure of property assets, rental and service-charge income, development work in progress and the debt that often accompanies a portfolio. We also consider the disclosures that users need in order to understand valuation bases, commitments and related-party arrangements, so that the financial statements present a coherent picture of the property operation.
Renewable Energy
Renewable energy projects — including solar, wind and other power structures — are frequently set up as project companies with construction phases, offtake arrangements, financing covenants and, later, operating revenues. Reporting has to capture capitalization of project costs, the point at which assets are ready for use, tariff or offtake income, and the terms of the financing that underpins the project. In the United States, investment and production tax credits, tax-equity structures and related disclosure are often material to how a project is financed and reported.
We provide audits for project companies and operators in the renewable energy sector, from development and construction through to operations. Engagements are planned around the stage the project has reached, the reporting required by lenders or investors, the treatment of renewable energy tax credits where they apply, and the framework under which the financial statements are prepared, typically U.S. GAAP. The work is designed so that sponsors, boards and financiers can rely on figures that reflect the substance of the project.
Oil and Gas
U.S. oil and gas operators and service companies deal with joint interest arrangements, well or contract costs, lifting or service revenue, royalty and production taxes, and, in many cases, complex group or contractual structures. Measurement of property, plant and equipment under U.S. GAAP, asset retirement obligations where they exist, and related-party or joint-venture balances often require particular care.
We audit operators and service companies across oil, gas and related project structures, focusing on the transactions and balances that matter for the entity in front of us rather than on a generic industry checklist. The work is carried out with reference to generally accepted auditing standards and the financial reporting framework adopted by the entity, typically U.S. GAAP, so that boards and other users receive an independent opinion on a consistent basis.
Non-profit Organizations
U.S. nonprofits, including 501(c)(3) organizations, foundations and implementing partners, are commonly accountable both for financial statements and for donor or grant reports prepared under specific financing agreements. Restricted funds, contribution revenue, procurement rules, and the cutoff of program expenditure are typical areas of attention. Organizations that expend federal awards may also be subject to a Single Audit under the Uniform Guidance, and the audience for the report often includes boards, donors and, in some cases, regulators.
We undertake financial statement audits and project or grant audits for nonprofit organizations, including Single Audit work under the Uniform Guidance where federal awards are expended. The terms of each funder agreement are kept in view alongside the applicable financial reporting framework, typically U.S. GAAP. Our reports are written so that boards and the partners who fund the work can see how funds have been accounted for and whether the financial statements or the special-purpose report are fairly presented in accordance with the agreed basis.
Legal Services
Law firms and legal practices often operate as partnerships or professional companies, with revenue recognized on billings or work in progress, client accounts that must be kept distinct from office funds, and partner or director remuneration that needs clear presentation. Users of the financial statements may include partners, lenders and, where relevant, regulatory or professional bodies.
We provide financial statement audits and accounting support for legal practices, with attention to fee income, work in progress, client trust account (including IOLTA) presentation and the way drawings or remuneration are reflected in the financial statements. The engagement is planned around the firm’s structure and reporting needs, so that partners and those charged with governance receive financial statements they can use for decision-making as well as for compliance.
Tourism
Hospitality, travel and tourism operators often have seasonal revenue, advance deposits, multi-location operations, inventory and a high volume of cash or card transactions. Revenue cutoff, agency versus principal presentation, loyalty or package arrangements, and fixed-asset maintenance programs are among the issues that can affect the financial statements.
We audit hotels, travel operators and other tourism businesses with these operating patterns in mind. Procedures are designed around the revenue cycle, deposits and advances, location-level reporting and the assets used in the operation, so that the financial statements reflect a full season of activity rather than a narrow snapshot. Boards and owners then have a more reliable basis for reviewing performance and financing.
Education
Schools, colleges and other education providers typically receive tuition fees, sometimes alongside grants, donations or government support. Deferred income on fees billed in advance, scholarship or concession arrangements, payroll, and the stewardship of restricted funds are common reporting issues, and a wide group of stakeholders may rely on the accounts.
Our audits of education providers address tuition and related income, grant or donation accounting, payroll and the presentation of restricted and unrestricted funds where these distinctions apply. The work is planned so that boards, proprietors and, where relevant, funders receive financial statements prepared on a consistent basis and independently examined under generally accepted auditing standards.
We also work with organizations in other sectors. If your industry is not listed here, get in touch to discuss an audit or a related engagement.

Building confidence in your numbers
We take time to understand your business, your reporting framework and the people who rely on your accounts, then plan every engagement around them.
Independent judgment
Engagements are planned so our conclusions stay objective.
Clear communication
Findings are raised early and explained in plain language.
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Planning
We agree the scope, timetable and information we will need, so the engagement starts with a clear plan rather than a rush into the records.
Risk assessment
We identify the balances, transactions and disclosures most likely to contain material misstatement, and we design our procedures around them.
Fieldwork
Our team examines records, obtains evidence and raises questions as they arise, so findings are discussed during the work rather than only at the end.
Reporting
We discuss our findings with management, then issue the agreed reports — typically an auditor’s report and a management letter, or the project report specified in the terms.
Follow-up
After the report is issued, we remain available to walk through recommendations and to help you prepare a smoother process for the following period.
Planning
Every engagement begins with planning. We take time to understand the entity or project, the applicable reporting framework, the people who will rely on the report, and the dates that matter to the board, lenders or funders. Scope, responsibilities and a realistic timetable are agreed in writing before detailed testing begins. We also agree the information we will need from management, and the points at which we will update you as work progresses. Good planning reduces last-minute pressure and helps both teams work in an orderly way.
Risk assessment
Once we understand the entity, we assess the risks of material misstatement in the financial statements or, for a project review, in the expenditure and compliance areas covered by the terms of reference. This includes considering the business and its environment, the design of relevant internal controls, and areas that typically require judgment — such as revenue recognition, estimates, related-party transactions and going concern. The audit or review plan is then focused on those risks, so effort is concentrated where it will make the most difference rather than spread thinly across every account.
Fieldwork
Fieldwork is the stage at which we obtain the evidence that will support our report. Depending on the engagement, this may include inquiry of management, inspection of documents, analytical procedures, confirmations, observation and substantive testing of transactions and balances. We work as far as possible from records that are already organized, and we raise questions and interim findings as they arise so that surprises are dealt with during the assignment, not in the final week. Fieldwork may take place at your premises, at our office in New York, or through a combination of on-site and remote work, agreed during planning.
Reporting
When testing is complete, we evaluate the evidence as a whole, form our conclusions and discuss significant findings with management and, where appropriate, those charged with governance. For a statutory audit, the formal deliverable is the independent auditor’s report on the financial statements, usually accompanied by a management letter that records control observations and recommendations. For project or special-purpose work, we issue the report format required by the funder or the agreed terms of reference. We aim to explain our findings in clear language, so the report is useful as well as compliant.
Follow-up
Issuing the report is not the end of a useful engagement. We walk management through the observations in the management letter or project report, distinguish between matters that need prompt attention and those that can be planned into the next cycle, and remain available to clarify our findings. Where we are reappointed, lessons from the current period inform planning for the next one — including information requests, cutoff procedures and any control improvements you have made. Follow-up is practical: the aim is a clearer file, fewer recurring adjustments, and a more orderly engagement the next time around.
Standards and regulation
The frameworks we work to
We plan and perform our work with reference to recognized professional frameworks used in the United States. Mention of a body or a standard describes the environment in which we practice. It is not a claim of a specific accreditation, license or membership; those are stated on this site only when they can be verified.
U.S. GAAP
The financial statements we examine are commonly prepared under U.S. GAAP. For international clients and groups that also report under IFRS, we work with that framework as well.
GAAS (AICPA)
Our audits are planned and performed with reference to generally accepted auditing standards (GAAS) issued through the AICPA. Mention of those standards describes the professional environment in which we work; it is not a claim of membership or of a specific accreditation.
PCAOB
Where an engagement relates to a public company, or is otherwise within the PCAOB’s remit, we plan the work with PCAOB auditing standards in mind. This describes the regulatory environment; it is not a claim of PCAOB registration.
IRS & NY State tax
Tax computations and filings, where they are in scope, are prepared with reference to federal IRS requirements and to New York State and, where relevant, local tax rules.
Uniform Guidance
For nonprofits and other entities that expend federal awards, we work with the Single Audit requirements of the Uniform Guidance (2 CFR 200, Subpart F), as they apply to the engagement.
SOC reports
Where a service organization’s controls matter to user entities or to their auditors, we can discuss SOC 1 or SOC 2 reporting as part of a clearly scoped engagement. Mention of SOC reports is not a claim of a specialist accreditation.
Questions we are often asked
Audits, timelines, documents and fees
Straightforward answers about how an engagement with Silverstone Audit typically works. If your question is not listed, contact us.
A statutory audit is an independent examination of an entity’s annual financial statements, resulting in an auditor’s report that gives an opinion on whether those statements are fairly presented in accordance with the applicable financial reporting framework. In the United States, many companies and other reporting entities are required to have their financial statements audited by the terms of a lending or investment agreement, by a board or investor policy, or, for certain nonprofits, by state law or by the Uniform Guidance when federal awards are expended. Public companies are subject to additional requirements, including PCAOB standards where they apply. Others choose to have an audit because shareholders, boards or counterparties want the assurance that comes with an independent opinion. If you are unsure whether an audit is required in your circumstances, we will talk through the position with you at the outset.
The timetable depends on the size and complexity of the entity, the quality and completeness of the records, whether it is a first-year engagement, and how quickly information is provided. A straightforward audit of a well-prepared set of records may be completed in a matter of weeks from the start of fieldwork; a group, a first-year appointment, or an entity with significant estimates and many locations will take longer. During planning we agree a timetable with you, including dates for receiving the trial balance and supporting files, for fieldwork, and for issuing the report. Delays in receiving information are the most common reason a timetable slips, so we are explicit about what we need and when.
We provide a tailored information request at the planning stage. In most audits this includes the trial balance and general ledger, draft financial statements if they exist, bank statements and reconciliations, receivables and payables listings, inventory records where relevant, fixed-asset registers, loan and tenancy agreements, payroll summaries, board minutes, and supporting documents for significant or unusual transactions. For a project or grant audit we also request the financing agreement, budgets, procurement records and the reports already prepared for the funder. The better organized the file, the more efficiently we can complete the work, and we are happy to discuss the request with your finance team before fieldwork begins.
Our fees are based on the scope of the engagement, the size and complexity of the entity or project, the reporting framework, the number of locations, whether it is a first-year audit, and the condition of the underlying records. We provide a written proposal that sets out the scope, the team approach, the timetable and the fee basis before you appoint us, so there is a clear understanding on both sides. Fees are quoted in U.S. dollars. We do not publish standard prices, because no two engagements are the same. If the scope changes materially — for example, because a subsidiary is added or records are not ready — we will discuss the effect on the fee with you rather than let it become a surprise at the end.
A statutory (external) audit is an independent opinion on the financial statements for the benefit of shareholders and other users. Internal audit is a review, usually for management and those charged with governance, of controls, processes and risks inside the organization. The two engagements have different objectives, different addressees and different reporting styles. We offer both, and we will tell you honestly if a particular combination of services would not be appropriate for the same entity because of independence rules that apply to statutory auditors.
Yes. Project and grant audits, and related expenditure reviews, are a core part of our work. These engagements are scoped to the financing agreement and to the reporting pack the funder requires, which may differ from a full financial statement audit of the implementing organization. For entities that expend federal awards, this may include a Single Audit under the Uniform Guidance. We typically examine whether reported expenditure is supported, whether funds have been used in line with the agreed terms, and whether the special-purpose report is prepared on the agreed basis. If your organization also needs an audit of its own financial statements, we will explain how the two assignments relate and how they can be scheduled.
Our audit work is planned and performed with reference to generally accepted auditing standards (GAAS) issued through the AICPA. Where an engagement relates to a public company, or is otherwise within the PCAOB’s remit, we plan the work with PCAOB auditing standards in mind. Financial statements we examine are commonly prepared under U.S. GAAP; for international clients and groups that also report under IFRS, we work with that framework as well. Tax computations and filings, where that work is in scope, are prepared with reference to federal IRS requirements and to New York State and, where relevant, local tax rules. For nonprofits that expend federal awards, we work with the Single Audit requirements of the Uniform Guidance. Mention of a body or a standard describes the professional environment in which we practice; it is not a claim of membership, registration or a specific accreditation. The precise framework for each engagement is agreed in the terms of engagement.
A first-year audit involves additional work, because we have to obtain an understanding of the entity, its opening balances and its accounting policies, and we may need to communicate with the previous auditor where that is appropriate and permitted. You can help by making prior-year financial statements, management letters, accounting-policy papers and lead schedules available early, and by introducing us to the people who know the systems and the estimates. We will set out a first-year plan that is realistic about this extra work, so the timetable is not built on an assumption that everything will run as it would in a recurring engagement.
We agree the working arrangement during planning. Many engagements combine time at the client’s premises with work from our office in New York and secure exchange of records. We nominate a clear contact on our side and ask you to do the same, so questions have a single path and do not scatter across the organization. We prefer to raise issues as we find them, in language that a finance lead can act on, rather than to accumulate a long list for a single closing meeting. The tone of the work is professional and direct: we are independent of management, but we are not distant from the practicalities of closing the books.
For a statutory audit, you receive the independent auditor’s report on the financial statements and, in the ordinary course, a management letter setting out control observations and recommendations. We also discuss significant findings with management and, where appropriate, with those charged with governance. For a project or special-purpose engagement, you receive the report specified in the funder terms or in our engagement letter. If we have been engaged for accounting, tax or advisory work rather than an audit, the deliverables are those agreed in the terms — for example management accounts, tax computations, or a written set of findings and recommendations.
We provide accounting, U.S. GAAP and IFRS reporting, tax advisory and business advisory services as well as audit. Where we are the statutory auditor of an entity, however, independence requirements may limit the additional services we can provide to that same entity. We will tell you at the proposal stage if a requested combination of work would conflict with those requirements, and we will suggest a scope that protects the independence of the audit. For entities that are not our audit clients, we can usually provide a wider range of accounting and advisory support.
As a guide, it is better to appoint the auditor and complete planning well before the year-end, especially if this is a first-year engagement or if you have a lender, funder or board deadline. Getting in touch two to four months before the reporting date gives time to agree the timetable, issue the information request, and address bookkeeping or cutoff issues while they are still easy to fix. If your year-end is already close, still contact us: we will tell you honestly what is realistic for the current period and what would be better planned for the following one.
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