# Best Tax Services Providers in Philadelphia, PA ## How Many Tax Services Providers Products Does G2 Track? **Total Products under this Category:** 128 ### Category Stats (Aug 2026) - **Average Rating:** 4.42/5 (↓0.02 vs Jul 2026) The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** 1-800Accountant (+1.98%) - Among all products in this category, 1-800Accountant recorded the largest rating increase compared to last month _Last updated: August 05, 2026_ ## How Does G2 Rank Tax Services Providers Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 900+ Authentic Reviews - 128+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## G2 Grid® for Tax Services Providers ![G2 Grid® for Tax Services Providers plotting products by satisfaction and market presence](https://www.g2.com/categories/tax-services/grids.png?focus%5B%5D=1433018&focus%5B%5D=55613&focus%5B%5D=113590&focus%5B%5D=1405496&focus%5B%5D=1466358&focus%5B%5D=1341283&focus%5B%5D=10751&focus%5B%5D=161000) Highlighted products: Swanson Reed | Specialist R&D Advisors, Pilot, PwC, Inkle, Haven, TaxValet, Indinero, and Zeni. Underlying data: [Grid® JSON](https://www.g2.com/categories/tax-services/grids.json?focus%5B%5D=swanson-reed-specialist-r-d-advisors&focus%5B%5D=pilot&focus%5B%5D=pwc-pwc&focus%5B%5D=inkle-2024-11-18&focus%5B%5D=haven-2025-06-02&focus%5B%5D=taxvalet&focus%5B%5D=indinero&focus%5B%5D=zeni) **Sponsored** ### Savant Labs Savant is an AI workflow automation platform built for enterprise finance, tax, and accounting teams. It turns messy, manual data work like extraction, preparation, reconciliation, and reporting into centrally governed, audit-ready workflows, driving efficiency without sacrificing accuracy, control, or compliance. Savant integrates with your preferred LLM, including Claude, Copilot, ChatGPT, and private LLMs, so you control model choice, data residency, and cost. Ask in plain language for the workflow you want to build, or simply say "run this month's reconciliation," and Savant turns that instruction into a repeatable, governed, auditable workflow. Trusted by Fortune 500 enterprises, Savant catches errors before they're filed, ensures audit readiness without the scramble, and gives finance teams their time back. WHAT SETS SAVANT APART Unlike general-purpose AI tools or legacy analytics platforms, Savant was built specifically for finance workflows where 99% accuracy isn't good enough — because 1% errors at scale become audit findings, restatements, and compliance exposure. Three things make Savant different - Deterministic, not probabilistic: Savant uses rule-based AI agents, not LLM guesses. Consistent inputs produce consistent outputs. - Governance and auditability are built in, not bolted on: Audit trail, data lineage, SOX controls, role-based access, and evidence packs are standard, not add-ons. - Handles the data other tools can't: Native processing for PDFs, scanned documents, and invoices — the unstructured data that breaks legacy workflows. KEY FEATURES - AI-powered workflow automation: Automate any workflow end to end — financial reconciliation, month-end close, tax provisioning, accruals, and more. Works with structured and unstructured data, including PDFs, scanned documents, and ERP extracts. - Reproducible results: AI agents follow step-by-step logic with validation at each stage. Same inputs produce the same outputs, every time — no black boxes, no probabilistic guesses. - Built-in audit trail, data lineage, and evidence packs: Every workflow step is logged automatically. Complete data lineage from source to output. No manual documentation, no reconstructing steps across email chains. - SOX compliance by design: Segregation of duties, version control, approval management, and user activity history are built in from day one. - Human-in-the-loop exception handling: Savant proactively flags exceptions for human review, allowing analysts to catch errors before they reach a filing. The AI learns from human judgments over time. - 500+ enterprise connectors: Connect to your existing ERPs, CRMs, BI platforms, file systems, email, and more out of the box. - Enterprise-grade security: SOC 2 Type II, SOC 1 Type II, ISO 27001. SSO/SAML, role-based access control, private cloud and VPC deployment available. USE CASES - Month-end and year-end close automation - Financial reconciliations and tie-outs - Tax provision preparation - State apportionment calculations - Sales and use tax reconciliation - Data extraction from PDFs, invoices, and scanned documents - ERP data consolidation across multiple systems - Intercompany accounting and multi-entity reporting - Audit evidence package preparation - Recurring reporting and dashboard publishing [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=801&secure%5Bchosen_at%5D=2026-08-08T03%3A35%3A09Z&secure%5Bdisplayable_resource_id%5D=1412&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=1327618&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1327618&secure%5Bresource_id%5D=801&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Ftax-services%2Flocations%2Fphiladelphia-pa-us&secure%5Btoken%5D=7427903947c7695c97102b2b879fb1d7b7919846bfe174e126c755a09a3f4cc9&secure%5Burl%5D=https%3A%2F%2Fsavantlabs.io%2Fplatform%2Fdata-preparation%2F&secure%5Burl_type%5D=custom_url) ### [Ernst & Young](https://www.g2.com/products/ernst-young/reviews) One of the world's leading professional services organizations, helps companies across the globe to identify and capitalize on business opportunities. **Average Rating:** 4.1/5.0 **Total Reviews:** 20 #### Who Is the Company Behind Ernst & Young? - **Seller:** [Ernst & Young (E&Y)](https://www.g2.com/sellers/ernst-young-e-y) - **Year Founded:** 1989 - **HQ Location:** London - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=340d34cb6814593cb6be46462017d68a16b372058fc6a3ec69bc30c2ac8b9ee0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fernstandyoung&secure%5Burl_type%5D=linkedin_company_website) 403,177 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 70% Large, 40% Medium #### What Are Recent G2 Reviews of Ernst & Young? **["Advisory and Implementation"](https://www.g2.com/survey_responses/ernst-young-review-11769267)** **Rating:** 4.0/5.0 stars _— Verified User in Consulting_ [Read full review](https://www.g2.com/survey_responses/ernst-young-review-11769267) **["Good company to work with for rich experience"](https://www.g2.com/survey_responses/ernst-young-review-10658599)** **Rating:** 4.5/5.0 stars _— Aavinashh L._ [Read full review](https://www.g2.com/survey_responses/ernst-young-review-10658599) #### What Are G2 Users Discussing About Ernst & Young? - [Who owns EY India?](https://www.g2.com/discussions/who-owns-ey-india) - [Why is EY famous?](https://www.g2.com/discussions/why-is-ey-famous) - [What is Max Ernst known for?](https://www.g2.com/discussions/what-is-max-ernst-known-for) - [What is Ernst short for?](https://www.g2.com/discussions/what-is-ernst-short-for) ### [KPMG](https://www.g2.com/products/kpmg/reviews) We offer broad management consulting skills including technology enablement. **Average Rating:** 4.2/5.0 **Total Reviews:** 22 #### Who Is the Company Behind KPMG? - **Seller:** [KPMG](https://www.g2.com/sellers/kpmg-e2874d4d-01ea-4fab-aa80-7344e39b9d73) - **HQ Location:** New York - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=6484382897b6c40df8932121e1811ba762577fa5b7c029aabc8189b25bf072fc&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fkpmg-us&secure%5Burl_type%5D=linkedin_company_website) 53,551 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Accounting - **Company Size:** 50% Medium, 36% Small #### What Are Recent G2 Reviews of KPMG? **["KPMG - Right Choice"](https://www.g2.com/survey_responses/kpmg-review-8605228)** **Rating:** 4.0/5.0 stars _— Verified User in Consulting_ [Read full review](https://www.g2.com/survey_responses/kpmg-review-8605228) **["The greatest financial service"](https://www.g2.com/survey_responses/kpmg-review-7640920)** **Rating:** 5.0/5.0 stars _— John M._ [Read full review](https://www.g2.com/survey_responses/kpmg-review-7640920) ### [Grant Thornton](https://www.g2.com/products/grant-thornton/reviews) Grant Thornton is a firm that offers three main service including Audit/Assurance, Tax and Advisory to help organizations pursue growth holistically whether through revenue improvement, leadership, mission fulfillment, or innovation. **Average Rating:** 4.8/5.0 **Total Reviews:** 3 #### Who Is the Company Behind Grant Thornton? - **Seller:** [Grant Thornton](https://www.g2.com/sellers/grant-thornton) - **Year Founded:** 1924 - **HQ Location:** Chicago, Illinois, United States - **Twitter:** @ThorntonBenefit 373 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b6e5e65f1df963cfe91bd14ee1afb9a6588d1f66fc33ce7833dbe4b1f05e48a4&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fgrant-thornton-us&secure%5Burl_type%5D=linkedin_company_website) 11,671 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Large #### What Are Recent G2 Reviews of Grant Thornton? **["Indeed Big 5 !"](https://www.g2.com/survey_responses/grant-thornton-review-7498002)** **Rating:** 5.0/5.0 stars _— Prasad B._ [Read full review](https://www.g2.com/survey_responses/grant-thornton-review-7498002) **["Grant Thornton are trusted advisors whom help us implement industry leading solutions"](https://www.g2.com/survey_responses/grant-thornton-review-9754512)** **Rating:** 4.5/5.0 stars _— Joanthan F._ [Read full review](https://www.g2.com/survey_responses/grant-thornton-review-9754512) #### What Are G2 Users Discussing About Grant Thornton? - [What is Grant Thornton used for?](https://www.g2.com/discussions/what-is-grant-thornton-used-for) ### [EisnerAmper](https://www.g2.com/products/eisneramper/reviews) EisnerAmper is one of the nation's leading audit, tax and advisory firms with offices in NY, NJ, FL, PA, CA and the Cayman Islands. #### Who Is the Company Behind EisnerAmper? - **Seller:** [EisnerAmper](https://www.g2.com/sellers/eisneramper) - **HQ Location:** New York, New York, United States - **Twitter:** @EisnerAmper 4,111 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=fd54778d5dac681b72e456e1173bbe760cc5650276d63577e64b9cd11ebd29ae&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F162443&secure%5Burl_type%5D=linkedin_company_website) 3,966 employees on LinkedIn® ### [Friedman LLP](https://www.g2.com/products/friedman-llp/reviews) Friedman LLP is an accounting and consulting firm that provide services including tax, accounting, auditing, forensic and management advisory services to help publicly/privately held companies and individuals. #### Who Is the Company Behind Friedman LLP? - **Seller:** [Friedman](https://www.g2.com/sellers/friedman-cd1ea5b2-90d5-4aa3-ab91-cc72b22e7ff8) - **Year Founded:** 1924 - **HQ Location:** New York, US - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=d983aac864ffbc6e40f533103a22f588fa38054dc86be27144bae1ec1bd7e983&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ffriedman-llp%2Fabout%2F&secure%5Burl_type%5D=linkedin_company_website) 250 employees on LinkedIn® ### [Marcum LLP](https://www.g2.com/products/marcum-llp/reviews) Marcum LLP is one of the largest independent public accounting and advisory services firms in the nation, with offices in major business markets throughout the U.S., as well as Grand Cayman, China and Ireland. #### Who Is the Company Behind Marcum LLP? - **Seller:** [Marcum](https://www.g2.com/sellers/marcum) - **Year Founded:** 1951 - **HQ Location:** New York, New York, United States - **Twitter:** @MarcumLLP 8,623 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=27c3e90d7423d2e1f9575410aeae6c7a904917f6aaaeb7614ce57e9f8bf2269c&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F21984&secure%5Burl_type%5D=linkedin_company_website) 1,424 employees on LinkedIn® ### [WeiserMazars LLP](https://www.g2.com/products/weisermazars-llp/reviews) WeiserMazars specializes in accounting, tax and advisory with 700 professionals in 10+ US offices. #### Who Is the Company Behind WeiserMazars LLP? - **Seller:** [WeiserMazars](https://www.g2.com/sellers/weisermazars) - **HQ Location:** New York, NY - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® ### [WithumSmith+Brown](https://www.g2.com/products/withumsmith-brown/reviews) WithumSmith+Brown is a firm that empowers clients with innovative tools and solutions to address their accounting, tax and consulting needs it offers deep industry expertise and service experience to help clients grow and thrive to Be in a Position of Strength. #### Who Is the Company Behind WithumSmith+Brown? - **Seller:** [WithumSmith+Brown, P.C.](https://www.g2.com/sellers/withumsmith-brown-p-c) - **Year Founded:** 1974 - **HQ Location:** Princeton, New Jersey, United States - **Twitter:** @WithumCPA 2,711 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=272a43e6dc103a5cb0df1d904ae51e25156d96b0cd22f0e653bbf512024a432d&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fwithumsmith-brown&secure%5Burl_type%5D=linkedin_company_website) 2,753 employees on LinkedIn® Spotlight Categories [Employee Recognition Software](https://www.g2.com/categories/employee-recognition) [Sales Compensation Software](https://www.g2.com/categories/sales-compensation) [Network Monitoring Software](https://www.g2.com/categories/network-monitoring) [Affiliate Marketing Software](https://www.g2.com/categories/affiliate-marketing) [Media Monitoring Software](https://www.g2.com/categories/media-monitoring) Similar Categories - [409A Valuations Providers](/categories/409a-valuations-providers) - [Accounting Firms](/categories/accounting-firms) - [Auditing Services](/categories/auditing-services) - [Bookkeeping Services](/categories/bookkeeping-services) - [Business Process Outsourcing (BPO) Service](/categories/business-process-outsourcing-bpo-service) - [Enterprise Performance Management (EPM) Consultants](/categories/enterprise-performance-management-epm-consultants) - [Financial Consulting](/categories/financial-consulting) - [Investment Firms](/categories/investment-firms) - [Other Business Finance](/categories/other-business-finance) - [Tax Credit Providers](/categories/tax-credit-providers) [Browse Tax Services Themes](/categories/tax-services/themes) ![Nathan Calabrese](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Nathan Calabrese") NC Researched and written by [Nathan Calabrese](https://research.g2.com/insights/author/nathan-calabrese) Updated October 3, 2024 Tax services are offered by firms which specialize in filing and preparing taxes. Often these services are provided by [accounting firms](https://www.g2.com/categories/accounting-firms). Tax firms use their in-depth understanding of complex regulations to offer expertise and guide corporations through the tax process. These services can often save businesses time and money, as well as help ensure legal compliance. Corporations will usually work with firms year-round but will have the most contact in the time leading up to important state and federal tax deadlines. Businesses of all sizes and industries work with these providers and generally assign their accounting departments to coordinate with the firm. Show More