# 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** ### Adobe Journey Optimizer Adobe Journey Optimizer is a leading customer engagement solution, enabling brands to orchestrate and deliver personalized customer engagement across all channels — including email, web, app, mobile, and more — in the moments that matter to your customers. Profiles and Audiences: Built on the powerful Adobe Experience Platform, Journey Optimizer unifies customer data, creating real-time profiles and audiences that allow marketers to understand behaviors and preferences deeply, ensuring relevant interations at every touchpoint. The platform also prioritizes Data Governance & Privacy with comprehensive tools to help ensure brands are enabled to manage customer data responsibly and compliance with privacy regulations. Journey Orchestration: Harness an intuitive drag-and-drop journey canvas for creating complex, multi-step customer journeys. Marketers can orchestrate and activate messages, offers, and other content in real-time, and across channels, targeting customers based on behaviors, contextual data, business events such as sign-ups, purchases, order status, flight delays, loyalty, and more. Messages and Content: Simplify creating, managing, personalizing and optimizing messages and content through a variety of authoring options from drag-and-drop visual editing to HTML coding. Users can manage, find, and distribute all the digital assets for cross-channel messaging and content creation from one centralized location . The natively embedded, centralized asset repository makes accessing digital assets easy, for faster content creation. . Personalize every messaging element with dynamic content — from subject lines to body copy — ensuring that communications resonate with audiences. Intelligent Optimization: Run experiments and make data-driven decisions, ensuring personalized interactions that align with business goals. Leverage data and AI to determine the next-best offer, test out new offer ideas, and quickly apply learnings across the journey — in real-time and at scale. Experiment with and optimize the impact of your customer engagement — from fine-tuning specifics such as subject lines, body copy, and imagery to updating strategies like channel mix, journey length, engagement frequency and more. Consumers are inundated with marketing — a lot of which gets tuned out. Journey Optimizer lets you cut through the clutter with embedded AI, dynamic content capabilities, and end-to-end journey orchestration so you can anticipate and meet your customers’ needs. [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=2026-08-07T02%3A04%3A52Z&secure%5Bdisplayable_resource_id%5D=1781&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=169941&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=169941&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=472395a012c4cb6151c373577b71b210d45f1e73556b6a7877df63288441898b&secure%5Burl%5D=https%3A%2F%2Fbusiness.adobe.com%2Fproducts%2Fjourney-optimizer.html%3Fsdid%3DMH16S3R3%26mv%3Daffiliate&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? **["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) **["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) #### 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 [Anti Money Laundering Software](https://www.g2.com/categories/anti-money-laundering) [Experience Management Software](https://www.g2.com/categories/experience-management) [Conversation Intelligence Software](https://www.g2.com/categories/conversation-intelligence) [Performance Management Software](https://www.g2.com/categories/performance-management) [Contact Center Workforce Software](https://www.g2.com/categories/contact-center-workforce) 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