# Best Tax Services Providers in Denver, CO *By [Nathan Calabrese](https://research.g2.com/insights/author/nathan-calabrese)* 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. ## 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, PricewaterhouseCoopers (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=pricewaterhousecoopers-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) ## How Many Tax Services Providers Products Does G2 Track? **Total Products under this Category:** 123 ### Category Stats (Jul 2026) - **Average Rating**: 4.44/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product**: Baker Tilly (+0.04%) - Among all products in this category, Baker Tilly recorded the largest rating increase compared to last month *Last updated: July 15, 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 - 123+ 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. --- **Sponsored** ### Bizagi Bizagi is an enterprise platform for business orchestration and AI automation, enabling organizations to design, automate, and run complex end-to-end processes that bring together people, AI agents, systems, and data. Unlike point AI tools, Bizagi is the operational layer where AI, processes, and enterprise systems work together: governed, auditable, and production-ready. Built on more than two decades of enterprise process expertise, Bizagi brings the depth of operational knowledge that newer AI platforms simply have not had time to develop. That foundation is what makes Bizagi's AI story credible where others are still experimental. Bizagi's native AI capabilities are built directly into the platform. AI Agents are reusable, GenAI-powered assistants configured in the AI Hub, capable of content generation, document analysis, classification, summarization, and more. They can be invoked from processes, interfaces, or other agents, and integrate via connectors and Model Context Protocol to reach internal and external systems. AI Workers automate repetitive tasks inside forms and workflows by analyzing rules, field history, and process context, operating in supervised or more autonomous modes and improving through reinforcement learning. Ask Ada, Bizagi's conversational analytics assistant, lets users query business data in natural language and receive answers, charts, and insights, all within Bizagi's role and permission model and grounded in both process data and enterprise documents through a built-in RAG knowledge layer. Governance is central, not optional. Bizagi runs on Microsoft Azure with Private OpenAI integration, keeping sensitive data within a secure perimeter. AI features require deliberate configuration and deployment. Generative AI capabilities are intentionally built into workflows rather than casually enabled, and Data Domains, Personas, and Bizagi's role model control precisely what any AI capability can access and how results can be used. Customers see results fast. Stone Coast Fund Services reduced processing time by 80% across more than 25,000 annual service requests, going live in six weeks. Bizagi's AI Ignite packages take organizations from zero to live AI Agents or AI Assistants in approximately seven weeks, combining software and professional services to de-risk early projects. With over 1,000 enterprise implementations across financial services, manufacturing, healthcare, and government, Bizagi is named in the 2025 Gartner Magic Quadrant for Business Orchestration and Automation Technologies (BOAT), Microsoft Certified for AI in Financial Services and Manufacturing, and a G2 leader across Agentic AI, AI Agents for Business Operations, BPM, and Digital Process Automation. Customers include DHL, Unilever, Caterpillar, and Old Mutual. For more information, visit bizagi.com. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=801&secure%5Bchosen_at%5D=2026-07-16T09%3A36%3A46Z&secure%5Bdisplayable_resource_id%5D=1614&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=20785&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=20785&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%2Fchicago-il-us&secure%5Btoken%5D=a4c34473f63b8ab8e0aa28f6f7e2185c751429f23771167d7beea2ba6edecea3&secure%5Burl%5D=https%3A%2F%2Fwww.bizagi.com%2Fen%2Fprocess-orchestration-with-bizagi%3Futm_source%3DG2%26utm_medium%3Dthird_party%26utm_campaign%3DTech-GL-2026_05-Content-G2_Clicks_Orchestration&secure%5Burl_type%5D=custom_url) --- ## What Are the Top-Rated Tax Services Providers Products in 2026? ### 1. [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:** https://www.linkedin.com/company/ernstandyoung (403,177 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 70% Enterprise, 40% Mid-Market #### 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) ### 2. [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:** https://www.linkedin.com/company/kpmg-us (53,551 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Accounting - **Company Size:** 50% Mid-Market, 36% Small-Business #### 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) --- ### 3. [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:** https://www.linkedin.com/company/grant-thornton-us (11,671 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 100% Enterprise #### 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) ### 4. [Eide Bailly](https://www.g2.com/products/eide-bailly/reviews) Eide Bailly provides 54,000 clients across the US with core services of audit & assurance and tax, as well as expanded services. **Average Rating:** 2.5/5.0 **Total Reviews:** 2 **Who Is the Company Behind Eide Bailly?** - **Seller:** [Eide Bailly](https://www.g2.com/sellers/eide-bailly) - **HQ Location:** United States Oval Historic District, New York, United States - **Twitter:** @EideBaillyLLP (2,995 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/eide-bailly-llp (3,785 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 50% Mid-Market, 50% Small-Business #### What Are Recent G2 Reviews of Eide Bailly? **"[Their robust business analysis and sprint performance was most impressive.](https://www.g2.com/survey_responses/eide-bailly-review-4370550)"** **Rating:** 5.0/5.0 stars *— Jan N.* [Read full review](https://www.g2.com/survey_responses/eide-bailly-review-4370550) --- #### What Are G2 Users Discussing About Eide Bailly? - [What is Eide Bailly used for?](https://www.g2.com/discussions/eide-bailly-what-is-eide-bailly-used-for) - [What is Eide Bailly used for?](https://www.g2.com/discussions/what-is-eide-bailly-used-for) ### 5. [Watson & Company](https://www.g2.com/products/watson-company/reviews) Watson & Company is an accounting firm that provides services to help bsiness increase profitability, increase taxes, tax notices or surprises, or simply need more time in their day. **Who Is the Company Behind Watson & Company?** - **Seller:** [Watson & Company](https://www.g2.com/sellers/watson-company) - **HQ Location:** Centennial, US - **LinkedIn® Page:** https://www.linkedin.com/company/radish-accounting/ (3 employees on LinkedIn®) ## What Is Tax Services Providers? [Business Finance Providers](https://www.g2.com/categories/business-finance) ## What Software Categories Are Similar to Tax Services Providers? - [Accounting Firms ](https://www.g2.com/categories/accounting-firms) - [Bookkeeping Services Providers](https://www.g2.com/categories/bookkeeping-services) - [Financial Consulting Providers](https://www.g2.com/categories/financial-consulting)