# Best Accounting Firms in Phoenix, AZ

## How Many Accounting Firms Products Does G2 Track?

**Total Products under this Category:** 151

### Category Stats (Aug 2026)

- **Average Rating:** 4.24/5 (↑0.02 vs Jul 2026) The average rating of products in this category, based on all submitted ratings

_Last updated: August 01, 2026_

## How Does G2 Rank Accounting Firms Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 700+ Authentic Reviews
- 151+ 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 Accounting Firms 
 ![G2 Grid® for Accounting Firms plotting products by satisfaction and market presence](https://www.g2.com/categories/accounting-firms/grids.png?focus%5B%5D=55613&focus%5B%5D=161000&focus%5B%5D=113590&focus%5B%5D=1405496&focus%5B%5D=1338&focus%5B%5D=1466358&focus%5B%5D=10751&focus%5B%5D=148954)

Highlighted products: Pilot, Zeni, PwC, Inkle, KPMG, Haven, Indinero, and Collective.

Underlying data: [Grid® JSON](https://www.g2.com/categories/accounting-firms/grids.json?focus%5B%5D=pilot&focus%5B%5D=zeni&focus%5B%5D=pwc-pwc&focus%5B%5D=inkle-2024-11-18&focus%5B%5D=kpmg&focus%5B%5D=haven-2025-06-02&focus%5B%5D=indinero&focus%5B%5D=collective)

**Sponsored**

### GreaseBook

Generate a 6% lift in your net profit margins and approach your most operationally efficient oil & gas production company in 6 weeks or less – all via a simple mobile app 📲 We're talking: 📉 38% reduction in downtime 💰 14% reduction in overhead expense 📈 4% increase in production ⏳ Claw back 2 to 20 hrs per user per week (varying upon responsibilities of user) 🚫 $33K annual savings in preventable errors (salt water spills, oil spills, stripping out wells, injector well blowouts, etc) \*Average Results of Producers who run the Greasebook app in their operations (which means a full HALF of our clients did better! 😄💪🏻) Ready? Set? Good. 🙌 🗣 "At first, I thought transitioning to the GreaseBook would've been tough. We'd done things a certain way for a really long time. But, so far the Greasebooks have been very easy to transfer to. I haven’t had any complaints from the pumpers. I really like how the app makes the pumpers be accountable for the oil. I cant tell you how many times their old gauge sheets would have gauges that were so messed up and then throw a run ticket in there -- it was a nightmare to sort out! With GreaseBook, it makes my guys correct any errors. Thanks for everything!" 👉 Dustin Wyer, Operations | Val Energy | Wichita, KS 🏢🛢 🗣 "Upon beginning, I wasn't sure whether the GreaseBook Oil & Gas Production Software would give us the flexibility we needed with our reporting. However, over the last year, GreaseBook has given me the ability to take on a considerable amount of supervision of the company. Now, I don’t have to rely so heavily on our contract field supervisor. In fact, I compared this year's overhead with that of last year's, and we have been able to reduce our costs by more than half. And, those reduced costs include our this year's GreaseBook charges! Thanks for developing this tool!!" 👉 Susie Agee, Vice President | Marsh Oil & Gas Co. | Pauls Valley, OK 🏢🛢 🗣"I was VERY hesitant to try the GreaseBook software at first. That said, once we got ahold of it I saw just how much time it was going to save us. GreaseBook’s oil sales report with run ticket images alone saves us 3-4 days a month. In fact, we know what our purchaser owes us (and what they’re missing) even before they’ve sent us our statement... Now that they know we're watching our account so closely, we find even less mistakes on their part because they know we’re holding them accountable!" 👉 Bobi Posey, Admin | Phoenix Oil & Gas, Inc | Seminole, OK 🏢🛢 🏆 Oil & Gas Awards Finalist for New Tech Development of the Year 📰 As featured in the American Oil & Gas Reporter 📰 As featured in E&P Magazine 📰 As featured in the Oil & Gas Financial Journal 📰 As featured in SPE's 'The Way Ahead' BE THE OFFICE HERO, STREAMLINE YOUR OPERATIONS, AND DISCOVER WHY SOME OF THE INDUSTRY’S MOST EFFECTIVE OPERATORS RELY ON GREASEBOOK OIL & GAS PRODUCTION SOFTWARE TO DO THEIR BEST WORK 💪🏼 ✅ Focus: From orphan wells to lengthy routes, no matter what form your pumping takes, GreaseBook keeps your pumpers focused on moving those production updates from field to office. ✅ Gather: Easily gather everything that matters. Track tank levels, capture notes, administer well tests, submit photos of scanned run tickets. All from the field. All on your mobile device. All over the cellular network. ✅ Connect: Connect with the people who help you get it all done. Communicate, collaborate, and share in real-time with your guys and gals in the field without ever leaving the GreaseBook. ✅ Access: Access fast, accurate gauge sheets. No need to re-key production or manipulate Excel. Just one click and your production is organized into a beautiful screen-friendly layout. ✅ Everything in one place: The central place for everyone’s work. All the relevant content from well history to run ticket images, easily accessed. ✅ Get paid your due: Compare a month's worth of oil sales tickets vs purchaser statements vs payments received (and find those inconsistencies!) in just seconds. ✅ Knowledge discovery: GreaseBook acts as your operations watchdog, surfacing any unexpected drops in production or incompetence in the oilfield. Imagine a crisp, easy-to-understand, high-level view of your company's field operations... 🤔 When has oil been sold off location? 🤔 How much fluid is that new well producing each day? 🤔 With GreaseBook, you'll have the answers to these questions, and you'll have them in real-time. ⏱🖥 GreaseBook provides you with production information that's not only accessible, but also visual and actionable. 👀 Flick through production charts and graphs.📈 Zoom into specific data sets.📊 No more pen and paper gauge sheets.🙅‍♀️📝 No faxed reports. 🤦🏻‍♂️📠 No "phoning it in". 💁🏻‍♀️📞 No delays. 🤷‍♂️⏰ Built exclusively for the small to mid-sized independent oil & gas operator, GreaseBook is the only mobile app company dedicated to providing a simple mission-critical mobile workflow that makes the largest of operators seethe with envy. 😡🏛 Either download the app straight to your mobile device.📲 Or, have GreaseBook outfit and manage the necessary hardware for you, your admin, your management, and your entire pumping crew. 🤝 We offer a painless and complete field production management solution – lock, stock, and barrel. Turn us on, and go to work.🔥 Do you think we’re crazy? Good. 😉 GreaseBook wants you to know that a new wave is coming, and that we intend to domesticate this technology explicitly for the profit of the independent oil & gas operator.🛢🇺🇸 Click here to learn more: greasebook.com/?comet\_source=G2

[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=797&secure%5Bchosen_at%5D=2026-08-06T07%3A49%3A05Z&secure%5Bdisplayable_resource_id%5D=463&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=12992&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=12992&secure%5Bresource_id%5D=797&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Faccounting-firms%2Flocations%2Fphoenix-az-us&secure%5Btoken%5D=a20d49d45155cf71e4b8c3c0ffabee0a13838172f35d22fc3fb83219fee27014&secure%5Burl%5D=https%3A%2F%2Fgreasebook.com%2F&secure%5Burl_type%5D=product_website)

### [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)

### [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:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=28240f6958c98fc102a7ec2d43986b8e473458d14b5ea3d56e15cd0fb50d4e3b&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Feide-bailly-llp&secure%5Burl_type%5D=linkedin_company_website)  
3,785 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 50% Medium, 50% Small

#### 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)

### [Expertise](https://www.g2.com/products/expertise/reviews)

Expertise VA is a firm that help company to alleviate financial worries and grow business by filtering through receipts, performing financial organization, and training new employees.

#### Who Is the Company Behind Expertise?

- **Seller:** [Expertise](https://www.g2.com/sellers/expertise)
- **HQ Location:** N/A
- **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®

### [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)

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[Browse Accounting Firms Themes](/categories/accounting-firms/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

Accounting firms provide comprehensive financial management services to businesses. By carefully tracking financial information, accounting firms are able to assure legal compliance and advise organizations on financial decisions. Businesses will typically work with these companies year-round but will have the most contact during the generation of quarterly or monthly reports and tax information. Many accounting firms offer [tax services](https://www.g2.com/categories/tax-services) and some firms specialize in taxes entirely. In addition to tracking financial information and providing tax services, accounting firms conduct large-scale examinations known as accounting audits. The purpose of an accounting audit is to systematically review an organization’s accounting process for inefficient, inconsistent, or suspicious procedures and transactions. Like [bookkeeping services](https://www.g2.com/categories/bookkeeping-services), many accounting firms will offer record keeping of a business's day-to-day financial transactions.

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