Our agency experts identified the best-performing Seattle accounting firms to help you find top-quality and reliable services for your business. Use the filters or sort by cost, size and reviews to choose the most suitable agency partner in a couple of clicks.
Best Seattle Accounting Company Rankings
9 Companies - Rankings updated: April 01, 2026
DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.
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Dimov Tax offers expert domestic and international tax and financial services, including individual and business tax preparation, cryptocurrency and stock taxation, IRS/state notice resolution, forensic accounting, M&A consulting, property management accounting, CPA letters, and tailored strategies. [... see all Dimov Tax reviews ]Top Services:
- Accounting
- Payroll
- Bookkeeping
- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDimov Tax Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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Audit Accounting Project for Energy & Mining Company All Choice Energy, LLC 
Audit Accounting Project for Manufacturing Company TEDA TPCO America Corporation 
Audit Accounting Project for Retail Company United Wholesale LLC 
Audit Accounting Project for Corporate Services Company Backcountry Broadband LLC
Reviews verified by DesignRush and sourced from the agency's profileDimov Tax Reviews & Testimonials
Accounting Review from Dmitrii Legetskii
This company helped us set up our accounting system from beginning to end. I am a serial entrepreneur with experience working with many different accounting groups and this one has been the most responsive overall. They have helped us with registering the business, putting together payroll, and getting our quarterly tax returns filed. They have been also very helpful with giving personal tax advice. I would recommend them to any other friends and especially other business owners.
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Accounting Review from Setty McIntosh
Services 2 years in a row. George Dimov is now my C.P.A. Excellent, organized, thorough and timely. We were impressed with their patience, courteousness, and efficiency.
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Accounting Review from Undisclosed
They were easy to deal with. George Dimov, CPA successfully delivered the project as per the client's requirements. The service provider utilized Email and messaging apps for effective responsiveness and communication. They were also easy to work with. Ultimately, the client was satisfied with the partnership.
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Data sourced from the agency's DesignRush profileGoogle Apple Cisco Ebay Uber PayPal
IT, Business, BPO, Audit, Tax and Advisory are just the beginning.
Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and [... view Grant Thornton profile ]- Location
- Seattle, Washington
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGrant Thornton Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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Financial Accounting Project Finance modernization for data-driven expansion -thumb-webp.webp)
Business Operations Consulting Project A new procurement paradigm at BDTX
Reviews verified by DesignRush and sourced from the agency's profileGrant Thornton Reviews & Testimonials
Theodore Mall's Review Sourced from Google
One of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenues in excess of $1.9 billion and operates more than 50 offices.
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Data sourced from the agency's DesignRush profileFinancial industry Real estate industry Media and Entertainment industry
Get More Out of Your Business.
Accountability Services is a boutique accounting and advisory firm based in Seattle, Washington, and Lafayette, Colorado. Specializing in proactive tax planning, financial analysis, and business consulting, the firm partners with entrepreneurs and small business owners to enhance financial clarity and drive [... view Accountability Services profile ]- Location
- Seattle, Washington
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAccountability Services Services
Reviews verified by DesignRush and sourced from the agency's profileAccountability Services Reviews & Testimonials
Barbie Hull's Review Sourced from Google
Accountability Services is a company I am MORE than happy to share my experiences with the world! They have truly transformed the way I view AND manage my finances.From the very first interaction, it was evident this team is not only knowledgeable but also genuinely passionate about helping businesses like mine (and yours!) succeed.One of the standout features in my opinion is their dedication to personalized service. From the beginning they took the time to understand the unique needs of my business, tailoring the approach to fit my specific companies requirements - my favorite part is I never once felt judged about being behind or not understanding the exciting details of bookkeeping!Lera & Jenn’s proactive communication is definitely worth mentioning! They keep me updated on regulatory changes and let me know if the changes will be changing how I do things day to day.In summary, Accountability Services has gone above and beyond in every way possible. Their expertise, personalized service, and innovative use of technology make them an invaluable partner. I wholeheartedly recommend them to anyone seeking reliable and professional financial management services!
Show moreJames C's Review Sourced from Google
Great experience with Ernie Villany and the team at Accountability Services. From tax planning advice, strategic advisory, filing annual returns on time, to the responsiveness of the team - I couldn’t be happier with my choice. Highly reccomended.
Show moreKatie Freeman's Review Sourced from Google
Ernie and the team at Accountability Services handled my affairs with a great deal of care and consideration. My situation was somewhat complicated, yet Ernie took the time to patiently address all of my concerns thoroughly. I’m extremely satisfied with the outcome. I look forward to entrusting my taxes with Accountability Services in the years to come.
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Data sourced from the agency's DesignRush profileFinance Industry Real Estate Industry Software & IT Services Industry
Spend Less Time Worrying, More Time Growing.
CentsIQ delivers tailored Bookkeeping, Advanced Analytics, Fractional CFO, Quality of Earnings (QoE) solutions to fuel your growth and maximize profitability. [... view CentsIQ profile ]- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCentsIQ Services
Data sourced from the agency's DesignRush profileSoftware & IT Industry Corporate Services Industry Consumer Goods Industry
Collaborating for Lasting Impact in Business Consulting
Join us at Deloitte, where we believe that our collective influence is the cornerstone of our value. With a rich legacy spanning over 175 years and a global network encompassing 150 countries, we empower remarkable achievements, solve complex problems, and drive meaningful progress for clients, professionals [... view Deloitte profile ]- Location
- Seattle, Washington
- Number of Employees
- 1000 & Up
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDeloitte Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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Business Consulting Project How Deloitte helped a large fast food company become a leader in sustainability. -thumb-webp.webp)
Business Operations Consulting Project Not zero Modelled Reimagined Simplified Net zero -thumb-webp.webp)
Strategy Consulting Project Lagging Shifted Coached Moved Leading -thumb-webp.webp)
Business Consulting Project From Monitor to Protect
Reviews verified by DesignRush and sourced from the agency's profileDeloitte Reviews & Testimonials
InlineAdam's Review Sourced from Google
So sphiscated accounting systems I must say. For what? Never saw an irs payable in any return they asked me to prepare although I’m no licensed accountant. No names no whistle just a honest google review. Makes me wonder what an accountant does, cooking books or AICPA reporting them. No mark up in my basis. The roc building is beyond comprehension though, they even do SNL up or down stairs never got to see a show so I don’t know
Show moreModernfoldStyles, Inc.'s Review Sourced from Google
We are proud to have been able to offer a beautiful Modernfold panel recovery job to give the walls a facelift to complete newly renovated meeting rooms at Deloitte in Rockefeller Plaza. Deloitte has always been such a great and dear client of ours! We look forward to continuing to work together in the future!
Show moreAlex Stackhouse's Review Sourced from Google
Deloitte completely failed implementation of Army IgnitEd, which led to thousands of service members paying out of pocket for education expenses. The circus that we watched unfold leaves me with zero confidence in the services that this firm provides.
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Data sourced from the agency's DesignRush profileFinancial industry Government Sector IT industry Manufacturing industry Telecommunications industry
Business & Technology Solutions
Withum can be the new business advisor relationship you need to inspire innovation for your growth and success. Experience a fresh perspective on embracing what you’ve learned and refocusing your business strategy to thrive in an evolving, complex business environment. Whether you’re looking to strengthen [... view Withum profile ]- Location
- Seattle, Washington
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWithum Services
Reviews verified by DesignRush and sourced from the agency's profileWithum Reviews & Testimonials
Jerome Wong's Review Sourced from Google
We have had the pleasure of working with Withum for our annual audit engagements and have been impressed by the high standard of service provided. The audit team has demonstrated exceptional professionalism, with auditors who are clearly experienced, knowledgeable, and efficient throughout the entire process.
Show moreJonathan Hunt's Review Sourced from Google
The Withum team has been very responsive and met all of their deadlines. They have demonstrated their knowledge and understanding of our industry which has been beneficial with some of our more complicated transactions. We have appreciated their communications throughout the engagement and the ease of being able to connect with the partner, manager, and other staff members.
Show moreJohn Gilmer's Review Sourced from Google
The entire Withum Team, Audit, Tax and M&A Services, is great. We have been with them back to the OUM days. They have always partnered well with our company as it has evolved and our organization and processes have matured. They are incredibly responsive, professional and tuned in to our specific business requirements.
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Data sourced from the agency's DesignRush profileFinance Industry Healthcare Industry Legal Industry Construction Industry Consumer Goods Industry
Global Business Consulting Excellence
Protiviti is a global consulting firm that offers deep expertise, objective insights, and tailored solutions to empower leaders in tackling future challenges. With a comprehensive range of services spanning finance, technology, operations, data, analytics, governance, risk, and internal audit, we serve [... view Protiviti profile ]- Location
- Seattle, Washington
- Number of Employees
- 1000 & Up
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsProtiviti Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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Compliance Consultancy Project A strategic co-sourcing partnership: Healthcare system chooses Protiviti as its trusted adviser in internal audit and compliance -thumb-webp.webp)
Business Consulting Project Strong, flexible identity and access management, built collaboratively
Data sourced from the agency's DesignRush profileKnowBe4 Resolver PowerSchool
Full Service Accounting & Business Consulting Firm
BPM is a full-service accounting and consulting firm deeply experienced in assurance, tax and business advisory. With over 40 committed partners leading these groups, we deliver the resources, expertise and business insight that produce outstanding results for clients. [... view BPM profile ]- Location
- Seattle, Washington
- Number of Employees
- 500 - 999
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBPM Services
Reviews verified by DesignRush and sourced from the agency's profileBPM Reviews & Testimonials
Carlos Romer's Review Sourced from Google
The partner and the team are top-notch professionals making the entire process very seamless and smooth. Their knowledge and experience prove invaluable to our business.
Show moreSergio Nunes's Review Sourced from Google
I had an excellent experience with BPM. I recently switched auditors and BPM was able to identify errors and streamline some business processes for our finance team. I had such a good experience working with BPM's auditors that I decided to add them as our Tax CPA's as well. Great service and very knowledgeable staff with many from Big 4. Good value too with low fees vs Big 4.
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Data sourced from the agency's DesignRush profileIT Industry Real Estate Industry Financial Service Industry
Building A Better Working World
EY offers Accounting, Business Consulting, and IT Services with a mission to build a better working world. It provides insights and quality services that instill trust in global capital markets and economies. EY focuses on developing exceptional leaders who deliver on their commitments to all stakeholders [... view EY profile ]- Location
- Seattle, Washington
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEY Services
Data sourced from the agency's DesignRush profileQiagen Apple ASOS Microsoft Wawa
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About The Author and Expert Reviewer
Natasa Glikman is an experienced editor and content writer with over 10 years of experience in writing, editing, and translating articles across various topics, with a strong focus on marketing and advertising. At DesignRush, Natasa currently works as an editor, where she refines and enhances B2B content to ensure accuracy, clarity, and consistency across agency profiles and industry reports.
Dušan Milutinović is a finance expert with an MBA from Purdue University in the U.S. He has gained over 15 years of experience from his roles as the CFO of Serbia Broadband, Board Member of Hemofarm AD, General Manager of STADA, and Consultant at IFC (Member of The World Bank), as well as KPMG (BearingPoint). He is currently the Senior Finance Manager at DesignRush, overseeing the company's finance, administration, and reporting processes.
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