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Numbercrunchers
“Number Crunchers is awesome and so is their entire staff, Especially Paula and D.”
Best Bookkeeping Services in Simi Valley, CA
24 companies listed · 4 in Simi Valley · 7 open weekends · 19 rated 4.5+ · 1 shows a license
Data verified October 18, 2026
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Strategic Financial Reporting
“We would love to take these important tasks off your plate so that you can focus on the daily operations of your business. We'll keep you updated with relevant financial data that your business needs to run smoothly, limit expenses, and capitalize on...”
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D&Q Tax and Consulting
“The best thing is that I feel that he knows and remember all the details of what has happened with my personal situation and for the business and he always has the best advice”
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Klein & Rebbe Tax and Accounting Services
“Not afraid to give you the good and the bad news.”
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The Bean Counters
“To deliver excellent customer service we focus on your specific needs. We offer a full range of professional services, and provide the individual attention that you deserve.”
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K & R Services Unlimited
“We specialize in handling tasks that free you to focus on what needs your personal attention most. In any business, "You have to let it go if you want to grow" is more than a phrase... it's essential, and we make sure your current business runs smoot...”
The 24 companies listed for Simi Valley, CA keep books, reconcile accounts and close the month for businesses. What each says about its packages and software comes from its own website; ratings and quotes come from public reviews.
Area overview: Simi Valley, CA
4 of the 24 companies we list are based in Simi Valley; the other 20 serve Simi Valley from towns including Thousand Oaks (9 mi), Valencia (15 mi) and Westlake Village (10 mi). 20 of the companies on this page have a rating, from 4.3 to 5.0 across 357 reviews; 1 has 50 or more reviews and 19 are rated 4.5 or higher. When clients rate these companies on specific qualities, they most often praise professionalism (97%), responsiveness (84%) and quality (81%). 6 are open on Saturdays and 4 on Sundays. The services the companies on this page list most often on their websites are business services (4), tax preparation (4), tax services (4), quickbooks services (3) and accounting services (2). 1 shows a license on its website and 6 have a BBB rating of A or A+. 16 have ten or more years of experience, the longest 44 years. 1 offers remote or virtual consultations; 2 offer payment plans; 8 offer a free initial consultation and 2 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book a consultation.
Can I request help online from bookkeepers listed for Simi Valley?
6 of the 24 companies take inquiries or appointment requests through their own website. A company without that option works by phone or email. Whichever you use, say what software you run and roughly how many transactions a month you have. It is what decides the price.
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Periscope Money
“At Periscope, we value our relationships with our clients. We want our clients to feel relief when we partner with them. We're always here to answer your questions and provide you with the financial reports and data you need to get things done.”
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The Rosson CPA
- Communication
- Accountant
- Team
“Lauren was so kind and so friendly and helped to answer all of my questions while also giving me ideas of how to minimize tax liability going into future years.”
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MBA Financial & Accounting Solutions
- Financials
- Team
“Mark and his team have helped me start my fitness business, from the entity structure, to setting up my quickbooks and more importantly monthly overview of my financials.”
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Premier Tax & Finance
- Number
- Questions
- Financial
“I usually start uploading documents as soon as we have both W2s, and once I upload the last tax statement I receive (that I know of), they are about done with everything.”
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John E. Bennett, CPA
- Laws
- Questions
“My previous CPA (not Jack) strung me along and did not follow up on IRS notices, which in turn, ran up more penalties, more interest and got money seized from my bank account, because of gross negligence and incompetence.”
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The Law Office of Jeffrey T. Gillingham
- Trust
- Felt
- Estate
“Jeffery's immense amount of knowledge, paired with his ability to communicate with his client makes him my "go to guy" when it comes to law and business.”
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Andrew P. Dragotto, CPA
- Financial
- Questions
“I have been going to Andrew for over five years now and as a student and a member of the military I always brought with me a complicated series of forms.”
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Chaudhry CPA
- Financial
- Reviews
- Meeting
“I had to pay the IRS for the first time instead of receiving a tax refund, and I had trouble understanding what happened, but he was able work with me and help me file my taxes.”
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D. R. Accounting & Tax Services
- Finance
- Accountant
“I called him few weeks ago, got appointment really quick, very knowledgable, cares so much, I love working with David, I would recommend him to all my friends.”
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Alphatax Tax Service
“I had to file from 3 yrs back, didnt have any of my records, they got lost in my storage with my passport, all our birth certificates, social security cards, and ALL of my entire lifelong memories, heirlooms, all my kids firsts.”
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LNK Tax Group
- Call
“LNK has done exceptional work for our family - both dealing with some tricky current year tax situations as well as helping us clean up some difficult back taxes.”
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Cash in USA
- Job
- Small Business
- Price
“However last year, after providing services at an event that lasted several hours, the host paid the bill, but then a month later, stated they didn't "recognize" the charges.”
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Pik Accounting
“Don't go anywhere else for your taxes!!”
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IRS Solutions
“After straightening out my tax issues quickly and affordably, they do my yearly taxes now!!”
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Hdonovan Consulting
- Consultant
- Knowledge
- Quickbooks
“She implemented a business specific and easy to use solution, allowing me to focus on start up activities and not worry about the financial and accounting system.”
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Smart Services
- Expertise
- Tax Planning
- Business Taxes
“I am a F1 student and my tax situation was complicated as it involved multiple states (Florida and California) and various stocks transactions from multiple brokers.”
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Valencia Tax Group
“Our accounting firms are dedicated to providing individuals and small to medium size businesses with quality CPAs throughout Valencia and surrounding areas with friendly, personalized full-service accounting, tax, business advisement and personal fin...”
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Sunset on Lyons
- Price
“My wife, Ivy and I were so pleased with her services.”
Bookkeeping and Controller Services in Simi Valley, CA Cost Estimates
Minimum cost
$595
Maximum cost
$8864
National Average
$1428
Avg Per Hour Rates
$54
$1071
$2380
Average price range is based on 326 cost profiles
Why these companies made our list
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