Full-service accounting firm - Scottsdale, AZ


For years, Mark M. Harnden CPA, PC has been providing quality, personalized financial guidance to local individuals and businesses. Our expertise ranges from basic tax management and accounting services to more in-depth services such as audits, financial statements, and financial planning.

Our Mission

Our mission is to help clients maintain financial viability in the present while taking a proactive approach to achieve future goals. This requires open communication to reach an understanding of our clients' needs through research and sound analysis. Mark M. Harnden CPA, PC is dedicated to meeting these goals with high standards of excellence and professionalism. We have been a staple of the area's business community for years, and pride ourselves on the level of esteem we have earned.

Mark M. Harnden CPA, PC provides a wide range of services to individuals and businesses in a variety of industries. At Mark M. Harnden CPA, PC, we strive to meet each client's specific needs in planning for the future and achieving their goals in an ever-changing financial and regulatory environment.

Our professional services include:

  • Accounting Services
  • IRS Representation
  • Bookkeeping/Write-up
  • Estate and Trust Planning and Tax Preparation
  • Reviews and Compilation
  • Cash Flow and Budgeting Analysis
  • Accounting Software Selection, Implementation, and Support
  • Debt and Finance Advising
  • Payroll Services
  • Management Advisory Services
  • Financial Projections and Forecasts
  • Financial Statements
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Scottsdale, AZ
  • 7689 East Paradise Lane (Suite 7)
    Scottsdale, AZ 85260
    United States


? These focus breakdowns are estimates provided by the Clutch team. Service line and focus breakdowns can change at any time and are subject to the company’s discretion once they claim ownership over their Clutch profile.
Service lines
  • Tax Preparation
  • Payroll Processing
  • Bookkeeping


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Corporate Accounting for Tech Consultancy

"Their customer service is just excellent; they’re very mindful of their services."

Willing to refer: 
The Project
Sept. 2018 - Ongoing
Project summary: 

Mark M. Harnden CPA, PC provides corporate and personal tax filing services for a consulting group. Their team also provides payroll services and complete reports.

The Reviewer
11-50 employees
Seattle, Washington
Japhet Berlin
Principal Consultant, Fifteen Management Consulting Group
The Review
Feedback summary: 

The services from Mark M. Harnden CPA, PC have given the client great peace of mind. Their diligence in educating their team is outstanding and critical. Bringing great expertise and strong communication, the partnership has flowed smoothly for over a decade.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.


Introduce your business and what you do there.

I’m the president of Fifteen Management Consultant Group, a technology consulting group.


What challenge were you trying to address with Mark M. Harnden CPA, PC?

When I started the company, I knew I needed a professional to handle the taxes because of the company’s complexity. 


What was the scope of their involvement?

They do everything from my corporate taxes to my personal taxes. They’ve also provided me with payroll services for my team. 

What is the team composition?

I work directly with Doug (Tax Specialist). 

How did you come to work with Mark M. Harnden CPA, PC?

They came highly recommended to me. 

How much have you invested with them?

We spend around $2,500 per year, but it depends on the services. I pay a monthly fee but pay a separate cost for certain services. 

What is the status of this engagement?

We’ve been working together since roughly September 2007 and our engagement is ongoing. 


What evidence can you share that demonstrates the impact of the engagement? 

First of all, the peace of mind their service provides is great. I wanted someone who knew the ins and outs of the new tax codes, and they continuously show that. 

How did Mark M. Harnden CPA, PC perform from a project management standpoint?

We communicate fluidly; we live in the age of technology so the distance between our teams doesn’t impact us. We use mail, email and video conferences. I know they’re always available for me. 

They also give me concise reports and a beautifully bound read-out of all of my taxes after they’re filed. Their presentation is fantastic and allows me to file everything correctly. 

What did you find most impressive about them?

They continually are educating themselves on tax codes and earning credits. Their customer service is just excellent; they’re very mindful of their services. I’ve even recommended family to them. They’re top-notch. 

Are there any areas they could improve?

It’d be great if they’d enable their clients to pay invoices online. I still need to use checks, and I’d rather be able to take care of it online.  

Overall Score It’s been great and they’re fantastic.
  • 5.0 Scheduling
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer
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