200 South Lafayette St., Greenville, MI 48838

Phone: (616) 754-3415
Fax: (616) 754-3518



Surveying Solutions Inc. uses the PZCO team to complete our FAR 31 audits. Their Audit team are very professional and well versed in the FAR 31 requirements. ~ Andrew W. Semenchuk, P.S., President

PZCO has a thorough understanding of the accounting requirements within Title 48, Part 31 of the Code of Regulations, which serves as the basis of accounting for overhead rate schedules. Great Lakes Engineering Group, LLC trusts PZCO to perform our annual overhead rate audit, not only because of their extensive training, experience, and knowledge, but because they have proven their performance with one of our biggest clients, MDOT ~ Amy L. Trahey, P.E. Project Engineer/Owner Great Lakes Engineering Group, LLC

Financial Services

  • Insurance Advisory Services *
  • Retirement & Wealth Accumulation
  • Educational Funding
  • Pension & Profit Sharing Services
  • Tax Sensitive Investment Advice


  • Audit and Review Services
  • Income Tax Preparation
  • Tax Bracket Management
  • Business Financial Analysis & Debt Management Services
  • Estate Planning Services
  • Charitable Advisory Services
  • Valuation Services
  • Litigation Support
  • Representation Before Taxing Authorities
  • Accounting & Bookkeeping
  • Payroll Preparation & Payroll Tax Compliance

Technology Specialists

  • Computer System Evaluation & Recommendation Services
  • Hardware & Software Installation
  • Network Installation & Support Services
  • Computer Repair & Maintenance Services
  • Private or Corporate Training

Check the background of this firm on FINRA's BrokerCheck.

Fee based advisory services offered through SSN Advisory, Inc, a registered investment advisor. Securities offered through Securities Service Network, Inc.,  Member FINRA / SIPC.

Gary Zarkowski is a registered representative offering securities through Securities Service Network, Inc., member FINRA / SIPC.  Branch office located at 200 South Lafayette St., Greenville, MI 48838. Licensed in these following states: MI, CA, FL, GA, IN, VA, WA.

To help the government fight the funding of terrorism and money-laundering activities, federal law requires all financial institutions to obtain, verify, and record information that identifies each person who opens an account.  What this means to you:  When you open an account with Securities Service Network, Inc., we ask for your name, address, date of birth, and other information that will allow us to identify you.  We may also ask to see your driver's license and other identifying documents.  We may share information obtained from you with third parties to verify your identity, in compliance with federal law.

Investment products and services available only to residences of MI, CA, FL, GA, IN, VA, WA. Fee-based advisory services available only to residences of MI, CA, FL, GA, IN, VA, WA.