Accounting Firm

Diamond Financial Corporation

Licensed CPA practice handling tax returns, accounting and financial planning for individuals and businesses

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TrustList summary

Diamond Financial Corporation is a certified public accounting practice led by Joe Diamond, who holds CPA, CFP and Enrolled Agent credentials and a master's in taxation. Operating since 1990, the firm says it has served clients in all 50 states and now works under a Missouri licence.

What Diamond Financial Corporation offers

Tax preparation: returns for individuals, businesses, corporations, estates and trusts.
Accounting and bookkeeping: day-to-day accounts, payroll and sales tax work for businesses.
Financial planning: individual and family planning from Certified Financial Planner professionals.
IRS representation: audit resolution handled by an IRS Enrolled Agent.
Restaurant accounting: bookkeeping, payroll and sales taxes for restaurants, working with their POS systems.

Customers and markets

Clients range from individuals and families to owner-run businesses and larger companies, with a particular line for restaurants.

Key facts

Founded: 1990
Licensing: Missouri licensed CPAs
Appointments: telephone meetings booked online, with documents shared through a secure link

Summary written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

Diamond Financial Corporation is ranked on 2 TrustList rankings: #2 on 1 and #20 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Diamond Financial Corporation has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Accounting firm · 2 rankings

#2of 8
Pos
It is the only one of the 8 here listing attestation and directions.
Its profile: “- Restaurant accounting: bookkeeping, payroll and sales taxes for restaurants, working with their POS systems.”
Of the 8 here, 5 also cover accounting and 4 also cover tax.
Behind Abundance in Business LLC, ahead of Gofrugal.
#20of 26
Illinois
It is the only one of the 26 here listing POS and one of 28 here listing accounting.
Of the 26 here, 7 also cover medical and 6 also cover insurance; 4 also work in Indiana and 3 also work in Michigan.
Behind Lenning & Co., Inc., ahead of Holland & Company, CPAs.