CPA Firms — Boulder Valley
Ranked by number of local accountants on staff.
BizWest’s list of the Boulder Valley’s largest CPA firms is ranked by the number of accountants in Boulder and Broomfield counties.
Source: BizWest research
| Rank | CompanyCompany | AddressAddress | CPAsCPAs | OfficesOffices | ServicesServices | Person in chargePerson in charge |
|---|---|---|---|---|---|---|
| 1 |
Plante Moran Plante Moran |
8001 Arista Place, Suite 300 8001 Arista Place, Suite 300 Broomfield, CO, 80021 Broomfield, CO, 80021 303-740-9400 303-740-9400 | 26 | 1 | Audit, tax, consulting, state and local tax, transaction services, business technology, accounting solutions, and wealth management services. | Jeremy Wilson, office managing partner |
| 2 |
Brock and Co. CPAs PC Brock and Co. CPAs PC |
4940 Pearl East Circle, Suite 300 4940 Pearl East Circle, Suite 300 Boulder, CO, 80301 Boulder, CO, 80301 303-444-2971 303-444-2971 | 26 | 1 | Tax compliance and planning; audits; business consulting; high-net-worth individuals; family office. | Eric Christopher, shareholder |
| 3 |
Kurtz Fargo LLP Kurtz Fargo LLP |
1470 Walnut St., Suite 301 1470 Walnut St., Suite 301 Boulder, CO, 80302 Boulder, CO, 80302 720-310-2078 720-310-2078 | 23 | 1 | Tax, assurance and advisory services. | Matt Fargo, managing partner |
| 4 |
CLA (CliftonLarsonAllen LLP) CLA (CliftonLarsonAllen LLP) |
2001 16th Street, Suite 1700 2001 16th Street, Suite 1700 Denver,, CO, 80202 Denver,, CO, 80202 303-779-5710 303-779-5710 | 23 | 1 | Wealth advisory, outsourcing, digital, audit, tax and consulting services. | Brad Toone, managing principal |
| 5 |
Eide Bailly LLP Eide Bailly LLP |
One Boulder Plaza, 1801 13th St., Suite 210 One Boulder Plaza, 1801 13th St., Suite 210 Boulder, CO, 80302 Boulder, CO, 80302 303-443-1911 303-443-1911 | 13 | 1 | Audit & assurance, tax, international tax, state & local tax, business outsourcing & strategy, business valuation & analytics, cyber security, financial services, fraud & forensics,human resources, technology consulting, wealth planning, risk advisory, and litigation advisory. | Will Kerns, Colorado market leader |
| 6 |
Tandem CPAs LLC Tandem CPAs LLC |
287 Century Circle, Suite 200 287 Century Circle, Suite 200 Louisville, CO, 80027 Louisville, CO, 80027 303-499-7445 303-499-7445 | 9 | 1 | Tax preparation and planning, business advisory, accounting and bookkeeping services. | Kristin Flewelling, partner |
| 7 |
Boulder CPA Group PC Boulder CPA Group PC |
1790 30th St., Suite 418 1790 30th St., Suite 418 Boulder, CO, 80301-1021 Boulder, CO, 80301-1021 303-449-3060 303-449-3060 | 8 | 1 | Tax, accounting, and business consulting services. | Carol Bailiff, managing shareholder |
| 8 |
Atlas CPAs & Advisors PLLC Atlas CPAs & Advisors PLLC |
916 S. Main St., Suite 202 916 S. Main St., Suite 202 Longmont, CO, 80501 Longmont, CO, 80501 303-678-5392 303-678-5392 | 6 | 1 | Tax planning and preparation, financial statement audits, reviews and compilations and business consulting. | Barbara Clausen, partner |
| 9 |
BDO USA BDO USA |
4999 Pearl East Circle, Suite 300 4999 Pearl East Circle, Suite 300 Boulder, CO, 80301 Boulder, CO, 80301 303-440-0399 303-440-0399 | 5 | 1 | Assurance, tax and advisory services | Stacey Duke, Assurance market managing principal |
| 10 |
Williamson and Co. PC Williamson and Co. PC |
400 S. McCaslin Blvd., Suite 205 400 S. McCaslin Blvd., Suite 205 Louisville, CO, 80027-9701 Louisville, CO, 80027-9701 303-604-0829 303-604-0829 | 4 | 1 | Accounting and tax services. | Alan Williamson, CPA |
| 11 |
JBSK CPAs LLP JBSK CPAs LLP |
1715 Ironhorse Drive, Suite 210 1715 Ironhorse Drive, Suite 210 Longmont, CO, 80501 Longmont, CO, 80501 303-651-3626 303-651-3626 | 4 | 1 | Tax and consulting. | Ramin Karimi, partner |
| 12 |
Richtr Financial Studio Richtr Financial Studio |
1221 Pearl St. 1221 Pearl St. Boulder, CO, 80302 Boulder, CO, 80302 303-449-9222 303-449-9222 | 4 | 1 | Founded in 2004, Richtr Financial Studio helps rapid-growth Innovation companies unlock their potential! Their team of CPA's & business strategists tailor their Accounting, Fractional-CFO, and BizDev Strategy solutions to meet the specific needs of their Life Science, Aerospace & Defense, Deep Tech (e.g., AI, Quantum, & Cleantech), and GovCon (grants/contracts) clients. Primarily serving Pre-Seed to Series C companies with Government Grants/Contracts, and/or Angel or VC/PE funding, they also work with promising early-stage startups in establishing a solid foundation. Located in Boulder, Denver, San Diego, and Silicon Valley. Serving clients throughout the U.S. and internationally. | James Graham, CEO & founder |
| 13 |
Middlemist, Crouch & Co. Middlemist, Crouch & Co. |
2960 Center Green Court 2960 Center Green Court Boulder, CO, 80301 Boulder, CO, 80301 303-449-4025 303-449-4025 | 4 | 1 | Audit and tax services for business, nonprofits and individual clients. | |
| 14 |
Graham & Co. PC, CPAs Graham & Co. PC, CPAs |
1295 S. Broadway, Suite B 1295 S. Broadway, Suite B Boulder, CO, 80305 Boulder, CO, 80305 303-253-7900 303-253-7900 | 4 | 1 | Tax consulting and preparation for businesses, individuals, estates and trusts; specializing in expatriates, foreign nationals, manufacturing, real estate and service businesses. | John Graham, CPA, PFS |
| 15 |
Origin CPA Group Origin CPA Group |
932 Main St. 932 Main St. Louisville, CO, 80027 Louisville, CO, 80027 303-444-2240 303-444-2240 | 4 | 1 | Tax planning, preparation, accounting and family office services for high net worth individuals and their associated entities including estate, trust, gift, and non profits. | Mary Kay Gondrezick, CEO, shareholder |
| 16 |
O'Donnell & Dennis CPAs LLC O'Donnell & Dennis CPAs LLC |
1325 Dry Creek Drive, Suite 202 1325 Dry Creek Drive, Suite 202 Longmont, CO, 80503 Longmont, CO, 80503 303-776-5908 303-776-5908 | 4 | 1 | Tax planning, payroll services, business and financial consulting. | Todd O'Donnell |
| 17 |
Cahill & Associates PC Cahill & Associates PC |
4810 Riverbend Road, Second Floor 4810 Riverbend Road, Second Floor Boulder, CO, 80301 Boulder, CO, 80301 303-440-0400 303-440-0400 | 3 | 1 | Individual, business & trust tax planning and compliance; audit, accounting and bookkeeping services. | Ed Cahill, president |
| 18 |
Brookside Advisors Brookside Advisors |
3223 Arapahoe Ave., #305 3223 Arapahoe Ave., #305 Boulder, CO, 80303 Boulder, CO, 80303 303-440-8866 303-440-8866 | 3 | 1 | Tax planning, tax-return preparation, QuickBooks training and consulting. | Rick Bedell, managing partner |
| 19 |
Scher Group PLLC Scher Group PLLC |
1650 38th St., Suite 201W 1650 38th St., Suite 201W Boulder, CO, 80301 Boulder, CO, 80301 303-443-9001 303-443-9001 | 3 | 1 | Services include small-business accounting packages, payroll services, real estate consulting, and tax planning and preparation. | Alan Scher, MS, CPA/PFS |
| 20 |
Zoraja & Associates PC Zoraja & Associates PC |
3223 Arapahoe Ave., Suite 207 3223 Arapahoe Ave., Suite 207 Boulder, CO, 80303-1092 Boulder, CO, 80303-1092 303-449-8510 303-449-8510 | 3 | 1 | Income tax planning & preparation for individuals, trusts, estates, partnerships & LLCs, C and S-corporations, private foundations; gift-tax returns; IRS and states' representation; entity selection. | Branka Zoraja, president |
| 21 |
Wendell Walker & Associates PC Wendell Walker & Associates PC |
3775 Iris Avenue, Suite 1A 3775 Iris Avenue, Suite 1A Boulder, CO, 80301 Boulder, CO, 80301 303-449-1386 303-449-1386 | 3 | 1 | Income tax preparation and planning high-income individuals; partnership, corporation and fiduciary tax preparation and planning. Estate planning. | Wendell Walker, CPA,AEP, CVA, owner |
| 22 |
Henry, Waters & Associates Inc. Henry, Waters & Associates Inc. |
4740 Table Mesa Drive 4740 Table Mesa Drive Boulder, CO, 80305 Boulder, CO, 80305 303-494-4050 303-494-4050 | 2 | 1 | Bookkeeping, accounting, payroll and tax advisory services. | Steven Henry, president |
| 23 |
Perry, Roane & Henley PC Perry, Roane & Henley PC |
149 Second Ave. 149 Second Ave. Niwot, CO, 80544 Niwot, CO, 80544 303-652-8282 303-652-8282 | 2 | 1 | Real estate and rental, restaurants, oil & gas, software development, service industries, business consulting & services, international tax guidance. | Dayna Roane, CPA |
| 24 |
KCO Inc. KCO Inc. |
245 Century Circle, Suite 206 245 Century Circle, Suite 206 Louisville, CO, 80027 Louisville, CO, 80027 303-449-3830 303-449-3830 | 2 | 1 | Tax, audit, and small business advisory. Manufacturing, real estate, construction and non-profits. | Mark Kightlinger, CPA |
| 25 |
Mosaic Tax Group LLC Mosaic Tax Group LLC |
2590 Trailridge Drive E., Suite 201 2590 Trailridge Drive E., Suite 201 Lafayette, CO, 80026 Lafayette, CO, 80026 303-444-4327 303-444-4327 | 2 | 1 | Tax, consulting and bookkeeping. | Frank Latino, president |
Ranked by number of local accountants on staff.
BizWest’s list of the Boulder Valley’s largest CPA firms is ranked by the number of accountants in Boulder and Broomfield counties.
Source: BizWest research
| Rank | CompanyCompany | AddressAddress | CPAsCPAs | OfficesOffices | ServicesServices | Person in chargePerson in charge |
|---|---|---|---|---|---|---|
| 1 |
Plante Moran Plante Moran |
8001 Arista Place, Suite 300 8001 Arista Place, Suite 300 Broomfield, CO, 80021 Broomfield, CO, 80021 303-740-9400 303-740-9400 | 26 | 1 | Audit, tax, consulting, state and local tax, transaction services, business technology, accounting solutions, and wealth management services. | Jeremy Wilson, office managing partner |
| 2 |
Brock and Co. CPAs PC Brock and Co. CPAs PC |
4940 Pearl East Circle, Suite 300 4940 Pearl East Circle, Suite 300 Boulder, CO, 80301 Boulder, CO, 80301 303-444-2971 303-444-2971 | 26 | 1 | Tax compliance and planning; audits; business consulting; high-net-worth individuals; family office. | Eric Christopher, shareholder |
| 3 |
Kurtz Fargo LLP Kurtz Fargo LLP |
1470 Walnut St., Suite 301 1470 Walnut St., Suite 301 Boulder, CO, 80302 Boulder, CO, 80302 720-310-2078 720-310-2078 | 23 | 1 | Tax, assurance and advisory services. | Matt Fargo, managing partner |
| 4 |
CLA (CliftonLarsonAllen LLP) CLA (CliftonLarsonAllen LLP) |
2001 16th Street, Suite 1700 2001 16th Street, Suite 1700 Denver,, CO, 80202 Denver,, CO, 80202 303-779-5710 303-779-5710 | 23 | 1 | Wealth advisory, outsourcing, digital, audit, tax and consulting services. | Brad Toone, managing principal |
| 5 |
Eide Bailly LLP Eide Bailly LLP |
One Boulder Plaza, 1801 13th St., Suite 210 One Boulder Plaza, 1801 13th St., Suite 210 Boulder, CO, 80302 Boulder, CO, 80302 303-443-1911 303-443-1911 | 13 | 1 | Audit & assurance, tax, international tax, state & local tax, business outsourcing & strategy, business valuation & analytics, cyber security, financial services, fraud & forensics,human resources, technology consulting, wealth planning, risk advisory, and litigation advisory. | Will Kerns, Colorado market leader |
| 6 |
Tandem CPAs LLC Tandem CPAs LLC |
287 Century Circle, Suite 200 287 Century Circle, Suite 200 Louisville, CO, 80027 Louisville, CO, 80027 303-499-7445 303-499-7445 | 9 | 1 | Tax preparation and planning, business advisory, accounting and bookkeeping services. | Kristin Flewelling, partner |
| 7 |
Boulder CPA Group PC Boulder CPA Group PC |
1790 30th St., Suite 418 1790 30th St., Suite 418 Boulder, CO, 80301-1021 Boulder, CO, 80301-1021 303-449-3060 303-449-3060 | 8 | 1 | Tax, accounting, and business consulting services. | Carol Bailiff, managing shareholder |
| 8 |
Atlas CPAs & Advisors PLLC Atlas CPAs & Advisors PLLC |
916 S. Main St., Suite 202 916 S. Main St., Suite 202 Longmont, CO, 80501 Longmont, CO, 80501 303-678-5392 303-678-5392 | 6 | 1 | Tax planning and preparation, financial statement audits, reviews and compilations and business consulting. | Barbara Clausen, partner |
| 9 |
BDO USA BDO USA |
4999 Pearl East Circle, Suite 300 4999 Pearl East Circle, Suite 300 Boulder, CO, 80301 Boulder, CO, 80301 303-440-0399 303-440-0399 | 5 | 1 | Assurance, tax and advisory services | Stacey Duke, Assurance market managing principal |
| 10 |
Williamson and Co. PC Williamson and Co. PC |
400 S. McCaslin Blvd., Suite 205 400 S. McCaslin Blvd., Suite 205 Louisville, CO, 80027-9701 Louisville, CO, 80027-9701 303-604-0829 303-604-0829 | 4 | 1 | Accounting and tax services. | Alan Williamson, CPA |
| 11 |
JBSK CPAs LLP JBSK CPAs LLP |
1715 Ironhorse Drive, Suite 210 1715 Ironhorse Drive, Suite 210 Longmont, CO, 80501 Longmont, CO, 80501 303-651-3626 303-651-3626 | 4 | 1 | Tax and consulting. | Ramin Karimi, partner |
| 12 |
Richtr Financial Studio Richtr Financial Studio |
1221 Pearl St. 1221 Pearl St. Boulder, CO, 80302 Boulder, CO, 80302 303-449-9222 303-449-9222 | 4 | 1 | Founded in 2004, Richtr Financial Studio helps rapid-growth Innovation companies unlock their potential! Their team of CPA's & business strategists tailor their Accounting, Fractional-CFO, and BizDev Strategy solutions to meet the specific needs of their Life Science, Aerospace & Defense, Deep Tech (e.g., AI, Quantum, & Cleantech), and GovCon (grants/contracts) clients. Primarily serving Pre-Seed to Series C companies with Government Grants/Contracts, and/or Angel or VC/PE funding, they also work with promising early-stage startups in establishing a solid foundation. Located in Boulder, Denver, San Diego, and Silicon Valley. Serving clients throughout the U.S. and internationally. | James Graham, CEO & founder |
| 13 |
Middlemist, Crouch & Co. Middlemist, Crouch & Co. |
2960 Center Green Court 2960 Center Green Court Boulder, CO, 80301 Boulder, CO, 80301 303-449-4025 303-449-4025 | 4 | 1 | Audit and tax services for business, nonprofits and individual clients. | |
| 14 |
Graham & Co. PC, CPAs Graham & Co. PC, CPAs |
1295 S. Broadway, Suite B 1295 S. Broadway, Suite B Boulder, CO, 80305 Boulder, CO, 80305 303-253-7900 303-253-7900 | 4 | 1 | Tax consulting and preparation for businesses, individuals, estates and trusts; specializing in expatriates, foreign nationals, manufacturing, real estate and service businesses. | John Graham, CPA, PFS |
| 15 |
Origin CPA Group Origin CPA Group |
932 Main St. 932 Main St. Louisville, CO, 80027 Louisville, CO, 80027 303-444-2240 303-444-2240 | 4 | 1 | Tax planning, preparation, accounting and family office services for high net worth individuals and their associated entities including estate, trust, gift, and non profits. | Mary Kay Gondrezick, CEO, shareholder |
| 16 |
O'Donnell & Dennis CPAs LLC O'Donnell & Dennis CPAs LLC |
1325 Dry Creek Drive, Suite 202 1325 Dry Creek Drive, Suite 202 Longmont, CO, 80503 Longmont, CO, 80503 303-776-5908 303-776-5908 | 4 | 1 | Tax planning, payroll services, business and financial consulting. | Todd O'Donnell |
| 17 |
Cahill & Associates PC Cahill & Associates PC |
4810 Riverbend Road, Second Floor 4810 Riverbend Road, Second Floor Boulder, CO, 80301 Boulder, CO, 80301 303-440-0400 303-440-0400 | 3 | 1 | Individual, business & trust tax planning and compliance; audit, accounting and bookkeeping services. | Ed Cahill, president |
| 18 |
Brookside Advisors Brookside Advisors |
3223 Arapahoe Ave., #305 3223 Arapahoe Ave., #305 Boulder, CO, 80303 Boulder, CO, 80303 303-440-8866 303-440-8866 | 3 | 1 | Tax planning, tax-return preparation, QuickBooks training and consulting. | Rick Bedell, managing partner |
| 19 |
Scher Group PLLC Scher Group PLLC |
1650 38th St., Suite 201W 1650 38th St., Suite 201W Boulder, CO, 80301 Boulder, CO, 80301 303-443-9001 303-443-9001 | 3 | 1 | Services include small-business accounting packages, payroll services, real estate consulting, and tax planning and preparation. | Alan Scher, MS, CPA/PFS |
| 20 |
Zoraja & Associates PC Zoraja & Associates PC |
3223 Arapahoe Ave., Suite 207 3223 Arapahoe Ave., Suite 207 Boulder, CO, 80303-1092 Boulder, CO, 80303-1092 303-449-8510 303-449-8510 | 3 | 1 | Income tax planning & preparation for individuals, trusts, estates, partnerships & LLCs, C and S-corporations, private foundations; gift-tax returns; IRS and states' representation; entity selection. | Branka Zoraja, president |
| 21 |
Wendell Walker & Associates PC Wendell Walker & Associates PC |
3775 Iris Avenue, Suite 1A 3775 Iris Avenue, Suite 1A Boulder, CO, 80301 Boulder, CO, 80301 303-449-1386 303-449-1386 | 3 | 1 | Income tax preparation and planning high-income individuals; partnership, corporation and fiduciary tax preparation and planning. Estate planning. | Wendell Walker, CPA,AEP, CVA, owner |
| 22 |
Henry, Waters & Associates Inc. Henry, Waters & Associates Inc. |
4740 Table Mesa Drive 4740 Table Mesa Drive Boulder, CO, 80305 Boulder, CO, 80305 303-494-4050 303-494-4050 | 2 | 1 | Bookkeeping, accounting, payroll and tax advisory services. | Steven Henry, president |
| 23 |
Perry, Roane & Henley PC Perry, Roane & Henley PC |
149 Second Ave. 149 Second Ave. Niwot, CO, 80544 Niwot, CO, 80544 303-652-8282 303-652-8282 | 2 | 1 | Real estate and rental, restaurants, oil & gas, software development, service industries, business consulting & services, international tax guidance. | Dayna Roane, CPA |
| 24 |
KCO Inc. KCO Inc. |
245 Century Circle, Suite 206 245 Century Circle, Suite 206 Louisville, CO, 80027 Louisville, CO, 80027 303-449-3830 303-449-3830 | 2 | 1 | Tax, audit, and small business advisory. Manufacturing, real estate, construction and non-profits. | Mark Kightlinger, CPA |
| 25 |
Mosaic Tax Group LLC Mosaic Tax Group LLC |
2590 Trailridge Drive E., Suite 201 2590 Trailridge Drive E., Suite 201 Lafayette, CO, 80026 Lafayette, CO, 80026 303-444-4327 303-444-4327 | 2 | 1 | Tax, consulting and bookkeeping. | Frank Latino, president |
