Quick Comparison
| Firm | Credentials | Focus |
|---|---|---|
| <a href="https://www.bottomline-accounting.com/">Bottom-Line Bookkeeping & Accounting</a> | Founded 2003 by Kenneth Schupp (22 plus years); Canisius College accounting graduate with 20 plus years of accounting, advisory, and tax experience; QuickBooks setup and ongoing support. | Outsourced bookkeeping, payroll, outsourced controller and CFO services, tax planning and preparation, and QuickBooks consulting for Western New York small businesses. |
| <a href="https://briensbusinessumbrella.com/">Brien's Business Umbrella</a> | Founded 2016 by Timothy M. Brien, MBA (10 years); QuickBooks Online Certified ProAdvisor listed in the Intuit Find-a-ProAdvisor directory; Individual Tax Return Preparer. | Virtual accounting and bookkeeping, QuickBooks Online training and conversions, payroll, tax planning and preparation, and small business advisory packages. |
| <a href="https://www.dornerlandbookkeeping.com/">DornerLand Bookkeeping, LLC</a> | Founded 2020 by Jackie Dorner (5 plus years); QuickBooks Online Certified ProAdvisor and QuickBooks Online Payroll ProAdvisor; family-owned LLC with a decade of industry experience. | Bookkeeping, accounts payable and receivable, payroll entry, financial reporting, and QuickBooks, Xero, and Excel training for startups, sole proprietors, and established small businesses. |
1. Bottom-Line Bookkeeping & Accounting
- Address: 510 Seabrook Drive, Suite 1920, Williamsville, NY 14221
- Phone: (716) 626-4919
- Founder / Owner: Kenneth Schupp, Owner
- Operating Since: 2003 (22 plus years)
- Credentials: Canisius College accounting graduate; 20 plus years of accounting, business advisory, and tax experience; QuickBooks setup and ongoing support; BBB business profile dated to a 6/1/2003 business start.
- Service area: Williamsville, Amherst, Buffalo, Erie County, and the broader Western New York region.
- Industries served: Small and mid-sized businesses, corporations, and individual taxpayers across Western New York, including clients that need outsourced controller and CFO support.
- Website: bottomline-accounting.com
Seabrook Drive Office and Owner Profile
Bottom-Line Bookkeeping & Accounting works from Suite 1920 at 510 Seabrook Drive in zip 14221, the Williamsville corridor northeast of Buffalo near the Maple Road and Transit Road junction. Kenneth Schupp is named as owner on the company About page, the shop LinkedIn profile under Bottom-Line Bookkeeping and Accounting, the BBB business profile, the TaxBuzz preparer profile, and the Yellow Pages listing. The (716) 626-4919 phone and the Seabrook Drive address match across the practice site, BBB, ZoomInfo, Manta, and the Erie County Clerk “Thank A Vet” registry.
Two-Decade Independent Window
The Better Business Bureau profile shows Bottom-Line Bookkeeping & Accounting with a 6/1/2003 business start date, and the firm has stayed under single-owner control across that window. That 22 plus year window crosses multiple QuickBooks Desktop version cycles, the migration to QuickBooks Online, the 2008 small business credit shock, and the 2020 remote-work shift. Long single-owner windows reduce the staff churn risk that comes with rolled-up national bookkeeping platforms and matter to Western New York founders who want continuity on the prior-year file.
Outsourced Controller and CFO Stack
Bottom-Line stacks bookkeeping with outsourced controller and CFO services, payroll, and tax planning, which suits Williamsville and Amherst owners who want one back office contact for monthly close, payroll tax filings, quarterly forecasting, and year-end tax preparation. The firm publishes services that cover monthly closings, cash balance tracking, payroll tax filings, workers’ compensation and unemployment reporting, budgeting, financial analysis, and QuickBooks accounting software setup with ongoing support, which is a wider service bundle than most independent Western New York bookkeeping shops publish.
Canisius-Trained, Western New York Focus
Kenneth Schupp graduated in accounting from Canisius College in Buffalo and built his practice for the Western New York small business market rather than chasing national virtual clients. That regional focus matters because New York State sales tax filings under the ST-100 and ST-810 schedules, MCTMT reporting, New York State Paid Family Leave, and New York State Department of Labor unemployment registration each carry filing cadences that a generalist bookkeeper outside the state may handle clumsily. Bottom-Line’s Williamsville base keeps the company close to its long-standing Erie County client roster.
2. Brien’s Business Umbrella
- Address: 1 Seneca Street, Suite 29-M3, Buffalo, NY 14203
- Phone: (716) 727-8844
- Founder / Owner: Timothy M. Brien, Owner
- Operating Since: 2016 (10 years)
- Credentials: MBA; QuickBooks Online Certified ProAdvisor listed in the Intuit Find-a-ProAdvisor directory under Timothy Brien; Individual Tax Return Preparer; BBB business profile under Brien’s Business Umbrella; 20 plus years of accounting and controller experience.
- Service area: Buffalo, Erie County, and Western New York with virtual engagements for clients across the United States.
- Industries served: Small businesses, sole proprietors, professional services, and clients with manufacturing and unionized payroll backgrounds.
- Website: briensbusinessumbrella.com
Seneca One Tower Office and Founder Background
Brien’s Business Umbrella works from Suite 29-M3 at 1 Seneca Street in zip 14203, the Seneca One tower in downtown Buffalo near the Buffalo River and the Cobblestone District. Timothy M. Brien is named as owner on the shop About page, the LinkedIn profile under Timothy Brien, the BBB business profile, the Yelp listing, the Manta company profile, the Alignable profile, and the Intuit Find-a-ProAdvisor directory entry under Timothy Brien. The (716) 727-8844 phone and the 1 Seneca Street address match across the practice site, BBB, Yelp, and the Hernando Chamber member listing.
MBA Plus QuickBooks ProAdvisor Credential Stack
Timothy holds an MBA and is a Certified QuickBooks Online ProAdvisor and Individual Tax Return Preparer, which is a tighter credential stack than most Buffalo independent bookkeepers publish. Before launching Brien’s Business Umbrella in 2016, Timothy worked as a full-time controller at a unionized manufacturing plant and prepared individual tax returns, which gave him 10 plus years of in-house controller experience plus tax-prep depth. That background suits Buffalo founders who want a bookkeeper familiar with union payroll, manufacturing job costing, and small business tax preparation under the same engagement letter.
Virtual Delivery With a Downtown Buffalo Anchor
Brien’s Business Umbrella delivers a fully virtual back office model out of the Seneca One tower, with cloud-based QuickBooks Online files, recurring close calendars, and tiered service packages. The firm publishes an explicit service menu including QuickBooks Online setups and conversions from QuickBooks Desktop, QuickBooks Online training, QuickBooks Online reviews, QuickBooks cleanup, payroll, and tax planning and preparation, with a Platinum tier that bundles full payroll service. That tiered model gives Buffalo owners a defined entry point rather than a custom quote on every engagement.
Decade in the Buffalo Small Business Market
Timothy founded the firm in 2016, which puts the practice past the 10-year mark in the Buffalo and Western New York market. The window crosses the QuickBooks Online migration cycle, the 2020 remote-work shift, and the more recent Buffalo small business growth wave through the Larkinville, Cobblestone, and Elmwood Village corridors. The firm has stayed under single-owner control across that window, with no rollup or franchise affiliation, which is the structure this directory looks for over venture-funded national bookkeeping platforms.
3. DornerLand Bookkeeping, LLC
- Address: 144 Meadow Lea Drive, Amherst, NY 14226
- Phone: (716) 548-4364
- Founder / Owner: Jackie Dorner, Founder and Owner
- Operating Since: 2020 (5 plus years)
- Credentials: QuickBooks Online Certified ProAdvisor and QuickBooks Online Payroll ProAdvisor listed in the Intuit Find-a-ProAdvisor directory under DornerLand Bookkeeping; family-owned LLC; BBB business profile dated to a 12/7/2020 business start; over a decade of bookkeeping industry experience.
- Service area: Amherst, Buffalo, Erie County, and the Western New York market with nationwide virtual engagements.
- Industries served: Startups, sole proprietors, and established small to mid-sized businesses across general industries that run on QuickBooks Online or Xero.
- Website: dornerlandbookkeeping.com
Meadow Lea Drive Practice Profile
DornerLand Bookkeeping works from 144 Meadow Lea Drive in zip 14226, the Amherst residential corridor north of Buffalo near the University at Buffalo South Campus and the Eggertsville neighborhood. Jackie Dorner is named as owner on the company About page, the LinkedIn profile under Jackie Dorner, the BBB business profile under DornerLand Bookkeeping, LLC, the Yelp listing, the Alignable profile, the WNY Thrive listing, and the Intuit Find-a-ProAdvisor directory entry under DornerLand Bookkeeping. The (716) 548-4364 phone and the Meadow Lea Drive address match across the shop site, BBB, Nextdoor, and the Yahoo Local listing.
Dual ProAdvisor Credentials
Jackie holds both the QuickBooks Online Certified ProAdvisor designation and the QuickBooks Online Payroll ProAdvisor designation, which is a stronger Intuit credential pair than most independent Buffalo bookkeepers publish. The dual credentials matter because Western New York payroll work brings in New York State withholding, MCTMT, New York State Paid Family Leave, and New York State Department of Labor reporting, and the Payroll ProAdvisor track signals direct training on the QuickBooks Online Payroll module rather than on the core ledger module alone. The firm pairs that with QuickBooks, Xero, and Excel training programs published on the practice site.
Family-Owned Founder-Led Structure
The Better Business Bureau profile dates the business start to 12/7/2020, the LLC incorporation to the same date, and shows DornerLand Bookkeeping as a family-owned entity under Jackie’s name. The firm has stayed under single-owner control across its window in the Buffalo and Amherst market, with no franchise or rollup affiliation. Jackie’s published bio shows over a decade of bookkeeping industry experience that predates the LLC, which gives DornerLand a deeper practitioner background than the 2020 LLC date alone suggests.
Training Plus Outsourced Bookkeeping Mix
DornerLand stacks day-to-day outsourced bookkeeping with QuickBooks Online, Xero, and Excel training programs aimed at owners who want their internal staff to take over routine entry once the chart of accounts is stable. The published service line covers financial data entry, bank and credit card reconciliation, accounts payable and receivable, payroll entry, financial report preparation, and rescue bookkeeping for clients with cleanup needs. That mix suits Amherst and Buffalo owners who want either a fully outsourced back office or a hybrid where DornerLand handles the close while client staff handle invoice entry.
Reference Notes
Bottom-Line Bookkeeping & Accounting details were cross-checked across the firm’s own site at bottomline-accounting.com, including the About page that names Kenneth Schupp as owner and lists his Canisius College accounting background, plus the Better Business Bureau business profile under Bottom-Line Bookkeeping & Accounting that records the 6/1/2003 business start, the LinkedIn profile for Ken Schupp under Bottom-Line Bookkeeping & Accounting, the company LinkedIn page, the TaxBuzz preparer profile for Kenneth Schupp, the Yelp business listing, the Yellow Pages listing for the Williamsville office, the Manta company profile, the AllBiz listing, the ZoomInfo company profile, the Erie County Clerk “Thank A Vet” registry entry, and the company Facebook page under Bottom-Line Bookkeeping & Accounting Buffalo NY. The 2003 founding year was confirmed against the BBB business start date and reinforced by the shop About page reference to a 20 plus year practitioner window.
Brien’s Business Umbrella details were cross-checked across the practice’s own site at briensbusinessumbrella.com, including the Our Story page that names Timothy Brien as owner and dates the 2016 launch, the Our Services page that lists QuickBooks Online setups, conversions, training, reviews, and cleanup, plus the Better Business Bureau business profile under Brien’s Business Umbrella, the LinkedIn profile for Timothy Brien, the Intuit Find-a-ProAdvisor directory entry for Timothy Brien in Buffalo, the Yelp business listing for the 1 Seneca Street office, the Manta company profile, the Alignable profile, the iBegin directory listing, the RocketReach contact profile, the Hernando Chamber member directory, the Trusty Taxer review profile, and the firm Facebook page. The 2016 founding year was confirmed against the company Our Story page and reinforced by Timothy’s LinkedIn profile and the BBB business profile.
DornerLand Bookkeeping details were cross-checked across the shop’s own site at dornerlandbookkeeping.com, including the About Us page that names Jackie Dorner as founder, the Buffalo and Amherst service pages that list the (716) 548-4364 phone, the Bookkeeping FAQs page, and the QuickBooks Training page, plus the Better Business Bureau business profile under DornerLand Bookkeeping, LLC that records the 12/7/2020 business start, the LinkedIn profile for Jackie Dorner under DornerLand Bookkeeping, LLC, the Intuit Find-a-ProAdvisor directory entry for Jackie Dorner in Amherst with both the QuickBooks Online ProAdvisor and Payroll ProAdvisor designations, the Yelp business listing, the Alignable profile, the Nextdoor business page, the Yahoo Local listing, the WNY Thrive directory listing, and the practice Facebook page. The 2020 founding year was confirmed against the BBB business start date and reinforced by the firm About page. All three firms appear as independent, founder-led practices and not as franchised or rolled-up brands such as Bench, Pilot, QuickBooks Live, BELAY, Bookkeeper360, Bookminders, Supporting Strategies, Bookkeeper.com, or 1-800Accountant.
Selection Methodology
This list applies four filters to the Buffalo and Erie County market. First, the company has to be independent, family owned, or founder led rather than part of a national rollup or franchise brand. Second, the shop must show active QuickBooks ProAdvisor or QuickBooks-certified credentials, with that focus visible on its own site or on a third-party directory such as the Intuit Find-a-ProAdvisor listings. Third, the practice has to have been in business for at least five years, with priority given to firms past the ten-year mark. Fourth, the firm has to position itself as a bookkeeping practice rather than a pure CPA tax-prep shop, even if the founder happens to hold a CPA license or other tax credential. Public address and phone data also had to match across at least two independent sources, including the company’s own site plus a Better Business Bureau record, a chamber directory listing, a LinkedIn profile, the Intuit Find-a-ProAdvisor directory, or another third-party listing. National rollup brands such as Bench, Pilot, QuickBooks Live, BELAY, Bookkeeper360, Bookminders, Supporting Strategies, Bookkeeper.com, and 1-800Accountant were excluded by design, since this directory targets locally owned shops in the Buffalo, Erie County, and Western New York market. The three New York City firms profiled in the companion New York directory were also excluded so this Buffalo list reflects only Western New York based practices.
Frequently Asked Questions
Do these firms serve clients outside Buffalo proper?
Yes. Bottom-Line Bookkeeping & Accounting works from Suite 1920 at 510 Seabrook Drive in Williamsville and supports clients across Erie County and the broader Western New York region under a mix of in-person and cloud-based engagements. Brien’s Business Umbrella works from Suite 29-M3 at 1 Seneca Street in downtown Buffalo and pairs Buffalo and Erie County engagements with virtual bookkeeping for clients across the United States under a fully cloud-based delivery model. DornerLand Bookkeeping works from 144 Meadow Lea Drive in Amherst and runs Buffalo and Erie County engagements alongside nationwide virtual appointments through cloud-based QuickBooks Online and Xero files, which suits owners outside the immediate Western New York core.
Are these firms CPA practices or bookkeeping practices?
All three position themselves as bookkeeping and QuickBooks practices rather than as CPA audit shops. Bottom-Line Bookkeeping & Accounting is run by founder Kenneth Schupp and stacks outsourced bookkeeping with payroll, outsourced controller and CFO services, tax planning and preparation, and QuickBooks accounting software setup. Brien’s Business Umbrella is owned by Timothy Brien, who holds an MBA and the QuickBooks Online ProAdvisor credential, and the shop positions itself as a virtual accounting and bookkeeping practice with QuickBooks Online as the preferred ledger. DornerLand Bookkeeping is owned by Jackie Dorner, a QuickBooks Online and Payroll ProAdvisor, and the practice runs as a bookkeeping plus training practice across QuickBooks Online, Xero, and Excel. Owners who need formal CPA audit or attest work would still need to retain a separate licensed firm.
Do Buffalo bookkeeping firms typically offer remote service?
Yes. Brien’s Business Umbrella runs a fully virtual delivery model out of the Seneca One tower and supports clients across the United States with cloud-based QuickBooks Online files, with the in-person Buffalo office available for clients who prefer face-to-face meetings. DornerLand Bookkeeping pairs in-person Amherst meetings with nationwide virtual appointments through cloud-based QuickBooks Online and Xero files, which suits owners outside the immediate Buffalo and Erie County core. Bottom-Line Bookkeeping & Accounting supports remote engagements alongside in-person Williamsville meetings and pairs QuickBooks setup with payroll and outsourced CFO support, which suits Western New York owners who want either a fully cloud-based engagement or a hybrid of in-person and remote work.
How long have these firms been operating?
Bottom-Line Bookkeeping & Accounting has been in business since 2003 (22 plus years) under founder Kenneth Schupp, with the 6/1/2003 business start dated by the Better Business Bureau profile. Brien’s Business Umbrella has been in business since 2016 (10 years) under founder Timothy M. Brien, MBA. DornerLand Bookkeeping has been in business since 2020 (5 plus years) under founder Jackie Dorner, with the 12/7/2020 LLC start dated by the Better Business Bureau profile. Each firm sits past the five-year minimum tenure threshold this directory applies, and each has stayed independent and founder-led across its full window.
Editorial Note
This post was prepared on 2026-05-11 using publicly available web sources, including each firm’s own website, third-party business directories such as the Better Business Bureau, the Intuit Find-a-ProAdvisor directory, Yelp, Manta, ZoomInfo, Alignable, Nextdoor, WNY Thrive, the Hernando Chamber member directory, AllBiz, TaxBuzz, the Erie County Clerk “Thank A Vet” registry, and Yellow Pages, plus LinkedIn business profiles and Facebook business pages. Address, phone, ownership, and tenure details reflect those sources at the time of writing. Readers should confirm current details directly with each firm before contracting, since office locations, phone numbers, and ownership can change after publication.