Company lists · Data refreshed September 2026
Top 25 Tax appeal appraisers worldwide
RevenueBase identified 1,459 tax appeal appraisers worldwide as of September 2026 and tracks 10,977 professional contacts across them, including 4,062 with verified work emails. The United States is the largest market and Chicago the largest hub.
This list covers tax appeal appraisers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026. Country and city lists for tax appeal appraisers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest tax appeal appraisers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 790 contacts → | ||||
Indirect evidence “For nearly 100 years, Duff & Phelps helped clients make confident decisions in the areas of valuation, real estate, taxation and transfer pricing, disputes, M&A advisory and other…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 699 contacts → | ||||
Indirect evidence “BBG is a nationally recognized valuation and assessment firm with a reputation for personal attention, deep industry experience, and a proactive approach to meet client deadlines.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 392 contacts → | ||||
Strong evidence “Founded in 2008, Ola Tax has extensive experience specifically appealing property taxes.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 249 contacts → | ||||
Indirect evidence “Acumentis is Australia’s only professional property and business valuation and advisory services firm listed on the Australian Stock Exchange.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 238 contacts → | ||||
Partial evidence “The Harris Central Appraisal District appraises taxable property for the county, cities, school districts, and more than 300 special districts such as MUDs that levy property…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 235 contacts → | ||||
Indirect evidence “In business since 1974, we have the resources and unparalleled market expertise to provide you with all of your real estate valuation and consulting needs.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 224 contacts → | ||||
Partial evidence “In operation since 1978, KE Andrews is one of the largest state and local tax firms in the country, managing over $500 billion in assets.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 150 contacts → | ||||
Indirect evidence “EUROVAL, marca y denominación comercial de Eurovaloraciones, S.A, es una Sociedad de referencia en el sector español de la Tasación y una de las firmas independientes con más…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 111 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 101 contacts → | ||||
Partial evidence “P&A provides comprehensive valuation and IT consulting services for ad valorem (property) tax purposes.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 92 contacts → | ||||
Indirect evidence “For more than 75 years, Joseph J.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 89 contacts → | ||||
Partial evidence “Tax Advisors Group (TAG) is a leading National property tax consulting firm that specializes in minimizing property taxes.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 89 contacts → | ||||
Indirect evidence “Harmoni Gayrimenkul Değerleme Ve Danışmanlık A.Ş; 13 Temmuz 2007 tarihinde gayrimenkule ilişkin, yatırım danışmanlığı, fizibilite çalışması, proje değerleme ve geliştirme…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 88 contacts → | ||||
Strong evidence “LOGIC Commercial Real Estate is a full-service firm specializing in Brokerage, Property Management, Property Tax Appeal, and Development Services.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 85 contacts → | ||||
Partial evidence “Flanagan Bilton is the country’s premier Commercial Property Tax Advisory Company and our services include Commercial Property Tax Advisory, Legal Services, and a Breakthrough…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 82 contacts → | ||||
Indirect evidence “Lowery Property Advisors is a full-service, tech-enabled commercial real estate appraisal and advisory firm specializing in comprehensive commercial property valuation and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 80 contacts → | ||||
Partial evidence “Property Valuation Services is a boutique property tax consulting firm, specializing in the reduction of property tax liability for our clients.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 75 contacts → | ||||
Indirect evidence “Mitchell & Associates, Inc, began in 1946 as R.F.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 73 contacts → | ||||
Indirect evidence “Windmills is a leading asset valuation, building consulting, and management advisory services group in the United Arab Emirates.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 68 contacts → | ||||
Partial evidence “We understand that searching for the right property tax firm can be a hassle.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 61 contacts → | ||||
Indirect evidence “The Joseph C.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 54 contacts → | ||||
Partial evidence “Since 1983, Popp Hutcheson PLLC has devoted 100 percent of its practice to representing property owners for the purpose of reducing their property tax liability.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 53 contacts → | ||||
Indirect evidence “TINSA, empresa perteneciente al Grupo Cinven, con sede central en la ciudad de Madrid en España.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 52 contacts → | ||||
Indirect evidence “Antec Appraisal Group is a leader in providing real estate valuation and consulting services in Southern Ontario.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 48 contacts → | ||||
Indirect evidence “Emmerson Evaluation Sp.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: tax appeal appraisers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names tax appeal appraisers.
- Partial evidence
- Its own public description names part of tax appeal appraisers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name tax appeal appraisers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,459 tax appeal appraisers worldwide
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Tax appeal appraisers worldwide at a glance
As of Sep 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among tax appeal appraisers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for tax appeal appraisers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “tax appeal appraisers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names tax appeal appraisers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among tax appeal appraisers, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 4,062 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Tax appeal appraisers by location
8 lists · largest firstEvery Tax appeal appraisers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Tax appeal appraisers based in the United States664
- Tax appeal appraisers based in Canada66
- Tax appeal appraisers based in Germany64
- Tax appeal appraisers based in Australia31
- Tax appeal appraisers based in the Netherlands30
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names tax appeal appraisers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many tax appeal appraisers are there worldwide?
RevenueBase identified 1,459 tax appeal appraisers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Duff & Phelps, headquartered in New York, tops this list with the largest team on record.
Which country has the most tax appeal appraisers?
The United States leads with 664 companies, followed by Canada (66) and Germany (64). Every tax appeal appraisers list by country and city is linked on this page.
Which city has the most tax appeal appraisers?
Chicago leads with 36 headquartered companies, followed by Houston (30) and Dallas (27).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,062 verified decision-maker contacts tracked across these 1,459 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.