Company lists · Data refreshed September 2026
Top 25 Guardianship law firms based in San Antonio, United States
RevenueBase identified 48 guardianship law firms headquartered in San Antonio, United States as of September 2026 and tracks 174 professional contacts across them, including 76 with verified work emails. Across the United States, New York is the largest hub for this category (129 companies); San Antonio has 48.
This list covers guardianship law firms headquartered in San Antonio, United States, 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 14, 2026.
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 guardianship law firms based in San Antonio, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 17 contacts → | ||||
Partial evidence “Your legal team at Marquardt Law Firm and I believe thousandairs as well as millionaires can take advantage of tax-efficiently protecting and preserving assets, reducing family…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 15 contacts → | ||||
Partial evidence “Weisinger Law Firm is a local San Antonio Law Firm here to serve you and your family.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 12 contacts → | ||||
Partial evidence “TESSMER LAW FIRM IS COMMITTED TO PROVIDING THE RIGHT REPRESENTATION AT THE RIGHT TIME We are a full-service law firm in San Antonio, Texas, focused on providing assistance in…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 12 contacts → | ||||
Indirect evidence “Founded on a commitment to excellence and a passion for advocacy, the team at Valkenaar O'Donnell PLLC has established itself as a trusted partner for businesses and individuals…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 11 contacts → | ||||
Indirect evidence “SAN ANTONIO ATTORNEYS READY TO DEFEND YOUR RIGHTS WITH FAIRNESS AND EXPERIENCE.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 8 contacts → | ||||
Indirect evidence “Today's older adults are living longer, and many enjoy active lifestyles.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 7 contacts → | ||||
Indirect evidence “With more than 17 years of legal experience, attorney Crista Marichalar-Branch has the necessary litigation, mediation and negotiation skills to help you overcome issues…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Indirect evidence “Our practice focuses on representing business owners, investors, and managers in a broad spectrum of business and real estate matters, including entity formation, contract…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3 contacts → | ||||
Indirect evidence “The attorneys at Pulman, Cappuccio & Pullen, LLP have over 150 years of combined experience providing exemplary representation for clients in litigation, mediation and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3 contacts → | ||||
Indirect evidence “In 1990, Kathleen T.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3 contacts → | ||||
Indirect evidence “With two decades of combined experience and seven years of working together, the attorneys at Clepper Harrison and Duffy P.L.L.C.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3 contacts → | ||||
Partial evidence “At the Jacobson Law Firm, we have over 90 years of legal experience among us and we love what we do.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3 contacts → | ||||
Indirect evidence “Attorney Roland R.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 contacts → | ||||
Strong evidence “San Antonio law firm focused on providing legal services in the areas of estate planning, probate, and guardianship.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Indirect evidence “Please see website!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Strong evidence “The Aldrich Law Firm, PLLC is a boutique law firm located in San Antonio, Texas that practices primarily in the fields of probate, guardianship, estate planning, and litigation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Strong evidence “Law Firm specializing in Estate Planning, Wills, Trusts, Asset Protection, Probate, Guardianship, and Business Formation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Partial evidence “Heintzelman Law PLLC is a company based out of 11703 Huebner Rd,Ste 106-479, San Antonio, Texas, United States.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “Our firm specializes in all fiduciary matters, from creating an estate plan right for you and your family to helping the appointed executors and trustees carry out that plan.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “The Law Office of Samuel Morales is a San Antonio Law firm primarily focusing on personal injury matters, family law, and estate planning.” Source: RevenueBase Database · checked Sep 14, 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: guardianship law firms. 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 guardianship law firms.
- Partial evidence
- Its own public description names part of guardianship law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name guardianship law firms. 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 48 guardianship law firms based in San Antonio, United States
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Guardianship law firms based in San Antonio, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Antonio, so it is reported there. Company counts and contact totals on this page are exact for San Antonio, over 48 companies.
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 guardianship law firms, 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.
- What qualifies
- Companies headquartered in San Antonio, United States whose own description of what they do matches “guardianship law firms”. 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 guardianship law firms), 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 guardianship law firms, and records with no verified work email. Companies headquartered outside San Antonio are excluded even when they keep an office there.
- 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, 76 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 14, 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.
Guardianship law firms by metro in the United States
- Guardianship law firms in New York129
- Guardianship law firms in Houston108
- Guardianship law firms in Chicago84
- Guardianship law firms in Atlanta74
- Guardianship law firms in Dallas73
- Guardianship law firms in San Diego68
- Guardianship law firms in Miami62
- Guardianship law firms in Austin59
- Guardianship law firms in Las Vegas58
- Guardianship law firms in Los Angeles58
- Guardianship law firms in Tampa56
- Guardianship law firms in Denver54
- Guardianship law firms in Orlando49
- Guardianship law firms in Boca Raton47
- Guardianship law firms in Phoenix46
- Guardianship law firms in San Francisco43
- Guardianship law firms in Fort Lauderdale42
- Guardianship law firms in Indianapolis41
- Guardianship law firms in Sacramento38
- Guardianship law firms in Seattle37
- Guardianship law firms in Jacksonville36
- Guardianship law firms in Portland36
- Guardianship law firms in Boston35
- Guardianship law firms in Columbus34
- Guardianship law firms in Rochester34
- Guardianship law firms in Irvine33
- Guardianship law firms in Charlotte32
- Guardianship law firms in Scottsdale31
- Guardianship law firms in Springfield30
- Guardianship law firms in Oklahoma City29
- Guardianship law firms in Tucson29
- Guardianship law firms in Columbia28
- Guardianship law firms in Walnut Creek27
- Guardianship law firms in Albuquerque26
- Guardianship law firms in Louisville26
- Guardianship law firms in Omaha26
- Guardianship law firms in Raleigh26
- Guardianship law firms in Coral Gables25
- Guardianship law firms in Fort Worth25
- Guardianship law firms in Grand Rapids25
- Guardianship law firms in Pittsburgh25
- Guardianship law firms in Washington25
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 guardianship law firms, 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 guardianship law firms are there based in San Antonio, United States?
RevenueBase identified 48 guardianship law firms headquartered in San Antonio, United States 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?
Marquardt LAW Firm, P.C, headquartered in San Antonio, tops this list with the largest team on record.
Which city in the United States has the most guardianship law firms?
New York leads the United States with 129 headquartered companies, followed by Houston (108) and Chicago (84). San Antonio has 48.
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 76 verified decision-maker contacts tracked across these 48 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 14, 2026.
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Guardianship law firms by geography
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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.
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