Company lists · Data refreshed September 2026
Top 25 Portfolio accounting firms based in the United States
RevenueBase identified 590 portfolio accounting firms headquartered in the United States as of September 2026 and tracks 10,802 professional contacts across them, including 5,334 with verified work emails and 4,918 with mobile numbers. New York is the largest hub.
This list covers portfolio accounting firms headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 portfolio accounting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,114 | ||||
“Invesco is dedicated to helping investors around the world rethink possibility.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,792 | ||||
“We are a global investment firm that aims to help pension plans, endowments & foundations, healthcare systems, and private clients achieve their investment goals and maximize…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | VestmarkIndirect evidence | 430 | |||
“Headquartered outside of Boston, Mass.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Princeton Financial SystemsPartial evidence | 281 | |||
“Princeton Financial Systems, a State Street company, is a leading provider of investment accounting, investment compliance, data management, performance measurement, and reporting…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | City National RochdalePartial evidence | 182 | |||
“City National Rochdale is an investment management firm specializing in intelligently personalized portfolio management for high-net-worth individuals, families, and foundations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 139 | ||||
“Boyd Watterson Asset Management is an employee-owned firm that traces its roots to 1928.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | Zacks Investment ManagementIndirect evidence | 130 | |||
“In 1992, Zacks Investment Management was established as a wholly owned subsidiary of Zacks Investment Research.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | LOS Angeles Capital ManagementIndirect evidence | 116 | |||
“Los Angeles Capital Management (LACM) was founded in 2002 by principals seeking to build an independent, client-centric firm focused on Los Angeles Capital's Dynamic Alpha Stock…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 115 | ||||
“Cheetah, a business unit of Accutech Systems Corp, provides solutions for trust accounting, investment management, trading, reporting, and advanced portfolio management, enabling…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | ONE Capital Management, LLCPartial evidence | 101 | |||
“Established in 2001, One Capital Management, LLC is a global investment management firm focused on managing portfolios for private families, endowments, foundations, tax-exempt…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 96 | ||||
“Asset Vantage was founded in 2011 by a family office of a technology group as a next generation, cloud/mobile-based asset management, accounting and reporting system catering to…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | TAG AssociatesPartial evidence | 85 | |||
“TAG Associates is a leading multi-family office and portfolio management firm, entrusted with over $7 billion in assets under management for approximately 100 UHNW families.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 83 | ||||
“Fi-Tek Wealth Solutions originated out of an internal technology development effort at the wealth management firm founded by the Rockefeller family.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 79 | ||||
“CSSI is a software consulting and BackOffice services company helping investment management firms get the most out of their portfolio management systems.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 72 | ||||
“Foundations Investment Advisors is an SEC Registered Investment Adviser (RIA).” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 65 | ||||
“As a trusted wealth management partner since 1986, Appleton Partners takes equal stock in relationships and investment performance to meet the individual needs of our clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 56 | ||||
“With our unique, research-driven process and advanced, proprietary technology, our multidisciplinary team provides a highly customized single-family office approach to building…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Osterweis Capital ManagementIndirect evidence | 56 | |||
“Osterweis Capital Management (“Osterweis”) was founded in 1983 by John S.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 55 | ||||
“Destination Wealth Management is a fee-based wealth management firm providing first class investment research, disciplined portfolio management, and prudent financial planning…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Shelton Capital ManagementIndirect evidence | 54 | |||
“Shelton Capital Management (Shelton) is a boutique investment firm that helps investors pursue their financial goals through tailored investment solutions and human-centric…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 54 | ||||
“At Anchor Capital Advisors LLC, a passion for our clients’ success defines our culture: finding value, building and preserving wealth-every day.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | The London CompanyIndirect evidence | 53 | |||
“Founded in 1994 in Richmond, VA, The London Company is a majority employee-owned firm managing $33B in assets* across the capitalization spectrum.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Drake & Associates, LLCPartial evidence | 48 | |||
“Drake & Associates, LLC provides clients with a complimentary, customized wealth management plan that takes into consideration your complete portfolio as well as your unique…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 43 | ||||
“Compass Rose Asset Management LP” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 40 | ||||
“Klingenstein, Fields & Co, L.P, doing business as Klingenstein Fields Advisors ("KF Advisors"), is a privately owned investment management firm with offices in New York City and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 590 portfolio accounting firms based in the United States
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Portfolio accounting firms based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 portfolio accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “portfolio accounting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among portfolio accounting firms, and records with no verified work email. Companies headquartered outside United States 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 an evidence 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, 5,334 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 5, 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.
Portfolio accounting firms by metro
- Portfolio accounting firms in New York32
Frequently asked
How many portfolio accounting firms are there based in the United States?
RevenueBase identified 590 portfolio accounting firms headquartered in the 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?
Invesco US, headquartered in Atlanta, tops this list with the largest team on record.
Which city has the most portfolio accounting firms?
New York leads with 32 headquartered companies, followed by Atlanta (14) and San Francisco (14).
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 5,334 verified decision-maker contacts tracked across these 590 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 5, 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 SmartSearch, 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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