Company lists · Data refreshed September 2026

Top 15 HR software professional services based in Seattle, United States

Name: HR software professional services based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 35 companies tracked

RevenueBase identified 35 company matches for HR software professional services associated with Seattle, United States as of September 2026 and tracks 1,706 professional contacts across them, including 518 with verified work emails. Across the United States, New York is the largest hub for this category (233 companies); Seattle has 35.

This list covers company matches for HR software professional services associated with Seattle, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 26, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 26, 2026 How this list was built

35Companies

1,706Contacts tracked

518Verified emails

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The 15 largest HR software professional services based in Seattle, United States

Ranked by team size

Top 15 of 35 company matches for HR software professional services based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 26, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Keka HR	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	501-1,000	1,182 contacts →
	Exact match “Keka is a leading unified HR and payroll platform that helps organizations run people operations with consistency, compliance, and operational clarity.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
2	Aquera	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	201-500	339 contacts →
	Exact match “Each day, Aquera automates over four million Joiner, Mover, Leaver (JML) transactions for millions of workers worldwide with the Aquera 360 HR & Identity Integration Platform.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
3	PAYNW	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	51-200	49 contacts →
	Exact match “At PayNW, we help businesses make sense of payroll and HCM as things get more complex.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
4	Mitratech Trakstar	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	51-200	38 contacts →
	Exact match “In April 2023, Trakstar was acquired by Mitratech.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
5	Highbrow LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	11-50	28 contacts →
	Exact match “Highbrow LLC" has been founded by professionals having deep industry experience.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
6	Plum Coaching & HR Consulting	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	11-50	20 contacts →
	Exact match “Plum provides a range of HR services, as well as career-related coaching.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
7	HR Group International	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	6 contacts →
	Exact match “Human Resources Group International, Inc.(HRGI) is a group of Human Resources consultants with over 25 years of experience in the field providing comprehensive human resources…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
8	Trillium Hiring Services	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	3 contacts →
	Exact match “Delivering Talent Management Strategy, Hiring Process Consulting and Tactical Execution for stage appropriate growth.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
9	Modern Human HR	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	3 contacts →
	Exact match “Modern Human helps people be and do their best for the benefit of innovative Pacific Northwest companies that see HR as a tool for achieving strategic goals.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
10	Hruprise	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	3 contacts →
	Exact match “We support employees with independent HR coaching.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
11	HR Consultant Solutions, LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	2 contacts →
	Exact match “HR Consultant Solutions, LLC partners with mid to large-sized companies to measurably improve employee and organizational performance while minimizing employment practice risk.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
12	Alignmental	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	1 contacts →
	Exact match “I advise clients on AI technology, business strategy, and organizational development.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
13	CDS Human Capital Consulting LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	1 contacts →
	Exact match “cDs Human Capital Consulting LLC was founded in 2016 by Carla S Dye, a human resource consulting company located in the Washington DC Metropolitan area focused on emerging…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
14	BIG Wave Recruiting	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	1 contacts →
	Exact match “Are you a CEO, CFO, or in HR leadership?” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
15	People Decoders	Exact match	Seattle, WA, United StatesHQ recorded Sep 26, 2026	1-10	1 contacts →
	Exact match “We are People Decoders, and we know people.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “HR software professional services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 15 of 35 HR software professional services based in Seattle, United States

See the full list, filter by size, metro and specialty, and access 518 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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HR software professional services based in Seattle, United States at a glance

As of Sep 26, 2026

30.4%Verified-email coverage

48.7Average contacts per company

1-10Median size (employees)

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 35 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Seattle, United States whose business descriptions match “HR software professional services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 518 professional contacts with verified work emails across the full matched dataset. 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 26, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

HR software professional services by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “HR software professional services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many HR software professional services are there based in Seattle, United States?

RevenueBase identified 35 company matches for HR software professional services associated with Seattle, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Keka HR tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most HR software professional services?

New York leads the United States with 233 company records, followed by Atlanta (175) and Houston (114). Seattle has 35.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 518 professional contacts with verified work emails tracked across these 35 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 26, 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.