Company lists · Data refreshed September 2026

Top 13 Quality assurance staffing firms based in Portland, United States

Name: Quality assurance staffing firms based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 27 companies tracked

RevenueBase identified 27 company matches for quality assurance staffing firms associated with Portland, United States as of September 2026 and tracks 519 professional contacts across them, including 99 with verified work emails. Across the United States, New York is the largest hub for this category (170 companies); Portland has 27.

This list covers company matches for quality assurance staffing firms associated with Portland, 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 29, 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 29, 2026 How this list was built

27Companies

519Contacts tracked

99Verified emails

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The 13 largest quality assurance staffing firms based in Portland, United States

Ranked by team size

Top 13 of 27 company matches for quality assurance staffing firms based in Portland, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Abbott & Associates Inc.	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	n/a	140 contacts →
	Exact match “Abbott & Associates is a certified Woman-Owned and Emerging Small Business specializing in full service staffing for the healthcare, dental, administrative/office, accounting and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Vanderhouwen	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	201-500	133 contacts →
	Exact match “Locally founded, diversity-owned, and nationally certified by WBENC as a women-owned business, VanderHouwen is a premier staffing provider of technology, engineering, finance and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	ALL Star Labor And Staffing	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	11-50	53 contacts →
	Exact match “All Star Labor & Staffing, founded in Portland in 2009, is a boutique staffing agency that offers local companies a level of customer service and customization that larger…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	DPI Staffing	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	1,001-5,000	36 contacts →
	Exact match “DPI Staffing is your source for the best in temporary, temp-to-hire and direct hire staffing.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Staffing Solutions, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	1-10	18 contacts →
	Exact match “Staffing Solutions, LLC / K-Counsel is a trusted and well connected resource for temporary and full-time staffing in the legal, business services, and I.T.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Let's Work LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	11-50	17 contacts →
	Exact match “Let's Work is a leading staffing firm based in Portland, OR, specializing in on-demand and specialized staffing solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Springborn Staffing	Exact match	Portland, ME, United StatesHQ recorded Sep 29, 2026	11-50	16 contacts →
	Exact match “Springborn Staffing has been Maine’s trusted recruiting partner since 1987.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Lexicon Solutions	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	51-200	15 contacts →
	Exact match “Lexicon Solutions is a Portland, OR based full-service Information Technology and Engineering staffing firm that specializes in contract, contract-to-hire, direct placement, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Bigfoot Staffing	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	1-10	10 contacts →
	Exact match “BigFoot Staffing specializes in Temp-to-Hire Staffing and Direct Hire Recruiting for administrative and light-industrial sectors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Express Employment Professionals-East Portland OR	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	1-10	9 contacts →
	Exact match “The vision of Express Employment Professionals has been to help people find jobs and help businesses find the people and human resource services they need.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Aspire Staffing	Exact match	Portland, TN, United StatesHQ recorded Sep 29, 2026	501-1,000	2 contacts →
	Exact match “We're a Nashville based, locally owned and managed staffing company.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Apex Rover Staffing	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	51-200	2 contacts →
	Exact match “Leading healthcare professionals dedicated to creating unforgettable experiences and support for our patient communities in a time of need.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Specialized Recruiting Group	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	11-50	2 contacts →
	Exact match “Specialized Recruiting Group takes an individualized approach to professional staffing.” Recorded in the RevenueBase company graph · Sep 29, 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 “quality assurance staffing firms”. 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 13 of 27 quality assurance staffing firms based in Portland, United States

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Quality assurance staffing firms based in Portland, United States at a glance

As of Sep 29, 2026

19.1%Verified-email coverage

19.2Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Portland, so it is reported there. Company counts and contact totals on this page are exact for Portland, over 27 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 Portland, United States whose business descriptions match “quality assurance staffing firms” 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 99 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 29, 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.

Quality assurance staffing firms 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 “quality assurance staffing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quality assurance staffing firms are there based in Portland, United States?

RevenueBase identified 27 company matches for quality assurance staffing firms associated with Portland, 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?

Abbott & Associates Inc. 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 quality assurance staffing firms?

New York leads the United States with 170 company records, followed by Houston (169) and Atlanta (117). Portland has 27.

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 99 professional contacts with verified work emails tracked across these 27 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 29, 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.