Company lists · Data refreshed September 2026

Top 25 Process improvement consulting firms based in Washington, United States

Name: Process improvement consulting firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 228 companies tracked

RevenueBase identified 228 process improvement consulting firms headquartered in Washington, United States as of September 2026 and tracks 1,675 professional contacts across them, including 606 with verified work emails. New York is the largest hub.

This list covers process improvement consulting firms headquartered in Washington, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

228Companies

1,675Contacts tracked

606Verified emails

Unlock all 228 companies Free signup · no credit card · 500 free credits

The 25 largest process improvement consulting firms based in Washington, United States

Ranked by team size

Top 25 of 228 process improvement consulting firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names process improvement consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Herren AssociatesIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	142
	“Here at Herren, our goals are to drive efficiency and maximize the value of every dollar our clients spend.” Source: company website · checked Sep 5, 2026
2	Telesolv ConsultingPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	201-500	132
	“To become a demand business, an organization must constantly improve the value created by its core business processes.” Source: company website · checked Sep 5, 2026
3	Cobec, INCPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	103
	“We are a people-centric company- helping organizations improve processes, decision-making, and performance-We build dashboards integrating multiple data sources to enable true…” Source: company website · checked Sep 5, 2026
4	Blue Water ThinkingIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	91
	“Strategy, Management and Technology Consultancy” Source: company website · checked Sep 5, 2026
5	Censeo Consulting GroupIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	84
	“Running an organization and executing plans is hard work.” Source: company website · checked Sep 5, 2026
6	Willpower ConsultationIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	75
	“Willpower Consultation offers direct solutions for your corporate strategy.” Source: company website · checked Sep 5, 2026
7	Longevity ConsultingPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	71
	“Longevity Consulting is a customer-focused strategic management and IT consulting firm that helps federal agencies achieve mission objectives, improve outcomes, and strengthen…” Source: company website · checked Sep 5, 2026
8	Collaborative Mind, LLC CmindIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	56
	“CMIND assists its clients strategize, leverage and implement practical solutions to maintain their competitive advantage.” Source: company website · checked Sep 5, 2026
9	Prosource360 Consulting ServicesPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	47
	“Founded in 2011, ProSource360 is a premier professional, healthcare and technology services consulting firm supporting federal and commercial markets.” Source: company website · checked Sep 5, 2026
10	Cascades Technologies, INCPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	47
	“Cascades Technologies is a Professional Consulting and IT Services firm with a commitment to personal and profession integrity.” Source: company website · checked Sep 5, 2026
11	Capital GroupPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	43
	“Capital Group is a management consulting firm with more than a decade of experience in providing effective and innovative consulting services to public and private sector clients.” Source: company website · checked Sep 5, 2026
12	Trust Consulting Services INCIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	201-500	42
	“We bring an experience unmatched anywhere else, with knowledgeable and thoughtful consultants plus flexible, tailored approaches, all centered on the right outcomes for your…” Source: company website · checked Sep 5, 2026
13	Esentio TechnologiesPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	35
	“eSentio Technologies is a leading provider of business and technology consulting and implementation services to the world’s largest law firms.” Source: company website · checked Sep 5, 2026
14	Atlas ResearchPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	201-500	30
	“Atlas Research partners with clients to plan and execute enterprise-level transformation and performance improvement initiatives.” Source: company website · checked Sep 5, 2026
15	BEN Allegretti Consulting, INCIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	23
	Source: company website · checked Sep 5, 2026
16	532 Group LLCPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	1-10	22
	“532 Group LLC (“532 Group”) is a innovation, operations and technology consulting firm providing services to government, health, and financial sector clients.” Source: company website · checked Sep 5, 2026
17	OPXIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	22
	“We make good companies work better.” Source: company website · checked Sep 5, 2026
18	SZH ConsultingPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	18
	“SZH Consulting LLC is a boutique management consulting and coaching firm, specializing in the science and art of organizational effectiveness and executive coaching.” Source: company website · checked Sep 5, 2026
19	Bernuth & WilliamsonPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	13
	“Bernuth & Williamson provides consulting services in the areas of strategy, change management, and organizational development to leading nonprofits, foundations, associations, and…” Source: company website · checked Sep 5, 2026
20	Clarke ConsultingPartial evidence	Washington, United StatesHQ checked Sep 5, 2026	1-10	11
	“Clarke Consulting focuses on helping organizations achieve higher performance and effectiveness through developing constructive organizational cultures, effective leadership and…” Source: company website · checked Sep 5, 2026
21	The Quality CoachPartial evidence	Washington, MO, United StatesHQ checked Sep 5, 2026	11-50	10
	“The Quality Coach is a full-service educational, coaching, and consulting group dedicated to helping others improve quality, customer retention, productivity, and profits by…” Source: company website · checked Sep 5, 2026
22	Buckner Energy LLCIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	10
	“We help business owners and operators identify and implement the right technologies that enable operational excellence.” Source: company website · checked Sep 5, 2026
23	ThelanIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	9
	“Thelan is a professional services firm whose project management consultancy practice – with core competencies in Strategy, Planning, and Implementation – is at the center of its…” Source: company website · checked Sep 5, 2026
24	Co-Creation PartnersIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	1-10	8
	“OUR PROMISE We enable organizations to sustainably improve business performance.” Source: company website · checked Sep 5, 2026
25	Captivate PerspectivesIndirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	1-10	8
	“Captivate Perspectives provides high quality talents and services to support organizations in achieving maximum and positive results.” Source: company website · checked Sep 5, 2026

Showing 25 of 228 process improvement consulting firms based in Washington, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 606 reachable decision-makers.

Free signup · no credit card

See all 228 companies

Process improvement consulting firms based in Washington, United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 527 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

159

11-50

51-200

201-500

10001+

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 228 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 process improvement consulting 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 Washington, United States whose own description of what they do matches “process improvement consulting 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 process improvement consulting firms, and records with no verified work email. Companies headquartered outside Washington 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, 606 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.

Process improvement consulting firms by metro in the United States

Frequently asked

How many process improvement consulting firms are there based in Washington, United States?

RevenueBase identified 228 process improvement consulting firms headquartered in Washington, 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?

Herren Associates, headquartered in Washington, tops this list with the largest team on record.

Which city has the most process improvement consulting firms?

New York leads with 527 headquartered companies, followed by Atlanta (396) and Houston (391).

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 606 verified decision-maker contacts tracked across these 228 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.

Ready to reach these companies? Verified emails and direct dials for all 228 process improvement consulting firms based in Washington, United States. Start with a free account, no credit card.

Get the full list

Related lists

Process improvement consulting firms by geography

Browse the directory

Browse: Companies home · Process improvement consulting firms in United States · All United States lists · All Process improvement consulting firms lists · New lists

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.