Company lists · Data refreshed September 2026
Top 25 Big consulting firms based in Japan
RevenueBase identified 107 company matches for big consulting firms associated with Japan as of September 2026 and tracks 2,453 professional contacts across them, including 321 with verified work emails. Jing is the largest hub.
This list covers company matches for big consulting firms associated with Japan, 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 21, 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 big consulting firms based in Japan
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 696 contacts → | ||||
Exact match “is a management consulting company based out of, Japan.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 290 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 177 contacts → | ||||
Exact match “Japan.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 125 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 72 contacts → | ||||
Exact match “Cambridge Technology Partners is a consulting firm that works with clients to deliver successful projects and facilitate positive change.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 64 contacts → | ||||
Exact match “JMAC is Japan's oldest, as well as one of its largest management consulting firms.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 57 contacts → | ||||
Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 54 contacts → | ||||
Exact match “t-\t-\t-\t-\t-\t-IT” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 47 contacts → | ||||
Exact match “JP Tokyo is a leading management consulting and IT services firm, established in 2016 with a mission to empower global brands.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 31 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 23 contacts → | ||||
Exact match “Established in 2012, with a vision to strengthening clients’ market competitiveness through data utilization, We have been providing an single channel integrated service of…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 17 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 15 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 15 contacts → | ||||
Exact match “Gran Manibus | A Technology-Led Business Consulting Firm Gran ManibusSCSK” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 14 contacts → | ||||
Exact match “JG CORPORATION IT ITIT JG CORPORATION guides companies in Japan and around the world improve their productivity through consulting and technology.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 12 contacts → | ||||
Exact match “Weiden Haus is a consulting firm of brand marketing.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 11 contacts → | ||||
Exact match “We are members of Cordence Worldwide, the global network of truly connected consultancy firms with the ability to think and deliver together.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 10 contacts → | ||||
Exact match “4 issue3 ① ② ③m&a” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 9 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 7 contacts → | ||||
Exact match “Google BPOSNS” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 7 contacts → | ||||
Exact match “is a management consulting company based out of, Japan.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “Beasley & Associates 500 20244 : Winwin : Value’Quality of Life ` Consulting & Professional Services (ManagementStrategyIT) Tech Engineering / Development Sales / Pre-sales /…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 5 contacts → | ||||
Exact match “IT Partners” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match “IT We provide services ranging from business and information strategy planning to business reform and support for the formulation of strategies for change and reform centered on…” Recorded in the RevenueBase company graph · Sep 21, 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 “big consulting 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 25 of 107 big consulting firms based in Japan
See the full list, filter by size, metro and specialty, and access 321 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Big consulting firms based in Japan at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 107 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 Japan whose business descriptions match “big consulting 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 321 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 21, 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.
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 “big consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many big consulting firms are there based in Japan?
RevenueBase identified 107 company matches for big consulting firms associated with Japan 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?
デロイトトーマツコンサルティング(合同) tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most big consulting firms?
Jing leads with 23 company records, followed by Tokyo (11) and Minato (4).
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 321 professional contacts with verified work emails tracked across these 107 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 107 big consulting firms based in Japan. Start with a free account, no credit card.
Download this list →Related lists
Big consulting firms by geography
- Big consulting firms based in Adelaide, Australia
- Big consulting firms based in Brisbane, Australia
- Big consulting firms based in Canberra, Australia
- Big consulting firms based in Melbourne, Australia
- Big consulting firms based in Perth, Australia
- Big consulting firms based in Sydney, Australia
- Big consulting firms based in Belo Horizonte, Brazil
- Big consulting firms based in Curitiba, Brazil
- Big consulting firms based in Porto Alegre, Brazil
- Big consulting firms based in Rio De Janeiro, Brazil
- Big consulting firms based in Sao Paulo, Brazil
- Big consulting firms based in Calgary, Canada
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Big consulting firms based in Adelaide, Australia
- Big consulting firms based in Brisbane, Australia
- Big consulting firms based in Canberra, Australia
- Big consulting firms based in Melbourne, Australia
- Big consulting firms based in Perth, Australia
- Big consulting firms based in Sydney, Australia
Company intelligence · public preview
Top 25 big consulting firms based in Japan
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 107 matching company records for big consulting firms based in Japan, with 2,453 tracked contacts and 321 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 big consulting firms based in Japan
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  デロイトトーマツコンサルティング(合同)deloitte.comHQ: 千代田区, JapanReported employees: 501-1,000 | 千代田区, Japan | 501-1,000 | Exact match | 696 contacts → |
“is a management consulting company based out of, Japan.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  NTT Data Institute Of Management Consulting, INCnttdata-strategy.comHQ: 千代田区, JapanReported employees: 501-1,000 | 千代田区, Japan | 501-1,000 | Exact match | 290 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 3 |  日立コンサルティング(hitachi Consulting Co., Ltd.)hitachiconsulting.co.jpHQ: 千代田区, JapanReported employees: 201-500 | 千代田区, Japan | 201-500 | Exact match | 177 contacts → |
“Japan.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: 港区, JapanReported employees: 1,001-5,000 | 港区, Japan | 1,001-5,000 | Exact match | 125 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 |  Cambridge Technology Partnersctp.co.jpHQ: Minato, JapanReported employees: 51-200 | Minato, Japan | 51-200 | Exact match | 72 contacts → |
“Cambridge Technology Partners is a consulting firm that works with clients to deliver successful projects and facilitate positive change.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  JMA Consultants Inc. Jmacjmac.co.jpHQ: Shiba-koen, JapanReported employees: 201-500 | Shiba-koen, Japan | 201-500 | Exact match | 64 contacts → |
“JMAC is Japan's oldest, as well as one of its largest management consulting firms.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Protiviti Japanprotiviti.comHQ: 千代田区, JapanReported employees: 5,001-10,000 | 千代田区, Japan | 5,001-10,000 | Exact match | 57 contacts → |
“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 株式会社レイヤーズ・コンサルティングlayers.co.jp HQ: 品川区, JapanReported employees: 201-500 | 品川区, Japan | 201-500 | Exact match | 54 contacts → |
“t-\t-\t-\t-\t-\t-IT” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  JP Tokyo & Co. INCjptokyo.co.jpHQ: Tokyo, JapanReported employees: 201-500 | Tokyo, Japan | 201-500 | Exact match | 47 contacts → |
“JP Tokyo is a leading management consulting and IT services firm, established in 2016 with a mission to empower global brands.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | (株)経営共創基盤igpi.co.jp HQ: 千代田区, JapanReported employees: 11-50 | 千代田区, Japan | 11-50 | Exact match | 31 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | GIXOgixo.jp HQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 23 contacts → |
“Established in 2012, with a vision to strengthening clients’ market competitiveness through data utilization, We have been providing an single channel integrated service of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Coum INCcoum.co.jpHQ: 港区, JapanReported employees: 1-10 | 港区, Japan | 1-10 | Exact match | 17 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Slalom Japanslalom.comHQ: 港区, JapanReported employees: 51-200 | 港区, Japan | 51-200 | Exact match | 15 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Gran Manibusgranmanibus.comHQ: 千代田区, JapanReported employees: 11-50 | 千代田区, Japan | 11-50 | Exact match | 15 contacts → |
“Gran Manibus | A Technology-Led Business Consulting Firm Gran ManibusSCSK” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  JG Corporationjg-corporation.comHQ: 中央区, JapanReported employees: 51-200 | 中央区, Japan | 51-200 | Exact match | 14 contacts → |
“JG CORPORATION IT ITIT JG CORPORATION guides companies in Japan and around the world improve their productivity through consulting and technology.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Weiden Hausweiden-haus.comHQ: Minato, JapanReported employees: 11-50 | Minato, Japan | 11-50 | Exact match | 12 contacts → |
“Weiden Haus is a consulting firm of brand marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Genex Partnersgenexpartners.comHQ: 港区, JapanReported employees: 11-50 | 港区, Japan | 11-50 | Exact match | 11 contacts → |
“We are members of Cordence Worldwide, the global network of truly connected consultancy firms with the ability to think and deliver together.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  株式会社issue Research & Technologiesissue-inc.comHQ: 港区, JapanReported employees: 1-10 | 港区, Japan | 1-10 | Exact match | 10 contacts → |
“4 issue3 ① ② ③m&a” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | UL Systemsulsystems.co.jp HQ: Jing, JapanReported employees: 201-500 | Jing, Japan | 201-500 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  アドア株式会社|adoorr INCadoorr.comHQ: 渋谷区, JapanReported employees: 11-50 | 渋谷区, Japan | 11-50 | Exact match | 7 contacts → |
“Google BPOSNS” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Venectvenect.jpHQ: 渋谷区, JapanReported employees: 11-50 | 渋谷区, Japan | 11-50 | Exact match | 7 contacts → |
“is a management consulting company based out of, Japan.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Beasley & Associates K.Kbeasley-associates.comHQ: Tokyo, JapanReported employees: 1-10 | Tokyo, Japan | 1-10 | Exact match | 5 contacts → |
“Beasley & Associates 500 20244 : Winwin : Value’Quality of Life ` Consulting & Professional Services (ManagementStrategyIT) Tech Engineering / Development Sales / Pre-sales /…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Umito Partners INCumitopartners.comHQ: 千代田区, JapanReported employees: 1-10 | 千代田区, Japan | 1-10 | Exact match | 5 contacts → |
“IT Partners” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  株式会社grandaidergrandaider.comHQ: 大田区, JapanReported employees: 1-10 | 大田区, Japan | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 |  Casewise Consultingcasewise.co.jpHQ: Tokyo, JapanReported employees: 51-200 | Tokyo, Japan | 51-200 | Exact match | 4 contacts → |
“IT We provide services ranging from business and information strategy planning to business reform and support for the formulation of strategies for change and reform centered on…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 107 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Big consulting firms: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
106 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 107 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for big consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many big consulting firms did RevenueBase find based in Japan?
The saved snapshot records 107 matching company records, 2,453 tracked contacts and 321 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Big consulting firms by geography
- Big consulting firms based in Adelaide, Australia
- Big consulting firms based in Brisbane, Australia
- Big consulting firms based in Canberra, Australia
- Big consulting firms based in Melbourne, Australia
- Big consulting firms based in Perth, Australia
- Big consulting firms based in Sydney, Australia
- Big consulting firms based in Belo Horizonte, Brazil
- Big consulting firms based in Curitiba, Brazil
- Big consulting firms based in Porto Alegre, Brazil
- Big consulting firms based in Rio De Janeiro, Brazil
- Big consulting firms based in Sao Paulo, Brazil
- Big consulting firms based in Calgary, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 big consulting firms based in Japan. Snapshot: September 21, 2026. https://revenuebase.ai/companies/big-consulting-firms/japan.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Big consulting firms based in Adelaide, Australia
- Big consulting firms based in Brisbane, Australia
- Big consulting firms based in Canberra, Australia
- Big consulting firms based in Melbourne, Australia
- Big consulting firms based in Perth, Australia
- Big consulting firms based in Sydney, Australia
Company intelligence · public preview
Top 25 big consulting firms based in Japan
RevenueBase records 107 matching company records for big consulting firms based in Japan, with 2,453 tracked contacts and 321 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 big consulting firms based in Japan
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | デロイトトーマツコンサルティング(合同)deloitte.com HQ: 千代田区, JapanReported employees: 501-1,000 | 千代田区, Japan | 501-1,000 | Exact match | 696 contacts → |
“is a management consulting company based out of, Japan.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | NTT Data Institute Of Management Consulting, INCnttdata-strategy.com HQ: 千代田区, JapanReported employees: 501-1,000 | 千代田区, Japan | 501-1,000 | Exact match | 290 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 3 | 日立コンサルティング(hitachi Consulting Co., Ltd.)hitachiconsulting.co.jp HQ: 千代田区, JapanReported employees: 201-500 | 千代田区, Japan | 201-500 | Exact match | 177 contacts → |
“Japan.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: 港区, JapanReported employees: 1,001-5,000 | 港区, Japan | 1,001-5,000 | Exact match | 125 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 | Cambridge Technology Partnersctp.co.jp HQ: Minato, JapanReported employees: 51-200 | Minato, Japan | 51-200 | Exact match | 72 contacts → |
“Cambridge Technology Partners is a consulting firm that works with clients to deliver successful projects and facilitate positive change.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | JMA Consultants Inc. Jmacjmac.co.jp HQ: Shiba-koen, JapanReported employees: 201-500 | Shiba-koen, Japan | 201-500 | Exact match | 64 contacts → |
“JMAC is Japan's oldest, as well as one of its largest management consulting firms.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Protiviti Japanprotiviti.com HQ: 千代田区, JapanReported employees: 5,001-10,000 | 千代田区, Japan | 5,001-10,000 | Exact match | 57 contacts → |
“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 株式会社レイヤーズ・コンサルティングlayers.co.jp HQ: 品川区, JapanReported employees: 201-500 | 品川区, Japan | 201-500 | Exact match | 54 contacts → |
“t-\t-\t-\t-\t-\t-IT” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | JP Tokyo & Co. INCjptokyo.co.jp HQ: Tokyo, JapanReported employees: 201-500 | Tokyo, Japan | 201-500 | Exact match | 47 contacts → |
“JP Tokyo is a leading management consulting and IT services firm, established in 2016 with a mission to empower global brands.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | (株)経営共創基盤igpi.co.jp HQ: 千代田区, JapanReported employees: 11-50 | 千代田区, Japan | 11-50 | Exact match | 31 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | GIXOgixo.jp HQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 23 contacts → |
“Established in 2012, with a vision to strengthening clients’ market competitiveness through data utilization, We have been providing an single channel integrated service of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Coum INCcoum.co.jp HQ: 港区, JapanReported employees: 1-10 | 港区, Japan | 1-10 | Exact match | 17 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Slalom Japanslalom.com HQ: 港区, JapanReported employees: 51-200 | 港区, Japan | 51-200 | Exact match | 15 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Gran Manibusgranmanibus.com HQ: 千代田区, JapanReported employees: 11-50 | 千代田区, Japan | 11-50 | Exact match | 15 contacts → |
“Gran Manibus | A Technology-Led Business Consulting Firm Gran ManibusSCSK” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | JG Corporationjg-corporation.com HQ: 中央区, JapanReported employees: 51-200 | 中央区, Japan | 51-200 | Exact match | 14 contacts → |
“JG CORPORATION IT ITIT JG CORPORATION guides companies in Japan and around the world improve their productivity through consulting and technology.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Weiden Hausweiden-haus.com HQ: Minato, JapanReported employees: 11-50 | Minato, Japan | 11-50 | Exact match | 12 contacts → |
“Weiden Haus is a consulting firm of brand marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Genex Partnersgenexpartners.com HQ: 港区, JapanReported employees: 11-50 | 港区, Japan | 11-50 | Exact match | 11 contacts → |
“We are members of Cordence Worldwide, the global network of truly connected consultancy firms with the ability to think and deliver together.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 株式会社issue Research & Technologiesissue-inc.com HQ: 港区, JapanReported employees: 1-10 | 港区, Japan | 1-10 | Exact match | 10 contacts → |
“4 issue3 ① ② ③m&a” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | UL Systemsulsystems.co.jp HQ: Jing, JapanReported employees: 201-500 | Jing, Japan | 201-500 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | アドア株式会社|adoorr INCadoorr.com HQ: 渋谷区, JapanReported employees: 11-50 | 渋谷区, Japan | 11-50 | Exact match | 7 contacts → |
“Google BPOSNS” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Venectvenect.jp HQ: 渋谷区, JapanReported employees: 11-50 | 渋谷区, Japan | 11-50 | Exact match | 7 contacts → |
“is a management consulting company based out of, Japan.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Beasley & Associates K.Kbeasley-associates.com HQ: Tokyo, JapanReported employees: 1-10 | Tokyo, Japan | 1-10 | Exact match | 5 contacts → |
“Beasley & Associates 500 20244 : Winwin : Value’Quality of Life ` Consulting & Professional Services (ManagementStrategyIT) Tech Engineering / Development Sales / Pre-sales /…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Umito Partners INCumitopartners.com HQ: 千代田区, JapanReported employees: 1-10 | 千代田区, Japan | 1-10 | Exact match | 5 contacts → |
“IT Partners” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 株式会社grandaidergrandaider.com HQ: 大田区, JapanReported employees: 1-10 | 大田区, Japan | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Casewise Consultingcasewise.co.jp HQ: Tokyo, JapanReported employees: 51-200 | Tokyo, Japan | 51-200 | Exact match | 4 contacts → |
“IT We provide services ranging from business and information strategy planning to business reform and support for the formulation of strategies for change and reform centered on…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 107 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Big consulting firms: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
106 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 107 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for big consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many big consulting firms did RevenueBase find based in Japan?
The saved snapshot records 107 matching company records, 2,453 tracked contacts and 321 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Big consulting firms by geography
- Big consulting firms based in Adelaide, Australia
- Big consulting firms based in Brisbane, Australia
- Big consulting firms based in Canberra, Australia
- Big consulting firms based in Melbourne, Australia
- Big consulting firms based in Perth, Australia
- Big consulting firms based in Sydney, Australia
- Big consulting firms based in Belo Horizonte, Brazil
- Big consulting firms based in Curitiba, Brazil
- Big consulting firms based in Porto Alegre, Brazil
- Big consulting firms based in Rio De Janeiro, Brazil
- Big consulting firms based in Sao Paulo, Brazil
- Big consulting firms based in Calgary, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 big consulting firms based in Japan. Snapshot: September 21, 2026. https://revenuebase.ai/companies/big-consulting-firms/japan.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Big consulting firms based in Adelaide, Australia
- Big consulting firms based in Brisbane, Australia
- Big consulting firms based in Canberra, Australia
- Big consulting firms based in Melbourne, Australia
- Big consulting firms based in Perth, Australia
- Big consulting firms based in Sydney, Australia