| # | Company | Employees |
|---|---|---|
| 1 |
Boston Consulting Group (BCG)bcg.com
A global management consulting firm that partners with organizations to tackle challenges, drive growth, and create positive societal impact through innovative solutions |
40,412 |
| 2 |
Publicis Sapientpublicissapient.com
A digital business transformation partner, specializing in strategy, product, experience, engineering, data, and delivering impactful solutions to global organizations |
24,251 |
| 3 |
Bain & Companybain.com
Global consultancy aiding ambitious change makers define the future, achieving extraordinary results, outperforming competition, redefining industries, and tackling urgent societal challenges. |
23,729 |
| 4 |
CEOchasedimond.com
The company provides expert insights and guidance in finance, investing, and capital markets to empower clients in making wealth-enhancing decisions |
6,006 |
| 5 |
L.E.K. Consultinglek.com
Global management consulting firm providing deep industry expertise and rigorous analysis to help business leaders improve performance and create greater shareholder returns. |
4,271 |
| 6 |
Beacon Hillbhsg.com
Provides direct hire, executive search, contract consulting, and temporary staffing solutions across multiple industries including legal, technology, financial, and life sciences sectors. |
3,125 |
| 7 |
Analysis Groupanalysisgroup.com
Provides economics, finance, healthcare analytics, and strategy expertise to law firms, Fortune 500 companies, and government agencies globally. |
1,848 |
| 8 |
Trinity Life Sciencestrinitylifesciences.com
Trusted strategic partner offering evidence-based solutions for life sciences Specializing in benchmarking solutions, data-driven insights, and exceptional service for over 25 years |
1,701 |
| 9 |
Charles River Associatescrai.com
Global consulting firm specializing in litigation, regulatory, financial, and management consulting, providing economic and financial analysis, guidance on strategy and operations |
1,654 |
| 10 | 1,109 | |
| 11 | 1,045 | |
| 12 |
Eliassen Groupeliassen.com
A strategic consulting company providing business, clinical, and IT services to drive exceptional outcomes, positively impacting employees, clients, and communities |
1,042 |
| 13 | 875 | |
| 14 |
Peloton Consulting Grouppelotongroup.com
Specializing in digital transformation, this company offers expertise in EPM, ERP, HCM, SCM, Big Data & Analytics, and cloud-based data applications for organizational change |
830 |
| 15 |
Altman Solonaltmansolon.com
Strategic advisory services for telecommunications, media, and technology sectors focusing on digital innovation, go-to-market approaches, global mergers and acquisitions, and investor due diligence. |
692 |
| 16 |
ClearView Healthcare Partnersclearviewhcp.com
A global strategy consulting firm specializing in the life science sector, providing practical recommendations for complex challenges to pharmaceutical, biotech, and medical companies worldwide |
690 |
| 17 |
Sapient Global Marketslinkedin.com
Former financial services consultancy now operating as a digital business transformation partner through a global merger with other legendary industry brands. |
634 |
| 18 |
Analytix Solutionsanalytix.com
Single source provider offering integrated solutions, technological aptitude, and cross-disciplinary expertise to improve systems, processes, reliable data, and overall company profitability. |
600 |
| 19 |
The Brattle Groupbrattle.com
Provides expert economic, finance, and regulatory analysis and advice to corporations, law firms, and governments worldwide with clarity and credibility. |
595 |
| 20 |
ZoomRxzoomrx.com
A strategic healthcare consulting firm leveraging data, technology, and expertise to help shape therapy markets with collaboration, innovation, and deep analysis |
541 |
| 21 |
Advocates for Human Potential, Inc.ahpnet.com
Providing practical solutions to improve health and human services systems through research, evaluation, training, and consulting for organizations serving vulnerable populations |
515 |
| 22 |
ForHealth Consulting at UMass Chan Medical Schoolforhealthconsulting.umassmed.edu
Partnering with purposeful organizations to improve healthcare equity, effectiveness, and accessibility by transforming payment, information management, and care delivery systems |
444 |
| 23 |
Putnaminizio.com
A leading scientific and strategic consulting partner in the life science industry, helping clients bring impactful innovations to clinicians and patients worldwide |
395 |
| 24 |
Verndaleverndale.com
Digital experience agency providing strategy, design, development, and marketing for web, mobile, and ecommerce platforms to create human-centric customer journeys and business growth. |
386 |
| 25 |
Danforth Healthdanforthhealth.com
A trusted partner providing outsourced corporate and clinical functions for over 1,000 life science companies globally, offering C-Level Advisory, Finance, HR, Communications, and Development services |
374 |
| 26 | 364 | |
| 27 |
demandDrivedemanddrive.com
An integrated sales and marketing agency offering full-service solutions to optimize processes, increase revenue growth, and develop holistic strategies |
234 |
| 28 |
ECIeci-rx.com
Consulting firm specialized in providing tailored solutions to life sciences companies, covering the entire product lifecycle with expertise in FDA regulations and compliance management |
206 |
| 29 |
Pearl Meyerpearlmeyer.com
The company advises boards and senior management on building and rewarding leadership teams for long-term success, focusing on people, purpose, and performance |
190 |
| 30 |
Investor Group Services (IGS)igsinsights.com
Trusted advisory firm supporting investors and business leaders with data-driven insights for transactions, growth, and value creation in middle market companies |
185 |
| 31 |
Health Advanceshealthadvances.com
A strategy consulting firm specializing in helping healthcare clients worldwide identify growth opportunities, develop innovative strategies, evaluate M&A objectives, and more |
180 |
| 32 |
Ozemioozemio.com
Holistic talent transformation solutions tailored to specific business requirements, driving exponential growth and performance through uniquely designed pedagogy |
178 |
| 33 |
Archetype Consultingarchetypeconsulting.com
Archetype Consulting offers customized services to help clients achieve success with Business Intelligence and Enterprise Performance Management solutions through strategic vision, process improvement, and ongoing support services |
160 |
| 34 |
MPN Capital Marketsmpncapitalmarkets.com
A full-service energy management consulting firm advising businesses, governments, NGOs, homeowners, and nonprofits on improving energy procurement strategies for long-term savings |
156 |
| 35 |
Innosightinnosight.com
A strategy and innovation consulting firm part of Huron Consulting Group, helping organizations navigate disruptive change, drive growth strategies, and accelerate innovation initiatives |
152 |
| 36 |
Insource Services, Inc.insourceservices.com
Provides outsourced Finance, HR, Technology & Training services to organizations experiencing growth, offering back office functions, leadership counsel, and staff training |
151 |
| 37 |
Secure Energysesenergy.org
Trusted energy management company with 175 years of experience, guiding organizations on managing energy options through comprehensive strategies and innovative solutions |
106 |
| 38 |
Daymark Energy Advisorsdaymarkea.com
An economics and engineering consulting firm specializing in serving the North American energy industries by navigating evolving technologies, regulations, and markets |
59 |
| 39 |
Vita Global Sciences, a Kelly Companyvitaglobalsciences.com
A niche provider offering clinical data analytics solutions and functional outsourcing services for the life sciences industry |
58 |
| 40 |
Opinion Dynamicsopiniondynamics.com
This leading consulting firm specializes in energy evaluation, advising, and market research to address emerging energy issues through insightful research |
52 |
| 41 |
FullFunnelfullfunnel.co
A global revenue operations services firm that helps organizations improve their revenue programs through strategic partnerships and data-driven solutions |
45 |
| 42 |
The Bridge Groupbridgegroupinc.com
A B2B growth consulting firm specializing in bespoke go-to-market plans to help companies scale revenue through targeted solutions and data-driven expertise |
37 |
| 43 |
Aliter Investment Services LLCaliteris.com
Aliter provides strategic consulting, operational improvement, and technology solutions for investment managers, service providers, and product solutions companies |
36 |
| 44 |
The Engineengine.xyz
An organization specializing in bridging the gap between discovery and commercialization for breakthrough inventions, with a focus on Tough Tech founders They aim to address challenging global issues |
31 |
| 45 |
TeleTech Insights - formerly iKnowtionttec.com
This company helps brands analyze and utilize data efficiently to drive business performance and achieve desired outcomes through cloud-based solutions |
31 |
| 46 |
Convertivconvertiv.com
A consultancy specializing in optimizing digital experiences, technology, and data for growth-focused companies to exceed sales and marketing goals |
28 |
| 47 |
RR Associatesrrassociatesusa.com
Management consulting firm offering services in strategic planning, branding, marketing, communications, operations, and finance with experienced partners in various industries |
19 |
| 48 |
Solomon Consulting Groupsolomonconsult.com
A leading service provider offering digital transformation services, intelligent automation solutions in B2B/B2C sectors with experienced consultants, designers, and developers |
15 |
| 49 |
Stratos Consultingstratosconsulting.com
Design and build cloud-native data environments integrating commercial biopharma data to support analytics, reporting, and ongoing managed services. |
14 |
| 50 |
LeveragePointleveragepoint.com
It provides a SaaS platform for B2B companies to create and communicate value propositions, improving sales effectiveness and pricing outcomes. |
14 |
| 51 |
Katama Consulting Groupkatama.io
Tailored and cost-effective sales strategies driven by a dedicated team of trained SDRs equipped with scripts, templates, and objection-handling strategies |
13 |
| 52 |
Wellesley Cove Groupwellesleycove.com
Consulting firm specializing in organizational shifts Services range from general business practices to strategic innovation, technology, and data analysis initiatives |
12 |
| 53 |
MIDIOR Consultingmidior.com
A professional services firm specializing in empowering product and technology teams to deliver impactful solutions through data-driven insights and modern platforms |
10 |
| 54 |
My Virtual COOmyvirtualcoo.com
Consulting firm specializing in assessing, recommending, and implementing business improvements to drive growth, profitability, and enhance client and staff experiences |
6 |
| 55 |
Kent Hicks Constructionkenthicksconstruction.com
The company specializes in helping individuals and businesses create their own energy, invest in long-term energy security, live in healthy homes, and protect the environment |
4 |
| 56 |
Crimson Power Solutions, LLCbidonenergy.org
A trusted energy advisor providing competitive pricing, market intelligence, and ongoing management services to help clients save on energy costs nationwide |
3 |
| 57 |
fcgEnergyfcgenergy.com
A management consulting firm with 30+ years in energy and utilities, offering strategic solutions for short-term execution and long-term sustainability |
2 |
| 58 |
VT Technology Venturesvttv.biz
An investment and consulting firm based in Boston, MA that specializes in accelerating growth for early and growth stage technology companies |
2 |
| 59 |
Ratava Partners
Specializing in Innovative Integration Investment and Portfolio Company Management, this company invests in startups with innovative concepts and technologies to drive revenue growth and efficiency |
2 |
| 60 |
RPB Energy Economicsrpbenergyeconomics.com
Energy consulting firm specializing in economic and regulatory issues for utilities, law firms, investors, regulators and policy-makers globally Expertise in providing sustainable solutions |
2 |
| 61 |
3B Global Consulting3bglobalconsulting.com
Provider of consultancy and business services, offering solutions to businesses worldwide with a focus on global perspective and expertise |
2 |
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
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