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List of consulting firms in San Diego

Tamtam tracks 25 consulting firms headquartered in San Diego. This list ranks all of them by number of employees on LinkedIn, led by Kleinfelder, Power Digital Marketing and NextGen | GTA: A Kelly Telecom Company. Their median headcount is 49. Half of them were founded in 2009 or later.

馃嚭馃嚫 San Diego25 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Kleinfelderkleinfelder.com

Engineering, science, and construction firm offering solutions for transportation, water, energy, and private infrastructure projects with a dedicated, cross-disciplinary team

Civil Engineering 馃嚭馃嚫 San Diego 2,656 n/a
2
Power Digital Marketingpowerdigitalmarketing.com

Growth marketing firm utilizing proprietary technology to analyze digital ecosystems and develop custom data-driven playbooks for revenue growth and brand recognition worldwide.

Advertising Services 馃嚭馃嚫 San Diego 2,318 2012
3
NextGen | GTA: A Kelly Telecom Companykellytelecom.com

Provider of telecom engineering and deployment solutions for legacy, 5G, and private networks, offering staffing, scope of work, and direct hire services

Technology, Information and Internet 馃嚭馃嚫 San Diego 609 2009
4
Nan McKay and Associates (NMA)nanmckay.com

A leading provider of innovative solutions for communities nationwide, specializing in compliance-focused services for housing authorities, property management companies, and municipalities

Business Consulting and Services 馃嚭馃嚫 San Diego 483 1980
5
Ninyo & Moore, A SOCOTEC Companyninyoandmoore.com

Providing geotechnical and environmental engineering, soil and materials testing, and inspection services for governmental, commercial, and private sector clients since 1986

Civil Engineering 馃嚭馃嚫 San Diego 477 1986
6
RICKrickengineering.com

Multi-disciplinary planning, design, and engineering firm with over 65 years of experience serving public and private sector clients in various disciplines

Civil Engineering 馃嚭馃嚫 San Diego 471 1955
7
ECG Management Consultantsecgmc.com

Healthcare consulting firm working with clients to improve healthcare access, sustainability, and effectiveness through honest, tailored solutions and courageous initiatives

Business Consulting and Services 馃嚭馃嚫 San Diego 459 1973
8
Ondarocasknx.com

A leading ServiceNow Elite partner specializing in digital transformation, offering end-to-end solutions to improve service quality and reduce costs for enterprise clients

Business Consulting and Services 馃嚭馃嚫 San Diego 307 2011
9
GEOCONgeoconinc.com

A California corporation offering geotechnical engineering, environmental consulting, construction inspections, materials testing, environmental remediation contracting, and operating soils and materials testing laboratories

Civil Engineering 馃嚭馃嚫 San Diego 255 1971
10
ATA Engineeringata-e.com

Innovative engineering solutions using test, analysis, and computer-aided engineering to address manufacturers' challenges in aerospace, mechanical, and other industries

Engineering Services 馃嚭馃嚫 San Diego 240 2000
11
TSIAbit.ly

Subscription-based research and advisory company providing AI-driven insights, trends, benchmarking, and expert support to industry leaders worldwide.

Research Services 馃嚭馃嚫 San Diego 236 2009
12
SoftCloudssoftclouds.com

Guiding customers digital transformation journeys, delivering innovative, creative, consultative solutions, improving customer relationships, corporate profitability, business performance. Honesty, integrity, respect, innovation, creativity focus on employees.

IT Services and IT Consulting 馃嚭馃嚫 San Diego 205 2005
13
Retirement Benefits GroupRBGADVISORS.com

Independent retirement plan consulting firm focused on creating customized retirement plans aligned with business goals, corporate culture, and employee needs

Financial Services 馃嚭馃嚫 San Diego 49 2005
14
Cyth Systems, Inc.cyth.com

Specializing in Automation, Measurement, and Controls projects, we provide tailored solutions using mostly standard products to reduce risk and meet client specifications efficiently

Automation Machinery Manufacturing 馃嚭馃嚫 San Diego 47 1999
15
5P Consulting5pconsulting.biz

A digital transformation firm specialized in Salesforce implementation, data management, and fractional IT Management, helping businesses scale through technology solutions

Business Consulting and Services 馃嚭馃嚫 San Diego 13 2016
16
Bulldog Drummond (Acquired by Envoy)bulldogdrummond.com

A creative agency specializing in uncovering insights, developing strategies, and designing solutions to bring new ideas, brands, and products to market

Design Services 馃嚭馃嚫 San Diego 8 1997
17
Cloud Constructioncloudconstructionsd.com

Specializes in providing nationwide Salesforce implementation consulting services, with expertise in custom business process administration and development on the Salesforce platform

IT Services and IT Consulting 馃嚭馃嚫 San Diego 6 2013
18
KeyNode Solutionskeynodesolutions.com

Full-service Salesforce Consulting Partner specializing in implementation, integration, training, development, and customization to maximize business efficiency and revenue nationwide

IT Services and IT Consulting 馃嚭馃嚫 San Diego 6 2017
19
Apphienz (Salesforce Partner)apphienz.com

A Salesforce Consulting Partner specializing in sales, services, and marketing solutions for corporations and nonprofits to enhance customer connections and business operations

IT Services and IT Consulting 馃嚭馃嚫 San Diego 5 2014
20
The Culture Peopletheteambuildingexperts.com

This company specializes in transforming workplace culture by customizing strategies for engagement, communication, team development, and lasting cultural change

Business Consulting and Services 馃嚭馃嚫 San Diego 4 2015
21
Solomon & COthesolomonco.com

IT/Management consulting firm providing end-to-end solutions for electrical, IT, and Solar needs Specializing in improving internal IT infrastructure and energy efficiency for organizations

IT Services and IT Consulting 馃嚭馃嚫 San Diego 4 2011
22
N煤age Global LLCnuageglobal.com

Cloud-based consultancy helping businesses optimize processes, reduce costs, utilize remote workforce, and navigate evolving operational landscapes for growth, success, and profit

Business Consulting and Services 馃嚭馃嚫 San Diego 4 2017
23
HyperPlanarhyperplanar.com

A training and consulting company specializing in data science, analytics, and ML/AI Provides online/offline courses, as well as consulting services for various industries

IT Services and IT Consulting 馃嚭馃嚫 San Diego 4 n/a
24
AgosITagosit.com

This company offers customized IT and CSV solutions to simplify complexities for clients while ensuring regulatory compliance and data integrity

IT Services and IT Consulting 馃嚭馃嚫 San Diego 3 2019
25
CloudCompassmycloudcompass.com

Full-service Salesforce consulting partner specializing in Service/Sales/Community Cloud implementations, focusing on understanding client needs and delivering efficient solutions

IT Services and IT Consulting 馃嚭馃嚫 San Diego 2 2018

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How this list is built

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 Nov 2, 2026.

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