18 Best Marketing Consulting Firms to Hire in 2025

Choosing the right marketing consulting firm can completely change the trajectory of your brand’s growth.

Whether you need help defining your go-to-market strategy, improving ROI, or scaling campaigns across channels, the right consulting partner brings the clarity and direction most in-house teams can’t find on their own.

In this list, we highlight 20 of the top marketing consulting firms – a mix of global leaders and smaller, specialized teams – helping companies turn strategy into results. These firms know how to move businesses forward from branding and digital transformation to customer experience and demand gen.

Each one has a proven track record and brings something different to the table. The hard part? Choosing the one that fits your goals best.

1. Udonis

Description

We’re a mobile marketing agency that helps game studios grow through data-backed strategy, not just execution. Our consulting services are built for mobile gaming and app companies looking to scale profitably while making smarter marketing decisions.

We’ve supported teams of all sizes – from indie devs to top publishers – with growth plans, budget allocation guidance, video production, creative strategy, and performance optimization.

What makes us different is our specialization in mobile gaming, paired with deep hands-on experience managing over $150 million in ad spend.

We’re not just executors – we’re strategic partners invested in helping you grow.

Main Services

• Paid Social (Meta, TikTok, Snapchat)
• Mobile Game Marketing
• Creative Production for Ads
• User Acquisition
• Media Buying & Campaign Management

Headquarters

Delaware, USA & Osijek, Croatia (Global team)

Team Size

10–50

Notable Clients

SYBO, King, Voodoo, Tastypill, Playsome

2. Accenture Song

Description

Accenture Song is a global marketing consultancy that helps brands transform their digital experience, marketing strategy, and creative execution. They work with enterprises, Fortune 500 companies, and high-growth businesses across nearly every industry.

What sets them apart is their ability to combine business consulting, creative storytelling, and cutting-edge technology into a single offering.

As one of the largest marketing services networks in the world, they deliver scalable solutions built for long-term brand growth.

Main Services

• Brand & Experience Strategy
• Performance Marketing
• Creative & Content Development
• Digital Transformation
• Commerce & Customer Experience

Headquarters

New York, NY, USA (Global offices)

Team Size

Over 10,000

Notable Clients

Coca-Cola, BMW, Nike, Marriott, Google

3. Deloitte Digital

Description

Deloitte Digital is the creative and marketing consulting arm of Deloitte, offering strategy, design, and tech services to help brands modernize how they connect with customers. They work with enterprise clients across finance, retail, healthcare, and B2B.

What makes them stand out is their ability to integrate creative thinking with enterprise-grade consulting, backed by Deloitte’s global resources and technical depth.

They’ve helped some of the world’s biggest brands evolve their marketing from siloed campaigns into full digital ecosystems.

Main Services

• Marketing & Experience Strategy
• CRM & Personalization
• Performance Media
• Commerce & Digital Experience
• Creative & Content

Headquarters

New York, NY, USA (Global offices)

Team Size

Over 10,000

Notable Clients

Adobe, Morgan Stanley, Starbucks, Verizon, Johnson & Johnson

4. McKinsey & Company

Description

McKinsey & Company is a global consulting firm that helps businesses solve complex challenges – including marketing transformation. They advise large enterprises, global brands, and legacy companies looking to modernize how they engage customers.

Their strength lies in combining deep analytics with business strategy, helping clients improve marketing ROI, customer segmentation, and personalization at scale.

McKinsey is trusted by some of the most recognized brands worldwide for high-level, strategic marketing guidance.

Main Services

• Marketing & Sales Consulting
• Customer Segmentation
• Personalization & Customer Journeys
• Brand Strategy
• Growth & Pricing Strategy

Headquarters

New York, NY, USA (Global offices)

Team Size

Over 30,000 (including marketing consultants)

Notable Clients

Confidential (Fortune 500 brands across industries)

5. Boston Consulting Group (BCG)

Description

Boston Consulting Group is a global strategy firm that helps brands reshape their marketing through innovation, data, and digital transformation. They work with Fortune 500 companies and industry leaders to modernize their go-to-market strategies.

What makes BCG stand out is their ability to connect brand strategy with business performance, helping clients unlock new growth through customer insights, digital tools, and creative execution.

They’re known for solving complex marketing challenges across industries like tech, consumer goods, healthcare, and financial services.

Main Services

• Brand & Marketing Strategy
• Digital Transformation
• Customer Insights & Analytics
• Growth & Pricing Strategy
• MarTech Consulting

Headquarters

Boston, MA, USA (Global offices)

Team Size

Over 25,000

Notable Clients

Confidential (Global Fortune 500 companies)

6. Bain & Company

Description

Bain & Company is a global consulting firm that helps brands develop smarter marketing strategies that drive business growth. They work with large enterprises and multinational corporations across sectors like retail, finance, tech, and healthcare.

Bain stands out for its focus on customer-centric growth – helping companies better understand their audiences, optimize marketing spend, and personalize engagement across channels.

Their marketing consulting work is backed by rigorous data analysis and deep business insight, making them a top choice for long-term strategy and transformation.

Main Services

• Brand & Marketing Strategy
• Customer Experience (CX)
• Personalization & Targeting
• Commercial Excellence
• Digital Transformation

Headquarters

Boston, MA, USA (Global offices)

Team Size

Over 15,000

Notable Clients

Confidential (serves major global brands across multiple sectors)

7. Prophet

Description

Prophet is a global consulting firm that helps companies drive growth through brand, marketing, and customer experience strategy. They work with mid-sized businesses, enterprise brands, and digital disruptors across healthcare, finance, tech, and consumer industries.

What sets Prophet apart is their ability to combine brand thinking with data-driven execution, guiding clients through repositioning, customer transformation, and marketing innovation.

They’ve helped hundreds of companies find new opportunities for growth by aligning brand purpose, marketing strategy, and customer expectations.

Main Services

• Brand & Marketing Strategy
• Customer Experience (CX)
• Demand Generation
• Organizational Design for Marketing Teams
• Innovation & Growth Strategy

Headquarters

San Francisco, CA, USA (Global offices)

Team Size

500+

Notable Clients

T-Mobile, Electrolux, GE, AbbVie

8. Ogilvy Consulting

Description

Ogilvy Consulting is the strategy and innovation division of Ogilvy, helping brands solve high-level marketing and business challenges. They work with global brands, government agencies, and large enterprises across sectors like health, finance, tech, and consumer goods.

Their strength lies in combining brand strategy with behavioral science, helping companies build meaningful customer relationships, launch new ventures, and adapt to digital change.

Backed by Ogilvy’s creative network, Ogilvy Consulting delivers strategies that are both commercially sound and creatively inspiring.

Main Services

• Brand Positioning & Strategy
• Behavioral Science Consulting
• Marketing Transformation
• Innovation & New Business Models
• Customer Engagement Strategy

Headquarters

New York, NY, USA (Global offices)

Team Size

1,000+

Notable Clients

Nestlé, IBM, Unilever, World Health Organization

9. Siegel+Gale

Description

Siegel+Gale is a strategic branding and marketing consultancy that helps companies simplify complex brand challenges. They work with global enterprises, B2B firms, and fast-growing tech companies looking to clarify their message and connect with audiences more effectively.

Their signature strength is brand simplification – cutting through noise with clear, consistent, and human messaging that resonates across every channel.

With a focus on research, strategy, and storytelling, Siegel+Gale helps clients build brands that are both powerful and easy to understand.

Main Services

• Brand Strategy & Positioning
• Messaging & Naming
• Visual Identity & Design Systems
• Customer Experience Strategy
• Marketing Enablement & Internal Alignment

Headquarters

New York, NY, USA (Global offices)

Team Size

200+

Notable Clients

SAP, American Express, CVS Health, Google

10. Simon-Kucher & Partners

Description

Simon-Kucher & Partners is a global consulting firm specializing in pricing, marketing, and sales optimization. They help B2B companies, SaaS providers, and consumer brands grow revenue by improving pricing models, product positioning, and customer acquisition strategies.

Their marketing consulting work focuses on turning strategy into measurable revenue, with a strong emphasis on data, behavioral economics, and clear value communication.

Simon-Kucher is widely recognized for its ability to unlock growth through smarter marketing and monetization.

Main Services

• Marketing & Growth Strategy
• Product Positioning & Value Proposition
• Go-to-Market Strategy
• Pricing Strategy & Optimization
• Sales Enablement & Commercial Excellence

Headquarters

Bonn, Germany (Global offices)

Team Size

2,000+

Notable Clients

PayPal, Microsoft, Lufthansa, McDonald’s

11. Slalom Consulting

Description

Slalom Consulting is a business and technology consulting firm that helps companies accelerate growth through strategy, digital transformation, and customer experience. They work with mid-sized to enterprise-level clients across industries like healthcare, retail, tech, and finance.

What makes Slalom unique is their blend of marketing, data, and cloud expertise, helping brands improve customer engagement and make smarter, faster decisions.

They’re known for their local team model and deep partnerships with tech platforms like Salesforce, Google, and Adobe.

Main Services

• Marketing Strategy & Planning
• CRM & Marketing Automation
• Customer Experience Design
• Data & Analytics
• Digital Transformation Consulting

Headquarters

Seattle, WA, USA (Offices across North America and Europe)

Team Size

12,000+

Notable Clients

Nordstrom, T-Mobile, Kaiser Permanente, MGM Resorts

12. Blue State

Description

Blue State is a marketing and strategy consultancy that helps mission-driven organizations grow their impact through digital campaigns, storytelling, and audience engagement. They work with nonprofits, advocacy groups, government agencies, and socially conscious brands.

What sets them apart is their ability to connect data, creativity, and cause, delivering campaigns that inspire action and long-term loyalty.

They’re known for helping organizations align their marketing with their values, while still meeting aggressive growth and fundraising goals.

Main Services

• Digital Strategy & Campaigns
• Content & Messaging Development
• Fundraising & Donor Engagement
• Audience Research & Insights
• UX & Experience Design

Headquarters

New York, NY, USA (Offices in London, Oakland, and Washington D.C.)

Team Size

100+

Notable Clients

UNICEF, Google, ACLU, Obama Foundation

13. Firewood (Media.Monks)

Description

Firewood is a full-service marketing consultancy known for embedding closely with client teams to deliver strategic and creative support. Now part of Media.Monks, they serve tech companies, startups, and global brands looking for agile, integrated marketing execution.

Their strength lies in offering in-house feel with agency expertise, combining content, design, strategy, and operations for high-growth teams.

Firewood is especially popular among fast-paced companies that need flexible, scalable marketing support without sacrificing quality or speed.

Main Services

• Content & Campaign Strategy
• Digital Marketing Execution
• Creative Production•
• Marketing Operations & Project Management
• Brand & Messaging Strategy

Headquarters

San Francisco, CA, USA (Global Media.Monks network)

Team Size

600+ (prior to acquisition)

Notable Clients

Google, LinkedIn, VMware, Salesforce

14. Code and Theory

Description

Code and Theory is a digital strategy and marketing consultancy that helps brands adapt to the modern digital landscape through design, content, and technology. They work with media companies, financial services, lifestyle brands, and institutions looking to future-proof their marketing.

They stand out for blending creative design with strategic consulting, helping clients rethink everything from content workflows to digital products and marketing systems.

Their focus is on creating adaptive experiences that are both brand-driven and performance-optimized.

Main Services

• Marketing & Digital Strategy
• UX/UI & Product Design
• Content Operations & Systems
• Brand & Experience Design
• Data & Performance Analytics

Headquarters

New York, NY, USA (Global offices)

Team Size

500+

Notable Clients

CNN, J.P. Morgan, Amazon, Adidas

15. Wpromote Strategy Group

Description

Wpromote Strategy Group offers marketing consulting services focused on helping brands unlock smarter, faster growth through omnichannel planning and data-driven decision-making. They partner with mid-market and enterprise companies looking to improve marketing performance and cross-channel integration.

What sets them apart is their ability to bridge performance marketing with long-term strategy, helping brands align media, measurement, creative, and customer experience.

Backed by Wpromote’s execution teams, their consultants deliver plans that are built for real-world results – not just slides.

Main Services

• Omnichannel Marketing Strategy
• Customer Journey & Lifecycle Mapping
• Performance Measurement & Forecasting
• Marketing Org Design & Roadmaps
• Brand + Growth Integration Strategy

Headquarters

El Segundo, CA, USA (National offices)

Team Size

50+ (Strategy Group within Wpromote’s 500+ team)

Notable Clients

TransUnion, Whirlpool, QuickBooks, Zenni Optical

16. Firstborn

Description

Firstborn is a digital strategy and innovation consultancy that helps brands rethink their marketing through technology, storytelling, and experience design. They work with consumer brands, luxury companies, and global enterprises that want to stay ahead of digital trends.

Their strength lies in building brand-first digital ecosystems, combining high-end creative with practical strategy and development expertise.

Firstborn is known for creating immersive experiences that push creative boundaries while staying aligned with marketing goals.

Main Services

• Digital Strategy & Innovation
• Brand Experience Design
• Content & Campaign Strategy
• Website & App Development
• Creative Technology & Production

Headquarters

New York, NY, USA

Team Size

50+

Notable Clients

PepsiCo, Supergoop!, Audible, Patrón

17. Mighty & True

Description

Mighty & True is a B2B marketing consultancy that helps tech companies streamline and scale their marketing with automation, creative strategy, and demand generation. They work with growth-stage SaaS brands and enterprise B2B teams that need smarter marketing systems, not more overhead.

What makes them unique is their focus on “always-on” marketing design, delivering repeatable, scalable programs backed by clear process and results.

They’re a go-to for companies looking to modernize marketing operations while staying aligned with brand and sales goals.

Main Services

• B2B Marketing Strategy
• Creative Systems for Campaigns
• Demand Generation
• Content & Messaging Frameworks
• Marketing Automation & Ops

Headquarters

Austin, TX, USA (Remote-friendly)

Team Size

10–20

Notable Clients

Akamai, Adobe, Sonatype, HackerRank

18. R/GA Consulting

Description

R/GA Consulting is a brand and business innovation consultancy that helps companies adapt and grow through marketing transformation and customer experience strategy. They work with enterprise brands, digital disruptors, and Fortune 500 companies across multiple industries.

Their edge lies in combining design thinking with business strategy, helping brands evolve their marketing capabilities, build internal teams, and launch new ventures.

As part of the R/GA network, their work is grounded in creativity, but always tied to measurable business outcomes.

Main Services

• Brand Strategy & Positioning
• Customer Experience & Service Design
• Innovation & Product Strategy
• Marketing Transformation
• Org Design & Capability Building

Headquarters

New York, NY, USA (Global offices)

Team Size

1,000+ (Consulting division within R/GA)

Notable Clients

Nike, Samsung, Verizon, Google

Final Thoughts on Marketing Consulting Firms

The best marketing consulting firm for your business depends on where you’re headed – and how fast you want to get there.

From high-growth startups to Fortune 500 giants, the firms in this guide have helped teams unlock new revenue, sharpen their positioning, and build systems that scale. Some offer full-funnel marketing transformation. Others specialize in one thing and do it exceptionally well.

Take your time to explore, ask questions, and start conversations. Because when you find the right partner, it’s not just a strategy shift – it’s a growth multiplier.

Explore More Agencies

• Video production agencies
• Social media marketing agencies
• Explainer marketing agencies