This article presents the top growth marketing experts of 2025. We began our study from a total sample size of ~40 experts from various marketing backgrounds which we compared on the basis of their work history, marketing experience, social media influence, and whether or not they maintain an active blog where they share their insights. We then selected the top 8, and presented them in the table below.
In addition to our criteria, we also provide information on their specialty as well as their availability for consulting services for each expert. Below the table, we provide a more detailed description of each expert and their growth marketing expertise.
The Top Growth Marketing Experts: 2025 Report
| Rank | Expert | Length of Time in Marketing | Social Media Followers | Active Growth Marketing Blog? | Available for Consulting? | Specialty |
| 1 | Evan Bailyn | 18 years | ~149,000 | Yes | Yes | Content-first growth marketing strategies that prioritize sustainable, long-term lead generation. |
| 2 | Brian Balfour | 18 years | ~54,000 | Yes | Yes | Growth marketing training for startup marketing teams |
| 3 | Ann Handley | 28 years | ~478,000 | Yes | No | Public speaking engagements focused on growth marketing |
| 4 | Dan Siepen | 12 years | N/A | Yes | Yes | Growth marketing for startups and ecommerce companies under $5M ARR |
| 5 | Mayur Gupta | 20 years | ~70,000 | No | No | LinkedIn posts covering growth strategies for multi-national tech brands. |
| 6 | Casey Winters | 20 years | ~50,000 | Yes | Yes | Advising tech startups on how to scale into mid-size or enterprise businesses |
| 7 | Jeff Chang | 9 years | ~5,000 | Yes | No | Growth marketing metrics and analysis for startups |
| 8 | Kim Garst | 15 years | ~25,000 | Yes | Yes | AI-based growth marketing coaching services |
Evan Bailyn
Evan Bailyn has been a proponent of growth marketing since its invention in the early 2010s. As one of the early inventors of SEO, his approach uses organic channels as the foundation for high-ROI strategies. Bailyn also emphasizes the importance of understanding audience psychology and creating high-quality, engaging content in order to drive engagement and conversion, valuing long-term growth over short-term hacks.
In addition to offering consulting services, Bailyn has continued to lead growth marketing conversations, having pioneered the nascent field of generative engine optimization in order to leverage the lead generating potential of AI search engines such as ChatGPT Search and Perplexity. An avid blogger and public speaker, he has made it his mission to educate business owners on the importance of investing in effective marketing strategy.
- Specialty: Content-first growth marketing strategies that prioritize sustainable, long-term lead generation.
- Length of Time in Marketing: 18 years
- Social Media Followers: ~149,000
- Active Growth Marketing Blog?: Yes
- Available for Consulting?: Yes
- Contact
| Summary of Online Reviews |
| Evan Bailyn is a “master of understanding how to create content that ranks #1,” providing clients with an “analysis you can do something with right now.” He speaks with “attention to detail, accuracy, and spot on critique,” providing clients with “unbelievable understanding, expertise, and deep experience.” |
Brian Balfour
Brian Balfour is the CEO of ReForge, a company that helps provide startups with the tools to rapidly expand their operations through an omnichannel approach. This provides the means to tailor strategies for clients based on the size and notoriety of the company as well as typical industry channels. In addition, his website provides several courses for DIY clients to educate themselves, learning the relevant skills on their own timetable.
A former Hubspot executive, Balfour’s experience in growth marketing is extensive. His meticulously updated growth marketing blog has gained him a substantial online following. Finally, Balfour also makes a point to provide a wide array of services to meet the needs of respective clients.
- Specialty: Growth marketing training for startup marketing teams
- Length of Time in Marketing: 18 years
- Social Media Followers: ~54,000
- Active Growth Marketing Blog?: Yes
- Available for Consulting?: Yes
- Contact
| Summary of Online Reviews |
| Brian Balfour is “the King of Growth for good reason,” providing clients with “deeply thoughtful” insights that reflect a “great sense for emerging market opportunities.” He is “incredibly creative” and “really in tune with the market.” |
Ann Handley
Ann Handley is a public speaker and noted author of several bestselling books, including Everybody Writes and Content Rules: How to Create Killer Blogs, Podcasts, Videos, Ebooks, Webinars (and More) that Engage Customers and Ignite Your Business. She is also the founder and CEO of MarketingProfs, a marketing training company dedicated to teaching the next generation of marketing specialists.
Handley has undoubtedly the largest online following of any expert on this list, with nearly half a million followers. She is unfortunately not available for consulting in 2025, but her three decades of experience in growth marketing make her a heavily sought after public speaker in the field.
- Specialty: Public speaking engagements focused on growth marketing
- Length of Time in Marketing: 28 years
- Social Media Followers: ~478,000
- Active Growth Marketing Blog?: Yes
- Available for Consulting?: No
- Contact
| Summary of Online Reviews |
| Ann Handley is “a total professional” and an “engaging and entertaining speaker.” Her speeches “left the audience wanting more” and “mingled with our attendees – that extra touch is something you can’t get from everyone.” |
Dan Siepen
Dan Siepen is a growth marketing expert and educator, providing subscribers and visitors with a wide variety of tools they can use to evaluate and improve their online performance, including marketing checklists for several verticals (e.g., Saas, eCommerce). He has been featured on several notable publications including HubSpot, Business Insider, and TNW.
As far as our team could find, Siepen is not active on any social media platform, leaving his website to do his marketing for him. He is one of the newer experts on this list with just over a decade of experience, but the quality of his blog suggests a great deal of expertise for smaller companies and startups seeking to expand their virtual presence.
- Specialty: Growth marketing for startups and ecommerce companies under $5M ARR
- Length of Time in Marketing: 12 years
- Social Media Followers: N/A
- Active Growth Marketing Blog?: Yes
- Available for Consulting?: Yes
- Contact
| Summary of Online Reviews |
| Dan Siepen provides clients with “exceptional work” that “has a material effect on many, many technology companies and individuals.” He is “in the top echelon of people I’ve worked alongside” and “always guides you to the best outcome.” |
Mayur Gupta
Mayur Gupta focuses on growth marketing via social media, specifically tailoring his strategies to the LinkedIn sphere. This makes him a good fit for B2B and B2C companies seeking to create high levels of engagement with prospective customers over a short period of time. In addition, the relatively low CAC of social media campaigns makes his expertise a great fit for small businesses and startups seeking to grow the company while maintaining a strict budget.
Gupta’s focus on social media somewhat limits the range of speaking opportunities he is best suited for (and he is unfortunately not available for consulting), but he remains an excellent speaker in his niche.
- Specialty: LinkedIn posts covering growth strategies for multi-national tech brands.
- Length of Time in Marketing: 20 years
- Social Media Followers: ~70,000
- Active Growth Marketing Blog?: No
- Available for Consulting?: No
- Contact
| Summary of Online Reviews |
| Mayur Gupta has “the rare ability to go deep on a specific tactical effort” to help clients “grow leaps and bounds” over their services. He is an “inspirational marketing leader.” |
Casey Winters
Casey Winters is a growth marketing expert that specializes in strategy development for omnichannel campaigns. For tech companies who are unsure of what they are looking for or who want to test out new market subsectors, his expertise has already served several notable clients (e.g., Grubhub, Pinterest, Eventbrite) exceptionally well.
Because of his expertise, Winters typically works with larger clients, helping them reach enterprise level operations. He has two decades experience in the field and provides public speaking services as well as consulting, making him an excellent choice for clients seeking an event speaker.
- Specialty: Advising tech startups on how to scale into mid-size or enterprise businesses
- Length of Time in Marketing: 20 years
- Social Media Followers: ~50,000
- Active Growth Marketing Blog?: Yes
- Available for Consulting?: Yes
- Contact
| Summary of Online Reviews |
| Casey Winters “moves[s] easily between roles and provides valuable insight from any number of perspectives.” His work is “energetic, detail-oriented” and he is “great at detailing what he wants, why he wants it, and how he wants to get there.” |
Jeff Chang
Jeff Chang specializes in growth marketing for startups, helping companies operating on shoestring budgets grow into respective industry names. His work focuses on growth marketing analytics, providing readers with in-depth overviews of how to evaluate a campaigns performance, as well as how to improve them based on respective marketing channel, vertical, and company size.
While Chang does not provide consulting services, his free blog is an educational resource in and of itself, providing clients with a host of data to work with. This makes him an excellent option for clients with an in-house team to handle the heavy lifting themselves.
- Specialty: Growth marketing metrics and analysis for startups
- Length of Time in Marketing: 9 years
- Social Media Followers: ~5,000
- Active Growth Marketing Blog?: Yes
- Available for Consulting?: No
- Contact
| Summary of Online Reviews |
| No data |
Kim Garst
Kim Garst’s specialty is in AI-based growth marketing services, effectively using generative engines like Perplexity and Google Gemini to efficiently identify target audiences, nurture relationships, and predict emerging topics within the client’s industry. She is a noted public speaker in the field and has been featured on Fox, Entrepreneur, and Forbes.
Garst has a great deal of experience in the field and a respectable online following. In addition to consulting work, she also provides public speaking and writing services for clients, making her an excellent addition to anyone seeking to target AI in their growth marketing strategy.
- Specialty: AI-based growth marketing coaching services
- Length of Time in Marketing: 15 years
- Social Media Followers: ~25,000
- Active Growth Marketing Blog?: Yes
- Available for Consulting?: Yes
- Contact
| Summary of Online Reviews |
| Kim Garst provides clients with “many different, creative ways to accomplish” their goals. She helps clients “build the systems and strategies [they] need to run a more efficient business” and clients consider her consulting services “pure gold.” |
