Over the last five years, I have helped numerous start-ups launch and scale their growth engines. Most recently, I helped to build the growth engines for a B2B startup (millions in pipeline generated) and a B2C startup (1,000% YoY engagement growth). In short, I love helping startups acquire, activate, and retain customers. 

I look forward to applying what I’ve learned to help you drive quantifiable results.

What I Will Bring To Your Company

Company Builder Approach

  • I am not looking for a day job. Heck, if I were, I would have accepted one of the recent job offers I’ve received. Instead, I’m seeking to help really grow a company I believe in. I’m seeking to work hard alongside of people that I know are the best at what they do. I’m looking to make a difference in people’s lives and have fun along the way.

‚ÄčGrowth Hacker Mentality

  • I’m creative—I love figuring out unique and powerful ways to solve tough problems.  

  • I’m data driven—I hypothesize, test, and track everything and use the data from my experiments to drive future decisions in an effort to maximize ROI.

  • I’m scrappy—I pride myself on my ability to figure out how to get things done regardless of the roadblocks before me, such as limited resources.

  • I’m intellectually curious—I am always learning new skills, tactics, and tricks via books, blogs, podcasts, and courses as well as by talking with experts. 

I’d love to chat with you this week to answer any questions you may have. Fill out the form to the right to get the conversation started!

Dan Kuthy
Head of Growth at Toptal

Dan Kuthy, Head of Growth, Toptal

Professional Bio

William Griggs is a product manager and customer acquisition strategist who has helped numerous start-ups grow, including companies backed by Andreessen Horowitz, FLOODGATE, and 500 Startups, launch and scale their growth engines.


  • Helped an Andreessen Horowitz-backed start-up boost its quality leads (12%), landing page conversion (20.5%), and daily blog subscribers (500%), resulting in revenue growth of 34%.

  • Developed the strategy that helped finserv client win “Best in Show” at Finovate Spring in San Francisco.

  • Launched a start-up podcast featuring 70+ guests, including living legends Steve Blank and Brad Feld. Episodes of the podcast have been downloaded over 100,000 times in over 25 countries.

  • Executed Google AdWords arbitrage strategy for client that generated over $100k in revenue in one month.

  • Secured product and marketing strategy guest posts on Mashable, ReadWrite, VentureBeat, and Under30CEO that have been shared over 6,000 times on social media.

  • Led content strategy to seed client’s site with relevant content. In the process, I hired and managed over 30 freelance writers and crafted over 700 articles.

Professional Accomplishments

Don't Take My Word for It

"I had a great time working with William and recommend him to any company looking to add a creative, product-minded marketer to their team. He's very strategic, well-rounded and versatile. He knows at least something about almost every aspect of customer acquisition and product management and is quick to identify smart solutions to challenging problems. William's initiative and cleverness allow him to figure his way through any problem he encounters."

"Not only does William have the business know how, product feel, and creativity to devise powerful strategies to hit any growth goal you may have, he has the follow through and tactical skills to see them through execution and analysis. William also stays in the know about any new development which make him a great team member. In short, he’s really good at what he does and fun person to work with. Some of his Growth ideas are the kind of stuff you will not hear anywhere else."

Omar Sefian, Marketing Manager at Plentyoffish.com

Omar Sefian
Marketing Manager at Plentyoffish.com

See what some of my past clients and colleagues have to say...

Here's a taste of what I will contribute...

More About William 

Talk Is Cheap

Instead of telling you what I can do, I wanted to begin to show you...

  • A/B Testing—I’m A/B testing this very landing page. I have a lot of experience devising hypotheses and executing A/B tests. Typically, I use tools such as Optimizely to decrease the time and development resources necessary for launching each test.

  • Manage Paid Spend—You likely landed on this page because you or someone you know saw an ad on Twitter. In addition to managing spend on Twitter, I have extensive experience with AdWords, Facebook, LinkedIn, and Retargeting (Display, Facebook, and Twitter).

  • Copywriting—I wrote every word you see here—minus the testimonials, of course. :)

  • HTML, CSS, and JS—I leveraged all three technologies to create the landing page you are looking at now.

  • Google Analytics—It’s installed on this page, and I will be reviewing the data later to inform future tests. 


In addition to everything tech start-ups, William loves breakfast tacos, dogs, short e-mails, and Amazon Prime. He currently resides in Austin, Texas, with his beautiful wife, Elizabeth.


Two Truths and a Lie

  • William almost died at Disney World.

  • William taught Chamillionaire how he should use Twitter.

  • William's favorite actress is Whoopi Goldberg.


Personal Bio

Party William :)

Connect With William

William's Favorites

As much as I love Sister Act, Whoopi is not my favorite actress. My favorite actress is Rachel McAdams.


  • Favorite Podcast: This Week In Startups

  • Favorite Book: Mastery by Robert Greene

  • Favorite Movie: Jurrasic Park

  • Favorite City: San Francisco (duh)

  • Favorite Food: All of it


"If he puts this much effort into winning you over, imagine what he'd accomplish for your startup." -- William's Mother


In 3rd person...

Set Up A Time To Talk With William!

Want to learn more?

"He (William) knows his stuff, and he's great at delivering results." -- Corey Cleek, CEO at Uloop

Need help growing your startup?

Let's Do This!

Setup A FREE Powwow

Let’s hop on a quick call to discuss where you are with your growth engine and to brainstorm ideas to test. 

"if you are in the process of launching a start-up and you are looking for help acquiring customers (marketing, PR, social media, etc.), talk to William." 

Andrew Bouldin, VC at FCA Ventures

Andrew Bouldin
VC at FCA Partners


Kickoff Call

Weekly Group Q&A

Monthly 1:1 Strategy Calls

Quarterly Planning Session

Access To Premium Content

Choose a plan that suits you

Get started now and I will perform an 18 point startup growth review for free ($299 value) as a signup bonus.

After signing up, you will receive an email to schedule your kickoff call. 


3 Month Minimum

$499 Per Month

Get Started

Kickoff Call

Weekly Group Q&A

Monthly 1:1 Strategy Calls

Quarterly Planning Session

Access To Premium Content

$299 Per Month

3 Month Minimum

Get Started
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