Client List

We’re proud to have worked with companies of all shapes and sizes.

  • keybank
  • target-logo
  • pacific
  • moana
  • sutter
  • santa
  • roseryan
  • nike
  • monster
  • verdedesign
  • sap
  • hp
  • plumpjack
  • malelogic
  • silkroad
  • bayarea
  • cgjung
  • tellason
  • piatti
  • paragon
  • learnit_web_logo_ygtp
  • laredo-oil
  • aqua
  • bc_logo_reg
  • yoga-journal

Technology Partners

Our Partners

We’ve built strong partnerships with leading technology companies including:

  • gpartner
  • square-inc
  • BigCommerce
  • salesforce

Our Work

Our Services

Mobile Optimization

Make sure you look your
best on every screen

Web Development

Time for a refresh?
Soup to nuts solutions
for world-class websites

Email Marketing

Cut through the clutter. Email marketing solutions that work

Search Engine Marketing

You built your brand, now make sure people find it.

Be Social

Social marketing is here to stay, do you have the right plan?

Paid Search

Make sure every dollar is spent wisely and efficiently.

Website Maintenance

Keep your website up to date and looking great!


Gain clarity and understanding of efforts

Our Team

David Weinfeld

Talented, energetic, capable...
David brings a unique combination of engineering and web-based marketing experience to his clients.

He founded Third Arm Marketing in 2004 and has spent the last twelve years helping companies develop and implement impactful marketing strategies and solutions.

Working alongside marketing and leadership teams for large companies such as KeyBank, Yoga Journal and Sutter Health as well as smaller companies, he drives web-based marketing outcomes that enable consistent growth across clients of all sizes.

Prior to starting Third Arm Marketing, David was instrumental in growing several leading dotcom companies, including; Monster Worldwide, ClipShow Inc. and
Read full bio on Linkedin

Habib Nawaz

Lead UI designer/developer, creative, enthusiastic...
Habib brings over 8 years experience in UI coding/design, PHP, Javascript & JQuery and is the solid backbone in many of our projects. His ability to implement complex design documents into functioning websites keeps us one step ahead of the competition and 5 steps ahead of schedule. Habib has his hand in almost all successful websites we complete and is a valued asset to our team.

Habib creates responsive Wordpress themes, Bigcommerce templates and awesome websites which look perfect on mobiles, tablets, retina display, laptops & large screens and also compatible with all major browsers used today.

Specialties – UI coding, web & UI design, UX, user centered design, mockups, wireframes, interactive design, visual hierarchy and SEO.



Kim Weiss – Corporate Strategy

CEO, Chamba

Experienced leader, effective entrepreneur, creative and inspiring team builder with financial management skills.
Full bio on LinkedIn


DeeDee Taft – Public Relations

Owner, Spin Communications

Extensive experience in media relations, community relations, promotions, crisis management, acting as a spokesperson, new product launches, multiple city tours and more.
Full bio on LinkedIn


Lisha Driscoll – Project Management

Program Manager, Wealth Management

Hands-on project manager specializing in large-scale business and technology initiatives.
Full bio on LinkedIn


Erik Petersen – Advertising & Branding

Managing Director, Gyro

An award winning marketing leader with global advertising, branding and business management experience.
Full bio on LinkedIn

contact us

David Weinfeld

Phone: (415) 602-2547
Mill Valley, CA 94941