We are voice technology experts.

Whetstone Technologies helps brands monetize voice assistants with our patent-pending SoniBridge platform.  We design, develop and host voice-first, multi-experiences for Amazon Alexa, Google Assistant, etc. 


SoniBridge integrates with your supporting marketing and customer systems to provide immediate offer fulfillment via text.  No keyboard required!

Person usinga voice assitant on their cell phone an then receiving a offer via text message

People talk to their smart phones, smart speakers,

smart vehicles, smart appliances, and smart TVs using voice technology such as Alexa or Google Assistant.

But what happens next?  

How do you generate revenue from voice-first experiences?

Work with Whetstone Technologies.  We know how.

Brands using our patent-pending SoniBridge platform interact with customers across multiple voice assistants and various devices.  On SoniBridge, your conversational interfaces can include graphics, video, music, and touch screen prompts enabling consumers to opt-in to receive text messages with

  • coupons

  • incentive offers

  • web site links

  • videos / music

  • instructions

  • whitepapers 

Brands on the SoniBridge platform get measurable, attributable results from their voice-first experiences.

We are integrators.

We integrate voice technology with your existing Content Management, CRM/CDP and eCommerce systems, making it easy to manage your portfolio of voice-first experiences.


We help you develop a relevant multi-experience strategy aligned with your business goals and integrated into your marketing plans to maximize ROI / ROAS on voice-first customer engagement.

SoniBridge Voice Technology Platform
We are VUX portfolio managers.

Voice-first user experiences (VUX) come in all shapes and sizes - from a brief, event-driven interaction to longer-life infotainment engagement - or periodic conversations.

We've assembled a team of cross-functional design, development and systems management professionals with voice technology experience. 


The enterprise-grade SoniBridge platform enables you to optimally and effectively manage a portfolio of voice-first experiences while integrating with supporting systems. 

Work with Whetstone.  We know how.

SoniBridge Voice Technology Portfolio Management
We are certified. 

We've earned the certifications and the trust of the voice technology industry:

  • Amazon Alexa & AWS certified

  • Google Assistant Developers

  • Samsung Bixby Premier Developers

Sanjeev Surati, CEO, Whetstone Technologis



The visionary leading a diverse group of talented and experienced people focused on a fun and memorable customer experience

Sanjeev Surati, Certified Alexa Skill Builder
About Us

Our Story

Co-founders Sanj & John are Microsoft veterans.  They have worked on projects for major clients in various industries.  They're also filmakers.  How cool is that? 


They began developing voice apps in 2017 and were selected for Batch2 of the 2018 Playlabs@MIT startup incubator/accelerator program.   

John Iwasz, CTO, Whetstone Technologies



Architecting the future of voice interactions using decades of experience in several industries.

John Iwasz, Certified Alexa Skill Buider in Philadelphia
John Iwasz, AWS Associate Architect Certification

The Team

Sanj & John have selected management team members who bring a balanced set of skills and 

valuable experience to Whetstone Technologies.


Headquartered near Philadelphia, PA, USA 

with remote distributed teams in Boston, MA and Seattle, WA.  

Phone:  610.345.7384


to us

  • Whetstone Technologies LinkedIn
  • Whetstone Technologies Twitter Page
  • Philadelphia Voice Developers

Philadelphia VUX Designers &  Developers Group

Philly VUX Group Meetu

Philadelphia VUX Designers &  Developers Group

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