Gravity Speakers, LLC (“Company”,“We”, or Us”), respects your privacy and is committed to protecting it through compliance with this policy.
This policy describes the types of information we may collect from you or that you may provide when you visit the website www.gravityspeakers.com (“Website”) and our practices for collecting, using, maintaining, protecting, and disclosing that information. Company is the data controller for information processed through the Website.
Please read this policy carefully to understand our policies and practices regarding your information and how we will treat it. If you do not agree with our policies and practices, your choice is not to use our Website. By accessing or using this Website, you agree to this privacy policy. This policy may change from time to time (see Changes to Our Privacy Policy). Your continued use of this Website after we make changes is deemed to be acceptance of those changes, so please check the policy periodically for updates.
Our Website is not intended for nor targeted towards children as defined by applicable law. We do not knowingly collect personal information from children. If you are younger than the age of consent in your jurisdiction, do not use or provide any information on this Website or on or through any of its features or provide any information about yourself to us, including your name, address, telephone number, email address, or any screen name or user name you may use. If you believe we might have any information from or about a child under the applicable age of consent, please contact us at Privacy@gravityspeakers.com and we will delete it.
For more information, see International Data Transfers
When you use the Website and provide information to Company through the Website, your information may be transferred to a destination outside your jurisdiction, including to the United States. The United States has not received a finding of “adequacy” from the European Union under Article 45 of the GDPR. Company has executed agreements between its affiliates and subsidiaries in accordance with Article 46 of the GDPR. Company also relies on derogations for specific situations set forth in Article 49 of the GDPR in order to transfer personal information across international borders outside of Company, its affiliates, and subsidiaries. In particular, Company transfers personal information across international borders only: with your consent; to perform a contract with you; or to fulfill a compelling legitimate interest of Company in a manner that does not outweigh your rights and freedoms.
Choices About How We Use and Disclose Your Information.
We may disclose aggregated anonymized information about our users without restriction.
When you use the Website and provide information to Company through the Website, your information may be transferred to a destination outside your jurisdiction, including to the United States. The United States has not received a finding of “adequacy” from the European Union under Article 45 of the GDPR. Company has executed agreements between its affiliates and subsidiaries in accordance with Article 46 of the GDPR. Company also relies on derogations for specific situations set forth in Article 49 of the GDPR in order to transfer personal information across international borders outside of Company, its affiliates, and subsidiaries. In particular, Company transfers personal information across international borders only: with your consent; to perform a contract with you; or to fulfill a compelling legitimate interest of Company in a manner that does not outweigh your rights and freedoms.
We do not control third parties’ collection or use of your information to serve interest-based advertising. However, these third parties may provide you with ways to choose not to have your information collected or used in this way. You can opt out of receiving targeted ads from members of the Network Advertising Initiative (“NAI”) on the NAI’s website: https://www.networkadvertising.org/.
To the extent required by law, Company provides you with (i) reasonable access to the personal information collected through the Website, and (ii) the ability to review, correct, export, and delete such personal information. Please contact us using any of the methods identified in the “Contact Information” section if you would like to exercise your individual rights and for information on any fee required to obtain copies of your personal information. We may need to obtain or confirm certain personal information in order to accommodate your request. We will not accommodate a request to change information if we believe the change would violate any law or legal requirement or cause the information to be incorrect.
California Civil Code Section § 1798.83 permits users of our Website that are California residents to request certain information regarding our disclosure of personal information to third parties for their direct marketing purposes. To make such a request, please send an email to Privacy@gravityspeakers.com or write us at: 570 El Camino Real, #150-250, Redwood City, CA 94063, Attn: General Counsel.
We use commercially reasonable measures to secure information collected through the Website. Unfortunately, the transmission of information via the internet is not completely secure. Although we do our best to protect your personal information, we cannot guarantee the security of your personal information transmitted to our Website. Any transmission of personal information is at your own risk. We are not responsible for circumvention of any privacy settings or security measures contained on the Website.
We retain your information for as long as needed: (i) to conduct business with you; (ii) as needed for the purposes outlined in this Privacy Policy; (iii) as necessary to comply with our legal obligations, resolve disputes, and enforce any agreements.
It is our policy to post any changes we make to our privacy policy on this page with a notice that the privacy policy has been updated on the Website home page. If we make material changes to how we treat our users’ personal information, we will notify you by email to the email address provided by you or through a notice on the Website home page. The date the privacy policy was last revised is identified at the top of the page. You are responsible for ensuring we have an up-to-date active and deliverable email address for you, and for periodically visiting our Website and this privacy policy to check for any changes.
To ask questions or comment about this privacy policy and our privacy practices, contact us at:
570 El Camino Real, #150-250, Redwood City, CA 94063, Attn: General Counsel
Email: Privacy@gravityspeakers.com
European Union: Company’s Data Protection Officer is Nausheen Razzak, and can be contacted using the information above. You can request copies of Company’s GDPR Article 46 agreements from the Data Protection Officer. Please contact the Data Protection Officer if you believe Company has processed your information in a manner inconsistent with your privacy rights. You also have the right to contact a supervisory authority if you believe Company has processed your information in a manner inconsistent with your privacy rights.

Adam Cheyer is a top technology speaker, AI expert, and entrepreneur. He co-founded Siri, which was acquired by Apple, and later co-founded Viv, which became the basis of the voice assistant Bixby on Samsung phones, TVs, watches, and more. He is also a founding member and first developer at Change.org, the world’s largest petition platform, with more than 300M members.

As a magician and New York Times crossword puzzle constructor, David Kwong has delighted and confounded audiences worldwide. A TED Talk favorite, Kwong regularly speaks to companies and demonstrates the principles of illusion and the science of why your brain is fooled.
Kwong was the head magic consultant for the worldwide hit Now You See Me. His new Netflix show The Puzzle Room premieres May 11th, 2026. His one-man show, The Enigmatist, has sold out runs in New York, Los Angeles, Chicago and the Kennedy Center in Washington, DC. His interactive puzzle show, Inside the Box, garnered a Critic’s Pick from the New York Times.
David has spoken to and performed for hundreds of companies with his entertaining and enlightening talks on the principles of illusion, influence, command, and the science of getting a step ahead. He also designs custom team-building puzzle events.
Drawing from his book, Spellbound: Seven Principles of Illusion to Captivate Audiences and Unlock the Secrets of Success, David regularly speaks to companies about how to bridge the gap between perception and reality, and to increase your powers of persuasion and influence.

Tim Sanders is the Chief Innovation Officer at G2, where he analyzes data to reveal market and AI trends for business leaders. As an Executive Fellow at Harvard Business School’s Digital Data Design Institute, he helps translate AI research into real-world strategy. Previously, he led client strategy at Upwork and served as Chief Solutions Officer at Yahoo after joining Mark Cuban’s broadcast.com in its early stage. With 25+ years in innovation and change leadership, Tim is also a bestselling author and keynote speaker on AI, digital transformation, and collaboration.

Prashanth Challa is a cybersecurity expert and keynote speaker specializing in risk analysis, emerging threats, and digital disruption. A senior cybersecurity leader at Morgan Stanley, he protects financial clients from advanced cyber threats. He began his career at the National Security Agency, leading teams in vulnerability research, reverse engineering, and cybersecurity tool development. He later served as Head of Cybersecurity at a big data and AI startup. With degrees in Theoretical Mathematics and Computer Engineering from Johns Hopkins University, Prashanth brings deep technical expertise and practical insight to protecting critical systems.

Over 25 years ago, Dave Davlin began bringing smiles to faces with a form of entertainment he developed as a young boy. His amazing ability with basketballs even landed his name and picture in the 1990 Guinness Book of World Records. Combining his entertainment ability with a powerful message regarding success through contribution and service, Dave has made a difference in the lives of thousands, and his impact continues to grow each year as he shares his philosophy and wisdom through speaking and writing.
Request Fee & AvailabilityDomestic In-Person (USA):
Up to $25,000
International In-Person:
Please inquire
Virtual:
Up to $15,000
Other:
* Ranges are presented as a guideline only. Speaker fees vary by engagement type and are subject to change without notice. For an exact quote, please contact Gravity Speakers.
Washington, USA
Dona Sarkar is the keynote speaker Fortune 500 leaders book when they’re done with AI drama and ready to actually do the thing. A longtime Microsoft engineering leader, fashion business owner, wine bar co-owner, four-time author, and full-time Chief Troublemaker, she’s spent over 20 years on stage—delivering 200+ keynotes to audiences of 30,000 in person and 2 million virtually—turning the future of work into a system.
Her signature “100 Bad Ideas” framework helps teams trade AI chaos for 25 real AI wins a year. Funny, irreverent, and relentlessly practical, Dona helps leaders adopt AI, drive innovation, and banish imposter syndrome—because success isn’t magic. It’s math.
"If you’re looking for a speaker who’s 100% authentic, not afraid to engage in uncomfortable but highly necessary #RealTalk to get your audience thinking, Dona Sarkar is your answer. A powerhouse of a speaker, Dona always comes prepared with fresh ideas and actionable plans (read: homework!) to continue investing in themselves long after the event is over. Get ready to be volunTOLD, get out of your comfort zone, and discover how you can become a better human."
"When Dona Sarkar speaks, something exceptional happens. She is a passionate presenter and changemaker who is making a remarkable impression globally. Single-handed, Dona is lifting up Everyone in the room and instilling in them the belief that they can and will do more. Her brave, no-nonsense approach is infectious and making a world of difference."
"As an Olympic athlete, I've listened to many motivational speakers. It's sometimes hard to find talks that really hit home specifically to me. Dona's presence in person and on stage grabbed me immediately. I knew she was someone I wanted to emulate and was further inspired after hearing her TEDxtalk about the Imposter Syndrome. She was engaging, relaxed and so genuine. Anyone who has taken a risk in life towards success can relate to her message of feeling like you don't belong or are not worthy. She uses her own successful career and personal experiences to illustrate how to combat these feelings and find power on the other side of it.
Every employee, college student, entrepreneur and athlete will be faced with Imposter Syndrome at some point in their lives, Dona Sarkar's message will prepare, normalize and inspire to conquer these feelings and teach them how to OWN their success!"
"Dona Sarkar is one of our favorite speakers! She is a dynamic and engaging speaker who captivates audiences with her sharp wit,intelligence, and insightful perspectives. Her keynotes and fireside conversations are both humorous and thought-provoking, makingcomplex ideas accessible and inspiring actionable change."