It's great to hear about your experience and the growth you've been a part of at your tech startup. It seems like you've developed a strong skill set and have gained valuable exposure in commercial operations and strategy.
Considering your motivations for exploring new career options, consulting could indeed be a great fit for you. It offers the opportunity to broaden your horizons, gain exposure to different industries and business challenges, and benefit from the structure and formal development that consulting firms provide.
Your experience in a fast-paced startup environment, agility, adaptability, and commercial acumen are all valuable assets that would be highly sought after in the consulting industry. Additionally, your understanding of the industry you serve and your involvement in decision-making processes would be valuable in helping clients navigate their own challenges.
In my experience in both consulting and tech, I think a good middle ground for you could be to go a digital practice e.g. McKinsey Digital / BCG Digital Ventures. You'll get the best of both worlds there, and could then pull a lateral move into traditional consulting if you wanted to.