I just tried this. HOLY CRAP its good. How did you achieve this? I'm very impressed.

Also: Please don't evolve the UI. Its perfect as it is

As the founder of another product in this space - this is super impressive and well built. Great demo video and congrats on top of HN! Getting this smooth UX and data behind the scenes is not easy.

Wow -- tried it out and looks quite impressive. The granularity of data for these companies is amazing!

My last startup was selling to SMBs. It looks like Sumble is most likely targeted at mid-market and enterprise companies. Any plans to expand coverage into the long tail of smaller companies?

Sumble is one of my go-to data tools for GTM – great data quality and lots of interesting data points that are kind of a pain to find elsewhere.

I do find myself wanting to transform the data (especially the stuff in job descriptions) using an LLM, e.g. for scoring companies/contacts or looking for more subtle signals. Sometimes I do this manually but exporting a bunch of JDs from Sumble isn't possible AFAIK. Or doing it in Sumble would be great, too.

Awesome to see it on HN. Congrats on the launch!

This is incredibly useful and I can see myself using it and paying a subscription. That being said:

1. I couldn't find some key persons that I know works in an organization. How accurate is the data?

2. I don't know if this is happening because you are getting lots of traffic now, but each query takes 20-30 seconds which is unusable.

> - Is the web app intuitive?

Yes

> - What queries do you want us to prioritize supporting in an API?

Maybe specific but I want to filter by head count in job function (ie: find organizations that have 50-200 software engineers regardless of their total head count).

> - What additional external data sources would you like us to prioritize? - What workflow improvements/integrations would you find most helpful?

I don't really care as long as the data is as accurate as possible. The process of lead generation/research is a slow one that I don't think workflows matter.

Using this product.... big fan. Most important in our GTM stack for building account lists.

Sumble has been my critical tool to research the organization structure and responsibility in a large company, technology adoption like which organization has the LLM adoption.

Congrats on the launch!

Is there no way to add custom searches? As a test, I wanted to look for flight test engineers in aerospace companies, but the only way I could see to approximate it was to look at job postings. I was able to drill down by picking a company (Boeing) until I found one, but that's really tedious compared to just adding a custom job function ("flight test engineer") or selecting "Test Engineer" and adding a custom industry ("Aerospace").

There is so much signal in job posts - excited to see this launch.

Congratulations! Looks awesome. 1. I found it very intuitive. 2. If I could have smart filtering using llm classification, that would be very powerful. Any plans on doing that?

How does this tool differ from Apollo.io, Clay.com, and Promptloop?

Tools like Clay and Apollo are often misused for spammy cold outreach—which rarely works. The real value lies in enriching leads who’ve already shown interest, helping align marketing efforts with the right prospects. Beyond that, more data doesn’t always improve GTM decisions.

I'd love to hear(and learn) how others would want to use this tool specifically for GTM.

Looks like an amazing product. Been playing around with it for a few mins. The UI is quite buggy and jumps around a lot (Chrome, MacOS), and seems to auto-refresh on the organizations page, which makes curating lists impossible. What's a good way to keep providing feedback?

Super useful and intuitive product, love the granularity of the tech stack keywords, it does find relevant leads/companies that you couldn't find otherwise..

API could be helpful for enrichment of internal sources. MCP would also definitely make sense as well

Great work, and interesting to see Knowledge Graphs in a production setting. Why did you choose a Knowledge Graph as the backend? How is the graph modeled. Do you use existing Graph Query languages, or did you have to create your own?

How far off is an API? Looks slick but I’d want to be able to query programmatically

I'm sure tools like this are useful to salespeople and recruiters, but it also seems like a dream resource for spammers, scammers and esp. phishing attacks.

Love this product and the overall strategy.

Congrats, Anthony and Ben! Super excited for you both! (And still miss you at Kaggle!) :-)

Nicely done. Do you have a roadmap, public ticketing system or communication channel?

> For example, here's a list of GenAI projects at Capital One that involve RAG/Vector databases: https://sumble.com/l/6sDqKmhyAH

requires you to sign in, which then follows by marketing emails.

Super interesting!

Please ingest the biotech industry!