Insights

Strategic Focus Target Castile Ventures as a partner for early-stage technology startups seeking strategic guidance and active portfolio involvement, emphasizing their emphasis on leading or co-leading investment syndicates and leveraging deep tech and business experience.

Portfolio Synergy Position solutions that complement Castile's portfolio companies, such as data extraction, web intelligence, and IT decision-maker outreach, highlighting potential for co-selling, integrations, or shared go-to-market initiatives.

Tech Stack Alignment Offer services and products that align with their current technology stack (Fastly, Firebase, Google Cloud, HTTP/3, Google Analytics/Search Console) to reduce integration risk and accelerate onboarding for portfolio firms.

Early Stage Value Frame capabilities around accelerating early-stage growth, including scalability, operational efficiency, and strategic advisory, to help Castile identify high-ROI opportunities for their next fund cycles.

Market Positioning Highlight differentiators such as hands-on guidance, sector expertise, and strong industry connections to craft outreach that underscores competitive advantages over peers and aligns with Castile's performance-driven narrative.

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Castile Ventures Tech Stack

Castile Ventures uses 8 technology products and services including Fastly, Firebase, Google Cloud DNS, and more. Explore Castile Ventures's tech stack below.

Fastly
Content Delivery Network
Firebase
Database
Google Cloud DNS
Domain Name Services
DreamWeaver
Editors
Google Workspace
Email
HTTP/3
Web & Portal Technology
Google Analytics
Web Analytics
Google Search Console
Web Analytics

Media & News

Castile Ventures invests into Connotate in Series B1.
Connotate, Inc., a web data extraction platform provider for the information services industry and data-centric businesses, announced an $11 million Series B-1 financing led by Long River Ventures, with participation from existing shareholders .406 Ventures, Castile Ventures, Fernwood Funding LLC, Prism Ventures, and other angels
Nov 18, 2016 | www.econtentmag.com

Castile Ventures's Email Address Formats

Castile Ventures uses at least 1 email format:

Castile Ventures Email Formats	Example	Percentage
First@castileventures.com	John@castileventures.com	100%

Frequently Asked Questions

What is Castile Ventures's phone number?

You can contact Castile Ventures's main corporate office by phone at

+1-781-890-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Castile Ventures's official website and social media links?

Castile Ventures's official website is castileventures.com and has social profiles on LinkedIn.

How much revenue does Castile Ventures generate?

As of July 2026, Castile Ventures's annual revenue is estimated to be $10M - $25M.

What is Castile Ventures's SIC code?

Castile Ventures's SIC code is 6371 - Pension, Health, and Welfare Funds.

How many employees does Castile Ventures have currently?

As of July 2026, Castile Ventures has approximately 11 employees across 2 continents, including North America and South America. Key team members include Partner Chief Financial Officer: L. S. Explore Castile Ventures's employee directory with LeadIQ.

What industry does Castile Ventures belong to?

Castile Ventures operates in the Venture Capital & Private Equity industry.

What technology does Castile Ventures use?

Castile Ventures's tech stack includes Fastly, Firebase, Google Cloud DNS, DreamWeaver, Google Workspace, HTTP/3, Google Analytics and Google Search Console.

What is Castile Ventures's email format?

Castile Ventures's email format typically follows the pattern of First@castileventures.com. Find more Castile Ventures email formats with LeadIQ.

When was Castile Ventures founded?

Castile Ventures was founded in 1998.

Castile Ventures

Q: What is Castile Ventures's official website and social media links?

Castile Ventures's official website is castileventures.com. Castile Ventures has social profiles on LinkedIn.

Q: How many employees does Castile Ventures have currently?

Castile Ventures has approximately 11 employees.

Q: What technology does Castile Ventures use?

Castile Ventures's tech stack includes Google Domains, HTTP/3, Google Analytics, HSTS, DreamWeaver.

Venture Capital & Private EquityMassachusetts, United States11-50 Employees

Castile Ventures is an early-stage venture capital firm based in Waltham, Massachusetts. It provides capital and strategic guidance to technology-focused entrepreneurs aiming to build scalable, innovative businesses. The firm is distinguished by the extensive business and technology experience of its partners and typically leads or co-leads investment syndicates while taking an active role in advising portfolio companies. 

With sector expertise, operational insights, and a network that includes IT decision makers and innovators, Castile Ventures supports its portfolio as it pursues market-transforming opportunities. This approach has helped the firm attract and develop a portfolio of vigorous businesses and positions it within the venture capital and private equity arena.