Sim Blaustein
Partner @ 1745 Ventures
New York, United States
Sim Blaustein is a Series A investor at 1745 Ventures in New York focused on Internet and Software. Sim Blaustein is based out of Brooklyn, New York and is the Board Member of the Board of Directors of Atlas Obscura. Sim previously worked at Third Kind Venture Capital as Co-Founder. Sim Blaustein attended MIT - Sloan School of Management.
- Total investments:
- 6
- Last investment:
- Lead investor:
- 50%
Last updated:
For AI agents: llms.txt
Industries Sim Blaustein invests in
Stages Sim Blaustein invests in
Countries Sim Blaustein invests in
Contacts
| Type | Contact | Validation |
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| Work email | ||
| Personal email | ||
| Work phone | ||
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Investment Focus
Industry
- Internet 2 (33%)
- Software 2 (33%)
- Analytics 2 (33%)
- Advertising 2 (33%)
- Information Technology 2 (33%)
Stage
- Series A 3 (50%)
- Seed 1 (17%)
- Series C 1 (17%)
- Convertible Note 1 (17%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| TvScientific is a CTV platform that makes TV advertising accessible and measurable for brands and apps of all sizes. TvScientific leverages data to prove the actual value of TV advertising and simplifies and automates CTV buying and optimization. TvScientific provides actionable, real-time reporting so people may feel confident their campaigns areperforming at their peak levels. Users may gain insightful information about the incremental value of CTV campaigns from the Always-On Incrementality testing feature, which gives them further confidence that they are generating the desired results. | $9.4M / Convertible Note / Feb 28, 2024 | ||
| Antenna provides best-in-class market intelligence to direct-to-consumer subscription businesses. Antenna is a data and analytics startup that aims to expand knowledge of subscriber behavior so brands can entertain, inspire, and empower the world. It provides industry and competitive benchmarks across key metrics so their customers can know ‘whatgood looks like’, market intelligence so they can learn how to build a best-in-class business, and insights to inform their strategic decision-making. | $10M / Series A / Feb 01, 2022 | ||
| Headquartered in New York City, Suzy is a technology platform that harnesses collective insights from millions of consumers worldwide to deliver real-time intelligence. Suzy is the voice of consumers, helping companies validate critical assumptions so they can create compelling new products, develop effective marketing strategies, and validatedirect offers that increase conversion, improve path-to-purchase, and drive growth. The company is backed by Foundry Group Tribeca Venture Partners, and The Durant Company among others, and trusted by Fortune 500s and challenger brands alike - including Netflix, Coca-Cola, Procter & Gamble, Johnson & Johnson, Citibank, Verizon, Nintendo, and Nestle, among others. Millions of business decisions are made every day based on untested assumptions, Suzy gives companies an unprecedented direct line of communication to their customers on demand; helping them instantly validate anything, anytime, anywhere. | $12M / Series C / Feb 04, 2020 | ||
| At Inverse, we obsess over one question: What could happen next? To provide answers — and there are many — we search out emerging ideas, new technologies, and simmering trends as well as fearless innovators, designers, and thinkers. We’re compulsively curious not only because we’re fans of progress, but also because we want a glimpse of the futureand the chance to better plan for and enjoy tomorrow. | $6M / Series A / Sep 26, 2016 | ||
| Pathmatics is a marketing platform that gives visibility to the digital ad performance of brands, their competitors, and entire industries. It turns the world’s marketing data into actionable insights as consumption rapidly shifts to digital, media decisions have become too complex and opaque. It brings together display, social, video, mobile, andnative advertising data, helping users to optimize media and marketing decisions. Brands and agencies get access to the creative used by all advertisers, spend and impression data, and path from publisher to viewer. This empowers them to minimize waste from their budgets, better position their marketing, and predict the next moves of their competitors. Pathmatics data powers Nielsen’s digital ad intelligence offering, Kantar Media’s Facebook intelligence, and is used by agencies like Mindshare, Mediacom, and Possible. Pathmatics was founded in 2011 and is headquartered in Santa Monica, California, and is backed by Upfront Ventures, BDMI, and Baroda Ventures. | $3M / Series A / Mar 02, 2016 | ||
| At Inverse, we obsess over one question: What could happen next? To provide answers — and there are many — we search out emerging ideas, new technologies, and simmering trends as well as fearless innovators, designers, and thinkers. We’re compulsively curious not only because we’re fans of progress, but also because we want a glimpse of the futureand the chance to better plan for and enjoy tomorrow. | $50K / Seed / Aug 12, 2015 |
Co-Investors
About 1745 Ventures
TBA
1745 Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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Sim Blaustein
Partner
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Daniel Bok
VC Investor
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Urs Cete
Co-Founder & Managing Partner
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FAQ
What does Sim Blaustein invest in?
Sim Blaustein invests primarily in Internet, Software and Analytics startups, most often at Series A and Seed stage. Most of the 6 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Sim Blaustein?
Public channels for Sim Blaustein include LinkedIn, X (Twitter) and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Sim Blaustein last invest?
The most recent investment recorded for Sim Blaustein closed in Feb 2024. Shizune tracks 6 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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