# Paul Straub

> Paul Straub is a Series A investor at Wireframe Ventures (San Francisco) backing Energy and SaaS. See 14 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Wireframe Ventures](https://shizune.co/investors/profile/wireframevc)
- Location: San Francisco, United States
- Total investments: 14
- Last investment: Nov 2025
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/paulstraub

Paul Straub is a Series A investor at Wireframe Ventures in San Francisco focused on Energy and SaaS. Paul Straub - Managing Partner, Director & Co-founder @ Wireframe Ventures

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 3 | 21% |
| SaaS | 2 | 14% |
| Software | 2 | 14% |
| TV | 1 | 7% |
| Lighting | 1 | 7% |

22 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 4 | 29% |
| Seed | 3 | 21% |
| Series B | 3 | 21% |
| Series C | 2 | 14% |
| Pre-Seed | 1 | 7% |

6 stages tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| C.Scale | C.Scale is predictive SaaS enabling zero carbon building at scale. Our lightweight AI and ML models democratizes access to data around carbon mitigation strategies without the high cost of expert consulting or full-time salaried experts. When highly-detailed energy modeling and life cycle assessment aren't affordable or practicable, teams useC.Scale.C.Scale is the data model behind our open access and free Early-Phase Integrated Carbon Assessment tool (EPIC) currently helping 4,000+ users aim for carbon neutrality in their buildings, and available for all at epic.ehdd.com. We developed EPIC internally at the architecture firm EHDD to solve a problem that we had as we moved away from net zero energy design towards zero carbon design. There were no tools available to get us beyond intuition in weighing embodied and operational carbon decisions early in the design process. EPIC solved that problem so well that we decided to share it freely with the world in order to increase the speed and scale of climate impact the tool could have.C.Scale enables the full range of actors in the built environment low-friction access to data and insights in an intuitive and welcoming user interface. In this way we are democratizing access to data and expertise. Currently only design firms and owners willing and able to invest the time and money into custom consulting or detailed analysis are able to integrate data-driven insights into their work. Climate action should not and cannot be the domain of the few if we are to meet our climate action targets.C.Scale is an outgrowth of the culture of innovation at EHDD, an architecture firm with offices in San Francisco and Seattle. | $2M | Pre-Seed | Nov 04, 2025 |  |
| Bedrock Energy | Bedrock Energy is developing drilling technology and advanced subsurface simulation software to enable geothermal heating and cooling. The company develops autonomous drilling technology and advanced subsurface simulation software to make geothermal heating and cooling more widespread, affordable, and accessible. | $12M | Series A | Jan 22, 2025 |  |
| Bedrock Energy | Bedrock Energy is developing drilling technology and advanced subsurface simulation software to enable geothermal heating and cooling. The company develops autonomous drilling technology and advanced subsurface simulation software to make geothermal heating and cooling more widespread, affordable, and accessible. | $8.5M | Seed | Oct 11, 2023 |  |
| Electriphi | Electriphi develops end-to-end energy management and fleet operations software for light, medium, and heavy-duty commercial fleets. It helps to ave energy costs, optimize infrastructure, and ensure fleet's operational readiness with Electriphi's managed charging software built on AI and machine learning technology. | $3.5M | Seed | Feb 20, 2020 |  |
| Blue Pillar | At Blue Pillar, we connect industrial equipment to the internet and serve up the data to manage, monitor, and control equipment and devices so our customers can create flexible, scalable solutions for themselves or their customers. We're energized by the challenge of making the power of Industrial IoT widely accessible. We make things alittle better in a connectivity-centric world where things are a lot harder than they should be. | $10M |  | Jan 06, 2017 |  |
| Alphabet Energy | Alphabet Energy, Inc. is commercializing a breakthrough, inexpensive waste heat recovery technology developed at the Lawrence Berkeley National Laboratory. Our revolutionary thermoelectric approach and materials platform is the only of its kind that lends itself to massive scale at low cost. With our products, made entirely from sustainablematerials, customers may use their waste heat to generate electrical power in the range of microwatts to megawatts. |  | Series C | Jul 13, 2016 |  |
| Blue Pillar | At Blue Pillar, we connect industrial equipment to the internet and serve up the data to manage, monitor, and control equipment and devices so our customers can create flexible, scalable solutions for themselves or their customers. We're energized by the challenge of making the power of Industrial IoT widely accessible. We make things alittle better in a connectivity-centric world where things are a lot harder than they should be. | $7M | Series B | May 01, 2012 |  |
| Project Frog | Founded in 2006 in San Francisco, California, Project Frog develops component buildings that assemble easily onsite, giving architects and builders a fast and cost-effective way to create beautiful and energy-efficient buildings. Project Frog is on a mission is to revolutionize the way buildings are created by applying technology to overcome theinefficiencies of traditional construction. The company’s approach results in a structure that is measurable greener and significantly smarter, creating brighter, healthier spaces that inspire better performance by the people who occupy them. The versatile ecosystem of products adapt to all kinds of uses including: healthcare, education and retail. | $22M | Series C | Sep 08, 2011 |  |
| Alphabet Energy | Alphabet Energy, Inc. is commercializing a breakthrough, inexpensive waste heat recovery technology developed at the Lawrence Berkeley National Laboratory. Our revolutionary thermoelectric approach and materials platform is the only of its kind that lends itself to massive scale at low cost. With our products, made entirely from sustainablematerials, customers may use their waste heat to generate electrical power in the range of microwatts to megawatts. |  | Seed | May 03, 2010 |  |
| TargetCast Networks | TargetCast Networks enables advertisers to reach the increasing away from home television viewers watching sports, entertainment, and news programming on television screens in public locations.The TargetCaster patented device creates an IPTV public space network combining the selling power of television with the targeting and flexibility of theinternet. | $6.5M | Series B | Sep 30, 2009 |  |

10 of 14 investments shown.

## Co-investors
- [CalCEF Clean Energy Angel Fund](https://shizune.co/investors/profile/calcef-clean-energy-angel-fund) — VC Fund, 4 deals together
- [Allos Ventures](https://shizune.co/investors/profile/allos-ventures) — VC Fund, 2 deals together
- [Arsenal Growth Equity](https://shizune.co/investors/profile/arsenal-venture-partners) — VC Fund, 2 deals together
- [Cantos](https://shizune.co/investors/profile/cantos-ventures) — VC Fund, 2 deals together
- [Overture Ventures](https://shizune.co/investors/profile/overture-vc) — VC Fund, 2 deals together
- [First Star Ventures](https://shizune.co/investors/profile/procyon-ventures) — VC Fund, 2 deals together

## About Wireframe Ventures

VC Fund · Mill Valley, United States

Wireframe Ventures is a venture capital firm investing at the seed and pre-seed stage. We back missionary founders using technology to positively impact people & planet.

3 contacts available at Wireframe Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Lily Bernicker | Principal | https://shizune.co/investors/profile/lily-bernicker |
| Harsh Patel | Co-Founder & Managing Partner | https://shizune.co/investors/profile/harsh-patel-3 |
| Paul Straub | Managing Partner, Director & Co-founder | https://shizune.co/investors/profile/paul-straub |

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## FAQ

### What does Paul Straub invest in?

Paul Straub invests primarily in Energy, SaaS and Software startups, most often at Series A and Seed stage. Most of the 14 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Paul Straub last invest?

The most recent investment recorded for Paul Straub closed in Nov 2025. Shizune tracks 14 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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