# Carl Sparks

> Carl Sparks is a seed investor at Interlock Partners (Dallas) backing Marketplace and SaaS. See 8 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Interlock Partners](https://shizune.co/investors/profile/interlock-partners)
- Location: Dallas, United States
- Total investments: 8
- Last investment: Jun 2023
- Lead investor: 25%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/pub/carl-sparks/0/241/836

Carl Sparks is a seed investor at Interlock Partners in Dallas focused on Marketplace and SaaS. Carl Sparks is the Managing Partner at Interlock Partners.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Marketplace | 3 | 38% |
| SaaS | 2 | 25% |
| Travel | 2 | 25% |
| Artificial Intelligence | 2 | 25% |
| Baby | 1 | 13% |

35 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 38% |
| Series A | 3 | 38% |
| Series B | 2 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| GoodBuy Gear | Good Buy Gear is a developer of an online marketplace used to extend the life of the baby and kids' gear and make the lives of parents a little easier. Its platform uses product photos, descriptions, recommends pricing, and promotes kids' items in order to sell products quickly, enabling customers to enjoy a safe and easy shoppingexperience with curated product collections.Good Buy Gear was co-founded by Kristin Langenfeld and Jessica Crothers in 2016 and is headquartered in Arvada, Colorado. | $14M | Series B | Jun 20, 2023 |  |
| Music Audience Exchange | Music Audience Exchange develops a platform that facilitates music partnerships and provides marketing services. It is powered by an insights engine that matches brands to artists and a proprietary marketing automation system for generating and distributing brand-new music content to targeted audiences across audio, video, social, and live. Thecompany was founded in 2014 and is headquartered in Frisco, Texas. | $4.1M | Series B | Oct 20, 2022 |  |
| Titan | Top 1% coaches for top 1% performers.Titan matches VC-backed founders with world-leading executive coaches and performance psychologists to maximize their performance - and the performance of their business.We have raised $5.7mm from top executives at Google, PayPal, Lyft, and AirBnB and investors who previously funded Square, Instacart,Twilio, GrubHub, StitchFix, OpenDoor, and SpaceX.You can learn more about Titan here: https://www.withtitan.com/ | $4.2M | Seed | Jun 09, 2022 |  |
| Gripnr | Gripnr is a Web3 technology company bringing tabletop games to the blockchain. | $2.5M | Seed | Apr 12, 2022 |  |
| Constructor | Constructor.io is the only search and product discovery platform tailor-made for enterprise eCommerce where conversions matter. Constructor's cloud-based solutions use natural language processing, machine learning-enhanced results ranking, and collaborative personalization to deliver powerful user experiences across all facets of productdiscovery -- from search to browse, recommendations, autosuggest, quizzes, and attribute enrichment.We optimize revenue before relevance. This has allowed us to generate consistent $10M+ lifts for our customers, which include some of the biggest brands in retail like Sephora, American Eagle, Backcountry, Birkenstock, and Bonobos. Constructor is a remote-first company with employees around the world. We were founded in 2015 by Eli Finkelshteyn and Dan McCormick. | $55M | Series A | Sep 15, 2021 |  |
| Mint House | Mint House is a start-up hospitality company that disrupts the traditional hotel model. The company offers rentals with spacious units with full-service kitchens, pre-arrival fridge stocking, and no-hassle keyless entry, among other features, enabling business travelers to book affordable homes in prime locations. It provides a unique experiencethat offers the feel of a high-end hotel, with all the comforts and conveniences of a home, all packaged and delivered via technology. Financed and advised by seasoned hospitality executives including the former CEO of Starwood Hotels, President of St. Regis, and CEO of Travelocity, Mint House is in hyper-growth mode expanding around the country and opening new markets every several months. The company is headquartered in New York and operates in multiple locations across the United States. It was founded in January 2017. | $15M | Series A | May 09, 2019 |  |
| The Lobby | The Lobby (YC W18) is a marketplace where job candidates can instantly get mock interviews, resume reviews, and insights from company insiders, starting with the finance industry. It is on a mission to democratize access to the best jobs and make the hiring process more transparent and meritocratic than it is today. The company is aventure-backed startup located in the heart of Tribeca, New York City with an amazing roster of investors including Y Combinator, Ataria Ventures, 37 Angels, the former CEO of Travelocity Carl Sparks, Chief Innovation Officer at Columbia Business School Angela Lee, a former Goldman Sachs Partner & $2bn hedge fund manager, and more. | $1.2M | Seed | Sep 27, 2018 |  |
| Peek | Peek is an AI-enabled platform that supports online booking, payment processing, dynamic pricing, and guest management, while automating scheduling, waivers, communication, and analytics. With a marketplace at Peek.com, it offers travelers access to tens of thousands of curated experiences—everything from immersive exhibits and city tours toclasses and adventures. Through recent acquisitions of ACME Ticketing and Connect&GO, Peek now extends its infrastructure to include membership, donations, RFID-based visitor tracking, and on-site operations. Its clients include major institutions like MoMA, the Whitney Museum, Seattle Aquarium, Bryant Park, Looping Group, and Museum of Ice Cream. | $10M | Series A | Jul 28, 2016 |  |

8 of 8 investments shown.

## Co-investors
- [Revolution Ventures](https://shizune.co/investors/profile/revolution-ventures) — VC Fund, 2 deals together
- [Ataria](https://shizune.co/investors/profile/01ventures) — VC Fund, 1 deal together
- [37 Angels](https://shizune.co/investors/profile/37-angels) — VC Fund, 1 deal together
- [Abstraction Ventures](https://shizune.co/investors/profile/abstraction-ventures) — VC Fund, 1 deal together
- [Access Venture Partners](https://shizune.co/investors/profile/access-venture-partners) — VC Fund, 1 deal together
- [Abstract](https://shizune.co/investors/profile/a-list-ventures) — VC Fund, 1 deal together

## About Interlock Partners

VC Fund · Dallas, United States

Interlock Partners is an early-stage venture capital firm based out of Texas and New York

4 contacts available at Interlock Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Carl Sparks | Managing Partner | https://shizune.co/investors/profile/carl-sparks |
| Harry Hawks | Managing Partner | https://shizune.co/investors/profile/harry-hawks |
| Inobat Karras | Principal | https://shizune.co/investors/profile/inobat-kapras |
| Jeff Williams | Managing Partner | https://shizune.co/investors/profile/jeff-williams-11 |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Carl Sparks invest in?

Carl Sparks invests primarily in Marketplace, SaaS and Travel startups, most often at Seed and Series A stage. Most of the 8 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 Carl Sparks last invest?

The most recent investment recorded for Carl Sparks closed in Jun 2023. Shizune tracks 8 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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