← Back to browse

Cover

by Brett Adcockvia My First Million
Growthother
The Spark

Brett Adcock became obsessed with the exponential rise in K-12 school shootings in America after analyzing the data. Over the last seven years, school shootings had increased roughly 10x, with several hundred thousand guns being brought into schools annually. Unlike the high-profile mass shooting narratives, Adcock discovered that 98% of school shootings involved a student bringing a handgun as "an accessory" in their backpack, getting into a fight, and escalating to violence. He realized the solution wasn't just gun control—it was detection.

Building the First Version

While reading research papers as a hobby, Adcock discovered a 2013 NASA Jet Propulsion Lab project that had developed high-frequency radar technology for detecting bomb vests and weapons through garments in conflict zones like Afghanistan and Iraq. He cold-called the researcher who led the project, flew to Pasadena, and was given a basement demo of the dusty, dated machine. When the scientist turned it on and showed him a mannequin with a hidden gun, Adcock saw a camera-like image of the weapon reconstructed via radio frequency—essentially a 3D point cloud. He was hooked.

An investor coincidentally brought the problem to Adcock's attention in 2023 while he was working on Figure (his humanoid robotics company). The investor asked: "As somebody with kids, how are you not trying to make this work?" Adcock decided to pursue it. Within months, Cover was formed with about 12 people, all intellectual property licensed from JPL, and a first system scheduled to be operational within 30 days.

What Worked (and What Didn't)

Adcock's cold-call strategy worked because he was genuinely passionate about the JPL researcher's decade-old work and articulated that clearly. Most people will take a call from someone who has read their research and cares deeply about it. However, Adcock is candid that schools are actually "the worst market" for fundraising—they have tiny budgets and don't allocate capital for security systems like this. The real money, he acknowledges, is in stadiums, hospitals, airports, and concert venues with serious security budgets and existing security infrastructure (metal detectors, TSA PreCheck, Homeland Security contracts).

Where They Are Now

Cover is pre-revenue and pre-announcement (the interview represents the first public discussion). Adcock is funding it as a passion project and hasn't decided whether to raise outside capital. He explicitly states he doesn't care about the business model or investor pitches—he's building it to solve K-12 school shootings, not to maximize returns. The first operational system is being set up to begin imaging weapons. Adcock's philosophy on the longer-term vision is that longevity increases risk aversion; as humans live longer, they'll demand ubiquitous safety systems like this in stadiums, churches, hospitals, and public spaces—creating a massive multi-billion-dollar TAM, even if schools alone don't justify the business case.

Similar Companies

Plunge

$10.0M/mo

Plunge is a hardware company that manufactures and sells at-home cold plunge devices. Founded in 2020 by Ryan Duey and Michael after their brick-and-mortar float therapy and sauna businesses were impacted by COVID, the company grew from $270k in first-year revenue to $120M+ ARR in four years. Their success is driven by influencer gifting, organic word-of-mouth, and highly efficient paid advertising (7-10x ROAS on Facebook and Google).

Hive Blockchain

$2.5M/mo

Hive Blockchain is a digital currency mining company founded by Harry Pochgranti that validates cryptocurrency transactions on blockchain networks, primarily Ethereum. The company went public on the TSX Venture Exchange in September 2017, raising $17 million on day one followed by additional equity raises totaling approximately $200 million Canadian by end of 2017. As of Q1 2018, Hive operates mining facilities in Iceland and Sweden with a $30 million annualized run rate revenue.

Collective

$1.0M/mo

Collective raised $50M in funding to compete with HR and business management platforms like Rippling and ZenBusiness. The company has achieved approximately $1M MRR, indicating strong product-market fit and growth trajectory in the HR/business operations space.

Event SaaS

$500k/mo

Event SaaS is a SaaS platform that has achieved significant growth, reaching $6M in annual recurring revenue with 100% year-over-year growth. The company raised $28M in funding at a $128M valuation, demonstrating strong market traction and investor confidence.

Vertigris

$260k/mo

Vertigris is a Silicon Valley-based IoT hardware and SaaS company founded by Mark Chung and two co-founders that helps commercial buildings monitor and optimize electricity usage. They install magnetic sensor clamps on electrical panels paired with an iPhone-like gateway device, then provide recurring software services for energy management and predictive analytics. With 300 customers generating approximately $260k MRR ($3.12M ARR) and a goal to reach $5M revenue in 2017 (4x growth from $1.2M in 2016), they've raised $16M in venture capital and leverage Verizon's 900-person sales team as their primary growth channel.