/Companies

Brilliantly

Techstars '23

Providence, US · Founded 2017 · 8 employees on LinkedIn · 1 known investors

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Brilliantly Warm develops a wearable heating device worn in a bra that provides whole-body warmth for women. The patent-pending technology is designed for comfort and daily use without adhesives, chemicals, or cords.

Also known as Brilliantly Warm

Founders & leadership

Brilliantly was founded in 2017 by Kristen Carbone.

KCKristen Carbone
Kristen CarboneFounder · CEOKristen Carbone spent a decade in museum curation roles at institutions including the Albright-Knox Art Gallery and the Museum at the Rhode Island School of Design, later founded an artists' advocacy business and served as executive director of a public art collective, and worked as a project manager for business consulting firms before founding Brilliantly Warm.

Investors · 1

Techstarslisted by TechstarsBoulder · $220K

How we know: the Techstars portfolio · open dataset · Top 3000 Accelerator Startups (no YC) 2026-08 · Not right? Tell us

Company profile

researched Sep 2026

Brilliantly is a consumer products company based in Providence, Rhode Island, that develops wearable warming technology for women. Its go-to-market product, Brilliantly Warm, is a patent-pending, app-controlled device that is placed inside any bra and delivers cycles of warmth to the wearer's core, producing an all-over warming sensation without adhesives, chemicals, hot water, bulky batteries, or cords. Users select among three warmth intensity modes through the Brilliantly Warm mobile app, and the company states the device is small enough to be worn under any outfit, during most activities, and while sleeping.

The company positions the product for women who have undergone mastectomy and reconstructive surgery and subsequently experience chronic coldness, while describing the broader addressable opportunity as the heating pad market. The device was developed with medical device engineers, and the company cites research linking physical comfort to cognition, focus, and general wellbeing as part of its product rationale. Brilliantly is incorporated as a C-corp and operates with a very small team.

Founding story

Founder Kristen Carbone's mother died of metastatic breast cancer at age 49, and Carbone underwent a preventative mastectomy in 2013. Afterward she experienced a shift in her relationship with her body, particularly in temperature regulation, and found herself feeling cold most of the time. Upon speaking with other women in the breast cancer community who had the same surgery and similar difficulty staying warm, she designed a heating technology that could be worn under clothing and launched Brilliantly to sell it. Carbone, a breast cancer previvor and a mother of two, previously worked as a museum curator and creative problem-solving consultant.

Business model

Brilliantly sells a consumer hardware device, Brilliantly Warm, paired with a companion mobile app that controls warmth settings. The product is offered direct to consumers through the company's website, which currently operates a waitlist while inventory is sold out.

Revenue is generated from direct sales of the Brilliantly Warm wearable device to consumers.

Traction

The company launched its product in 2021 and describes the resulting market as larger than initially anticipated. Its Gust profile lists the stage as Product In Market and headcount as one employee; a third-party data aggregator lists 1-10 employees. The website currently indicates the product is sold out with a customer waitlist in place.

Latest developments

The company's website states that Brilliantly Warm is currently sold out and directs prospective customers to join a waitlist.

▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Brilliantly describes itself as targeting the heating pad market, which it sizes at $400 billion, with an initial market of $1.25 billion among the breast cancer community. The founder positions the company within a wave of women's health startups addressing underserved issues, and differentiates from existing heated garments and other warming tech solutions on the basis of invisibility under clothing.

The founder states that while heated garments and other warming technology solutions exist, none are invisible under any outfit. Brilliantly Warm's differentiation rests on discreet in-bra placement, app-based control of three intensity modes, core-directed warmth that does not feel hot on the skin, and the absence of adhesives, chemicals, cords, hot water, or bulky batteries.

Technology

Brilliantly Warm is a patent-pending wearable warming device developed with medical device engineers. It is worn inside a bra and delivers cycles of warmth at the body's core rather than surface heat that feels hot on the skin. It requires no adhesives, chemicals, hot water, bulky batteries, or cords, and is controlled via a smartphone app offering three warmth intensity modes. The company's web presence uses Wix, React, Google Cloud and Google Cloud CDN, Sentry, Lodash, Sirvoy, and Google Workspace.

Go-to-market

The company markets directly to consumers through its own website and social channels (Instagram, Facebook, TikTok), supported by founder-led storytelling within the breast cancer and women's health communities. Distribution is direct-to-consumer, with a waitlist used during periods when the product is out of stock.

Women who experience chronic coldness, with an initial focus on the breast cancer community — particularly women who have had mastectomy and reconstructive surgery and now suffer from chronically cold breasts — and more broadly consumers seeking portable, discreet personal warming.

Geography

Headquartered in Providence, Rhode Island, United States.

History

Sources give the founding as 2017 (Prospeo) and October 2018 (Gust profile). In February 2020 the company completed a major round of user testing and planned the final phase of research and development ahead of production, but investors who had verbally committed in February and early March 2020 withdrew during the first week of Covid-19 lockdowns. The company subsequently brought on an engineering firm as a strategic partner to complete the final phase of R&D and manufacture the first production run, and launched the product in 2021 despite supply chain and funding setbacks. As of the company website, the product is sold out and prospective customers are directed to a waitlist.

Risks & controversies

Investors who had verbally committed to funding in February and early March 2020 withdrew at the onset of Covid-19 lockdowns, and the company faced pandemic-related supply chain issues and funding limitations before its 2021 launch. The founder has described personal circumstances, including being a single parent and losing housing twice since starting the company. Public sources disagree on the founding date (2017 versus October 2018), and the business remains very small, with one to ten employees.

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
EmployeesJan 20261
Initial addressable market (breast cancer community, company-stated)Jan 2026$1.3B
Total addressable market (heating pad market, company-stated)Jan 2026$400B

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Timeline · 1

launches, deals, and filings
Jan 2021
Brilliantly Warm launched to market

The company brought its wearable in-bra warming device to market in 2021 after Covid-related supply chain and funding setbacks, having partnered with an engineering firm to complete the final phase of R&D and manufacture the first production run.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

▸Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Brilliantly do?
Brilliantly makes Brilliantly Warm, an app-controlled wearable warming device that fits invisibly into any bra.
Who founded Brilliantly?
Brilliantly was founded by Kristen Carbone in 2017.
Who are Brilliantly's investors?
Brilliantly's investors include Techstars.
Where is Brilliantly headquartered?
Brilliantly is headquartered in Providence, US.