Fundraising Fox

Lightsynq

3 known investors

Lightsynq develops optical quantum interconnects using integrated diamond photonic circuits to enable scaling of fault-tolerant quantum computers. The company serves quantum computing system builders seeking solutions to address interconnectivity bottlenecks in large-scale quantum systems.

Also known as Lightsynq Technologies Inc.

Deep TechQuantum Computing

Investors · 3

Grit VenturesMenlo Park · $100K – $1M
Safar PartnersCambridge
Top Corner CapitalBurlingame

Company profile

researched Aug 2026

Lightsynq Technologies Inc. is a quantum technology company developing universal optical quantum interconnects intended to make quantum computers modular and enable scaling toward large-scale, fault-tolerant systems. Its stated architecture is designed to be broadly compatible with leading quantum computing modalities rather than tied to a single qubit platform.

The company's approach centers on integrated diamond photonic circuits. Its work spans quantum physics, quantum networking, quantum computing, quantum error correction, nanophotonics, systems engineering and research software development, which are also the areas in which it recruits.

Founding story

Lightsynq was co-founded by Mihir Bhaskar (Chief Executive Officer), Bart Machielse (Chief Technology Officer) and David Levonian (Chief Product Officer), who published a statement on the company's motivation titled "Why We Founded Lightsynq."

▸Full profile — market position, technology, go-to-market, geography

Market position

Lightsynq positions itself as a supplier of modality-agnostic quantum interconnects that bridge the gap between current quantum processors and large-scale quantum computers.

The company emphasizes an interconnect architecture that is not limited to one qubit modality, combined with in-house integrated diamond photonics and a team with backgrounds spanning quantum technologies research.

Technology

Lightsynq builds optical quantum interconnects that leverage integrated diamond photonic circuits. The interconnect architecture is described as universal and broadly compatible with leading quantum computing modalities, targeting the interconnection bottleneck that limits the scale of fault-tolerant quantum computers.

Go-to-market

The technology is aimed at builders and operators of quantum computing systems seeking to link modules together to reach larger, fault-tolerant machines.

Geography

The company is headquartered at 1284 Soldiers Field Rd, Brighton, Massachusetts 02135, USA.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Team members listed on company websiteJan 202415 people

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

Competitors · 5

by search overlap
IonQ18 shared keywordsIonQ builds trapped-ion quantum computing systems along with quantum networking, sensing, and security products, offering commercial systems accessible through major cloud providers and integration with common quantum libraries. It serves enterprise and government customers across applications such as chemistry simulation, materials science, AI model fine-tuning, and quantum-secure communications.
Infleqtion11 shared keywordsInfleqtion builds neutral-atom quantum computers, precision quantum sensors, and related software, and works on integrated photonics to scale quantum systems. It serves governments, corporations, and research institutions across sectors such as defense, national security, energy, and space, with installations in the US, UK, Japan, and Australia.
Qunnect10 shared keywordsQunnect develops room-temperature hardware for building scalable quantum networks over existing telecommunications infrastructure. The company operates in the quantum networking and deep-tech hardware space.
Quantinuum9 shared keywordsQuantinuum develops quantum computers and quantum software solutions for applications in drug discovery, healthcare, materials science, cybersecurity, and energy. The company operates as an integrated quantum technology platform serving enterprise and research customers globally.
Optics8 shared keywordsOptics.org is an online news publication covering the photonics and optics industry, reporting on developments in lasers, imaging, semiconductor lasers, and related technologies as well as company and market news. It also promotes industry events such as the SPIE Startup Challenge.

Companies competing with Lightsynq for the same Google search keywords, organic and paid, via search-intersection analysis.

▸Research sources · 1

primary sources listed

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

Frequently asked questions

What does Lightsynq do?
Lightsynq develops universal optical quantum interconnects based on integrated diamond photonic circuits.
Who are Lightsynq's investors?
Lightsynq's investors include Grit Ventures, Safar Partners, Top Corner Capital.