Numeral
AI-powered software that automates sales tax and VAT compliance for global businesses.
$100MSeries C
ParticipantM
Mayfield
mayfield.com ↗Activity from announced rounds
All recorded activity
Mayfield is an early-stage technology investor focused on being the first institutional backer of AI founders, with most of its investments beginning at company inception.
Its AI investing reaches into the physical infrastructure needed for adoption as well as software. The firm’s Lumilens investment addresses optical connectivity between processors and computing systems, illustrating its interest in technical bottlenecks below the application layer.
Mayfield’s CXO of the Future community connects it with enterprise leaders. That commercial perspective complements its inception-stage work when founders need to understand the requirements of corporate buyers for a new technology.
Sources
- Rounds participated in
- 17
- Confirmed lead rounds
- 1 14 roles undisclosed
- New companies
- 14 First participation on record · 3 follow-on
- Funding in participating rounds
- $1.5B 15 disclosed · full round size, not this investor’s share
By stage
1 more
Series B1
By primary sector
By country
Rounds
17 in all activityHello Haven
A personal AI assistant that remembers a user's preferences and helps manage everyday tasks through app, text, email or phone conversations.
$15MPre-Seed
LeadHang Ten Systems
Combines AI agents and engineering services for enterprise software development and technology projects.
$53MAdditional seed funding
ParticipantVelaura AI
Develops ultra-low-power silicon for AI data centers and Physical AI systems
$110MSeries A
Role not disclosedLumilens
Lumilens develops optical interconnects for connecting GPUs in AI data centers.
>$700MSeries C
Role not disclosedBespoke Labs
Builds environments and infrastructure for reliable AI agents
$40MSeries A
Role not disclosedHang Ten Systems
Combines AI agents and engineering services for enterprise software development and technology projects.
$32MSeed
Role not disclosedUpscale AI
Provides open-standard AI networking infrastructure for ultra-low-latency training and inference
$190MSeries A+
Role not disclosedAttoTude
Pioneers ASIC over Dielectric interconnect for high-bandwidth, energy-efficient AI infrastructure connectivity
$52MSeries C
Role not disclosedExaforce
AI-native SOC platform using a real-time knowledge graph and Exabots to detect and respond to threats
$125MSeries B
Role not disclosedOpenLight
Builds silicon photonics chips and PDK tools for AI, telecom, and quantum computing markets
$50MSeries A1
Role not disclosedUpscale AI
Provides open-standard AI networking infrastructure for ultra-low-latency training and inference
UndisclosedUndisclosed
Role not disclosedNeuBird AI
Builds agentic AI for enterprise IT operations that automates incident detection and root cause analysis
$19.3MUndisclosed
Role not disclosedCognichip
Develops Artificial Chip Intelligence (ACI) for semiconductor design
$60MSeries A
Role not disclosedRhoda AI
Builds robotic intelligence for real-world environments using video-predictive control
$450MSeries A
Role not disclosedKana
Builds agentic AI platform with customizable agents to automate marketing workflows audience targeting campaign optimization and data integration for marketers and media companies
$15MSeed
Role not disclosedUpscale AI
Provides open-standard AI networking infrastructure for ultra-low-latency training and inference
$200MSeries A
Role not disclosed