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Sierra Ventures — Portfolio

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

139
Companies
$2.8B
Total invested
$26.9M
Avg. check
73
Industries
Artificial Intelligence (AI) 15Software 13Information Technology 9Machine Learning 6SaaS 4Computer Vision 2+67 more
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Portfolio companies

Showing 1–24 of 139
Modulate
September 2026

We are a Boston-based startup using AI and audio technologies to create safer & more inclusive voice chat experiences with ToxMod

Audio · Somerville$25.0M Venture - Series Unknown
Invisible AI
September 2022

Invisible AI develops a visual intelligence platform to improve quality, productivity, and safety in manufacturing industries.

Artificial Intelligence (AI) · San Francisco$15.0M Series A
Everestlabs.AI
September 2022

Everestlabs.AI develops an AI-based robotics technology to recover valuable recyclables.

Artificial Intelligence (AI) · Fremont$16.1M Series A
ANDE.AI LTD
September 2026

Ande develops an AI-enabled B2B platform and mobile app for managing corporate hospitality events, bookings, policy controls, and expense流程.

Artificial Intelligence (AI) · New York$52.0M Series A
Hammoq
September 2022

Hammoq provides reCommerce sellers an artificial intelligence listing solution to automate their business.

Artificial Intelligence (AI) · PhoenixDebt Financing
AI Hospitality Group
September 2026

AI Hospitality Group is an AI-powered hotel management platform that runs the back office operations, including staffing, and scheduling.

Agentic AI · Dallas$7.5M Seed
Interplay Learning
September 2024

Interplay Learning is an information technology company that specializes in virtual reality and 3D solutions.

Education · Austin$20.0M Private Equity
Rill Data
August 2022

Rill Data is a simple alternative to complex BI stacks—the fastest, easiest path from data to metrics dashboards.

Analytics · San Francisco$12.0M Seed
Zeni
August 2021

Zeni is an AI bookkeeping software backed by a dedicated finance team.

Accounting · Palo Alto$34.0M Series B
Polymer
August 2021

Polymer is a search and discovery engine for internal business information.

Analytics · New York$4.0M Seed
Quintessent
August 2026

Quintessent is a Santa Barbara start-up that commercializes quantum dot-based lasers and photonic integrated circuits.

AI Infrastructure · Goleta$40.0M Series A
Skydropx
August 2022

Skydropx is a logistics management system designed to manage and regulate shipments.

Delivery · MonterreySeries B
Hashnode
August 2021

Hashnode is the easiest way to start a developer blog on a personal domain for free and connect with the readers through the dev community!

Blogging Platforms · Dover$6.7M Series A
Smallest.ai
July 2026

Smallest.ai builds the full-stack voice AI infrastructure behind real-time, human-like enterprise voice agents.

Artificial Intelligence (AI) · San Francisco$13.0M Series A
Spectro Cloud
July 2026

Spectro Cloud develops an AI infrastructure and cloud-native infrastructure management platform for enterprises.

Artificial Intelligence (AI) · San Jose$100.0M Series D
ProductNow
July 2025

Close the feedback loop with context that travels.

Software · Palo Alto$6.0M Seed
Advekit
June 2022

Advekit is an online healthcare platform that makes mental health therapy easily accessible and affordable.

Health Care · Los AngelesSeed
CNEX Labs
May 2022

CNEX provides revolutionary solid-state storage semiconductor and software solutions for cloud, hyper-scale, and enterprise data centers.

Application Specific Integrated Circuit (ASIC) · San Jose$14.7M Series G
10Web
May 2023

10Web develops AI website builder that builds or recreates any website with the power of AI.

Artificial Intelligence (AI) · NewarkSeed
Agent IQ
April 2025

Agent IQ provides a personal, digital customer engagement platform for community banks and credit unions.

Artificial Intelligence (AI) · AustinDebt Financing
Sedai
April 2026

Autonomous Cloud Optimization

Artificial Intelligence (AI) · PleasantonVenture - Series Unknown
Reify Health
April 2022

Reify Health is a cloud-based software company that develops tools for the clinical trial ecosystem.

Clinical Trials · Boston$220.0M Series D
Wizeline
March 2024

Wizeline is a product design and development services company that builds data-driven, cloud-native products and platforms for its clients.

Artificial Intelligence (AI) · San Francisco$38.0M Venture - Series Unknown
Balto
March 2024

Balto is your AI workforce for the contact center.

Artificial Intelligence (AI) · St Louis$5.7M Series B

Where Sierra Ventures invests

Artificial Intelligence (AI)15
Software13
Information Technology9
Machine Learning6
SaaS4
Computer Vision2

About Sierra Ventures's portfolio

How many companies has Sierra Ventures invested in?▸

Sierra Ventures has invested in 139 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Sierra Ventures invest in?▸

Sierra Ventures's top investment sectors include Artificial Intelligence (AI), Software, Information Technology, Machine Learning, SaaS. The firm invests across 73 different industry categories.

What is Sierra Ventures's largest investment?▸

Among tracked funding rounds, Reify Health received $220.0M in a Series D round. Sierra Ventures's total known invested capital is $2.8B.

What is the average investment size for Sierra Ventures?▸

Sierra Ventures's average investment size is $26.9M across its portfolio of 139 companies.

What are Sierra Ventures's most recent investments?▸

Recent Sierra Ventures portfolio additions include Modulate, Invisible AI, Everestlabs.AI, ANDE.AI LTD, Hammoq. These companies were founded in 2020 or later.

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