What stage does Optimist Ventures invest at?

Optimist Ventures invests at Seed, Series A stages.

What check size does Optimist Ventures write?

InvestorMatch does not have a recorded check size for Optimist Ventures. Its stage focus (Seed, Series A) is the best available signal for round size.

What sectors does Optimist Ventures invest in?

Optimist Ventures invests in Healthcare, AI / ML.

Who are the partners at Optimist Ventures?

Partners at Optimist Ventures include Teddy Himler (General Partner).

What has Optimist Ventures invested in recently?

Optimist Ventures has 3+ portfolio companies, including Harper, Kaya AI, Rebar.

How much capital does Optimist Ventures manage?

Optimist Ventures manages approximately $500M in assets under management.

Optimist Ventures — Seed & Series A VC Firm

Profile updated October 2026Website

Optimist Ventures is a Seed, Series A venture capital firm investing in Healthcare, AI / ML. The firm has 3 portfolio companies in our records.

Portfolio: 3 companies on record
Partners: 1 listed
AUM: $500M
Stage: Seed, Series A
Sectors: Healthcare, AI / ML
Check size: Not in our records

Last verified: 2026-10-27

How to approach: cold outreach ok

Stage

Seed, Series A

AUM

$500M

Portfolio

3+ companies

Team

1 partner

Investment Thesis

A specialized early-stage investor that appears in longevity-and-wellness fund tracking and backs companies in the broader healthspan and wellness ecosystem. It fits the profile of a focused emerging manager rather than a large generalist.

How Optimist Ventures invests

Optimist Ventures is a vc firm. The firm invests at the Seed, Series A stages, with a focus on Healthcare, AI / ML.

Optimist Ventures manages approximately $500M in assets. Our records include 2 funds raised by the firm.

Optimist Ventures has backed 3 companies in our records, including Harper, Kaya AI, Rebar.

Partners & Team

Teddy Himler

General Partner

Industry Focus

Invests In

Healthcare

AI / ML

Funds

Optimist Ventures Fund II

$200M2023

investing

Optimist Ventures Fund I

$100M2021

investing

Recent Activity

Raised Optimist Ventures Fund II ($200M)

2023 · fund records

Raised Optimist Ventures Fund I ($100M)

2021 · fund records

Portfolio Companies (3)

Other

Harper

insurance / insurtech·early stage

E&S insurance brokerage built with AI-enabled operations

Kaya AI

construction software / industrial AI·pre-seed

Supply chain intelligence platform for construction

Rebar

industrial AI / construction tech·early stage / Series A

AI copilot for HVAC professionals

How to pitch Optimist Ventures

•Raising at Seed, Series A? You're squarely in their sweet spot.
•Lead with your fit in Healthcare, AI / ML — the sectors they actively back.
•cold outreach ok
•Address your outreach to a specific partner, such as Teddy Himler, General Partner.
•A warm introduction beats a cold email. Get matched and request an intro.