Funding · City
Top 19 Waltham startups by funding raised
19 companies headquartered in Waltham, MA disclosed $1.11B across 20 SEC Form D offerings of $20M or more between Q3 2021 and Q2 2026.
$1.11B
Total disclosed
19
Companies
20
Offerings
+56%
Latest year vs the year before
Most funded in Waltham
By total disclosed across the period, one row per company.
$200M
Zenas BioPharma, Inc.
$100M
Dianthus Therapeutics, Inc.
$85M
TakeOff Technologies, Inc.
$75M
Avilar Therapeutics, Inc.
$75M
ConnectRN, Inc.
$75M
Vecna Robotics, Inc.
$72M
$70M
Ventus Therapeutics U.S., Inc.
$55M
THIRD POLE, INC.
$34M
Pyramid Biosciences, Inc.
$30M
OncXerna Therapeutics, Ltd.
$29M
Immunitas Therapeutics, Inc.
$25M
AVAVA, Inc.
$24M
MINERVA BIOTECHNOLOGIES Corp
$20M
$20M
CallMiner, Inc.
What Waltham funds
Also on startersss
Source: SEC Form D structured data. Amounts are self-reported by the issuer on a notice filing — not audited, and cumulative across amendments. Full methodology →