Locations

WALTHAM

Private financing in WALTHAM, aggregated from public sources.

$11.0B
Capital raised
410
Companies
689
Rounds
2007
First on record
2026-02-25
Latest round

Cooling WALTHAM drew $68.3M over the last 12 months, down 45% versus the prior 12 ($123.5M). Of 406 companies rankable against same-niche peers, 33% model over-valued and 17% under-valued.

Capital flow over time

Quarterly capital raised in WALTHAM.

2008-Q1 · $1.0M2008-Q12008-Q2 · $1.5M2008-Q4 · $7.7M2009-Q1 · $9.1M2009-Q2 · $180.8M2009-Q3 · $61.2M2009-Q4 · $51.6M2009-Q42010-Q1 · $41.5M2010-Q2 · $20.6M2010-Q3 · $76.6M2010-Q4 · $88.8M2011-Q1 · $68.4M2011-Q2 · $116.9M2011-Q22011-Q3 · $69.3M2011-Q4 · $90.2M2012-Q1 · $160.4M2012-Q2 · $115.0M2012-Q3 · $112.4M2012-Q4 · $54.6M2012-Q42013-Q1 · $157.6M2013-Q2 · $37.3M2013-Q3 · $41.6M2013-Q4 · $106.7M2014-Q1 · $678.6M2014-Q2 · $101.7M2014-Q22014-Q3 · $62.5M2014-Q4 · $441.3M2015-Q1 · $60.0M2015-Q2 · $99.5M2015-Q3 · $310.3M2015-Q4 · $196.5M2015-Q42016-Q1 · $156.4M2016-Q2 · $104.6M2016-Q3 · $111.5M2016-Q4 · $54.0M2017-Q1 · $55.3M2017-Q2 · $85.7M2017-Q22017-Q3 · $304.6M2017-Q4 · $33.1M2018-Q1 · $52.3M2018-Q2 · $133.6M2018-Q3 · $225.9M2018-Q4 · $47.3M2018-Q42019-Q1 · $47.9M2019-Q2 · $370.7M2019-Q3 · $68.8M2019-Q4 · $157.4M2020-Q1 · $106.6M2020-Q2 · $126.0M2020-Q22020-Q3 · $303.5M2020-Q4 · $112.6M2021-Q1 · $622.7M2021-Q2 · $261.9M2021-Q3 · $2.3B2021-Q4 · $259.2M2021-Q42022-Q1 · $158.7M2022-Q2 · $138.5M2022-Q3 · $46.9M2022-Q4 · $216.4M2023-Q1 · $105.9M2023-Q2 · $18.7M2023-Q22023-Q3 · $3.0M2023-Q4 · $49.4M2024-Q1 · $55.6M2024-Q2 · $267.4M2024-Q3 · $34.6M2024-Q4 · $29.9M2024-Q42025-Q1 · $12.1M2025-Q2 · $47.0M2025-Q3 · $31.3M2025-Q4 · $13.1M2026-Q1 · $24.0M
Sector mix
SectorCompaniesRoundsCapital
Biotechnology3799$2.5B
Biotech11$2.2B
Other Health Care164205$2.0B
Other Technology3381$1.1B
Other3063$722.8M
Healthtech102113$648.4M
Software / Tech517$465.6M
Other Energy635$282.1M
Top-funded companies
CompanySectorRaisedModeled value
Perkinelmer IncBiotech$2.2B$65.2B
Thermo Fisher Scientific Inc.Other Health Care$500.0M$11.8B
Dyne Therapeutics, Inc.Biotechnology$115.7M$4.6B
DL Private Variable Account AOther$255.8M$4.4B
Palleon Pharmaceuticals Inc.Biotechnology$120.6M$3.9B
Xilio Therapeutics, Inc.Biotechnology$145.2M$3.0B
Corvidia Therapeutics, Inc.Biotechnology$60.0M$2.5B
Zenas BioPharma, Inc.Biotechnology$384.0M$2.3B
Avilar Therapeutics, Inc.Pharmaceuticals$75.3M$2.3B
Syndax Pharmaceuticals IncPharmaceuticals$139.5M$2.1B
Bit9, Inc.Other Technology$220.2M$2.1B
Deciphera Pharmaceuticals, LLCBiotechnology$142.9M$2.1B
Dianthus Therapeutics, Inc.Biotechnology$121.5M$2.1B
Actifio, Inc.Other Technology$237.5M$1.9B
Fresenius Medical Care Voorhees, LLCHealthtech$71.1M$1.8B
TakeOff Technologies, Inc.Software / Tech$161.8M$1.7B
A123 Systems, Inc.Other Technology$119.3M$1.6B
jSonar Inc.Other Technology$50.0M$1.6B
Ventus Therapeutics U.S., Inc.Biotechnology$186.8M$1.6B
Morphic Holding, Inc.Biotechnology$200.6M$1.5B
Other locations

Browse all locations or the full company rankings.

Frequently asked
How much venture funding have companies in WALTHAM raised?
Companies based in WALTHAM have raised approximately $11.0B across 689 recorded financing rounds among 410 companies, aggregated from public sources.
Is startup funding in WALTHAM growing?
WALTHAM funding is currently cooling: capital raised over the last 12 months was down 45% versus the prior 12 months.
What sectors are most active in WALTHAM?
The most active sectors in WALTHAM by recorded financing are Biotechnology, Biotech, Other Health Care, Other Technology. See the sector mix table for company and round counts.
Which are the most-funded companies in WALTHAM?
The most-funded WALTHAM companies in our coverage include Perkinelmer Inc, Thermo Fisher Scientific Inc., Dyne Therapeutics, Inc., DL Private Variable Account A, Palleon Pharmaceuticals Inc.. See the ranked table for disclosed capital and modeled valuations.
WALTHAM startup funding — $11.0B raised · Provath