Boston Millennia Partners
Providing Growth Equity Financing to Healthcare Companies for Over 30 years. Our Boston-based venture capital investing philosophy is guided by our Core Company Investment Strategy, which accelerates the growth of a company through strategic consolidation within an industry. Focused on the “buy-and-build” strategy to support startups and entrepreneurs.
In the firm's own words, from its website.
6 additional team members, 17 additional co-investors and affiliates, 44 additional investments, funds and LPs, 6 events, 4 verified contacts (3 professional url, 1 firm phone)
Every relationship, signal and contact on this record, with the source on each.
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
What matters now
- 1 companyportfolio raising
One portfolio company has new financing on record in 6 months without this firm named on the round; the latest on 6 Jul 2026 ($5.59M sold on Form D).
A portfolio company raising again is a follow-on decision for the firm and a co-investment opening for others.
- 3 dealswith Aperture Management
Invests most often alongside Aperture Management (3 shared deals) and RRE Ventures (2 shared deals).
pair last observed on record 1 Oct 2026, not a deal date · The firms it syndicates with are the likeliest to see the same deals and to fill out its rounds.
Measuredshared rounds and portfolio companies on recordFor Founders building a round, co-investorsCo-investors →
People to know
View all people- Managing PartnerWhy: Managing partner: runs the firmProfile
- President, Managing General PartnerWhy: General partner: carries the investment decisionNo route on file yet
- PartnerWhy: Partner: part of the investment decisionNo route on file yet
Relationship network
79 connected entities10 observed rounds3 repeat counterparties2 dated rounds shown here, 2010 to 2012
From financing rounds and every investor named in them, Form ADV and Form D filings, the firm's funds and team, and disclosed LP commitments in the venture capital graph. A round's amount is the size of the round, not money that moved between two investors.
Some relationships on this record are counted rather than named here. They open with the full profile.
Click any name or line for the rounds and sources behind it. Line weight is rounds together; dashed lines are inferred.
- Sponsor
- Company
- Fund or vehicle
- Person
›How strength and recency are read
Co-investors are read from the rounds: three or more shared rounds is a strong observed relationship, two a repeat co-investor, one a single round. Funds and people are structural. Nothing is scored that a reader cannot check.
Darker lines were active in the last 24 months or are current; lighter lines are older or undated.
How am I connected?
Name your firm, a company or a person, and DFX finds the published routes to Boston Millennia Partners: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.
See how you connect to Boston Millennia Partners
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
Investing
42 companies on record, 0 new in 12 months
Investments on record
What these amounts mean“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.Acquired, Public, Exited and Active are what the firm’s own portfolio card says, read on the date shown when you hover the chip; they are not deal dates. A company with no chip is one whose card states no outcome: DFX does not assume it is active.| Company | Round | Role | Partner | Round size | This investor | Date | Source |
|---|---|---|---|---|---|---|---|
| Amira | portfolio listing | unknown | unknown | unknown | unknown | Oct 1, 2026 | Fact Firm website |
| Arthrosurface | portfolio listing | unknown | unknown | unknown | unknown | Oct 1, 2026 | Fact Firm website |
| Athenix | portfolio listing | unknown | unknown | unknown | unknown | Oct 1, 2026 | Fact Firm website |
Stated thesis versus observed behaviour
- Sectors
- not stated or not yet read
- Stages
- not stated or not yet read
- Geography
- boston
- Check size
- not stated; DFX does not estimate checks from round sizes
Team
11 current, 0 departed
Decision makers
- Dana Callow · Managing PartnerWhy this person: Managing partner: runs the firm; Named with investment responsibilityLinkedIn or profile link on file (firm website), confirmed 2026-10-01, confidence 90%
- A. Dana Callow · President, Managing General PartnerWhy this person: General partner: carries the investment decision; Named with investment responsibility
- Ren Roome · PartnerWhy this person: Partner: part of the investment decision; Named with investment responsibility
Ranked by the role the firm or its filing states, a route on file and deals led. Every reason is read from the record, never inferred. 1 with a route on file. Routes are published by the person or the firm (their bio, the team page or a filing) and are revealed on a plan; data bought from a provider is never shown, and a route printed at a firm the person has since left is held back.
Investment team
How the team is orderedPartners who lead rounds first (rounds led, then deals attributed, then seniority), then the rest of the investment team, then investor relations, finance and operations. A person named by two sources under two spellings is shown once.- President, Managing General Partner · 1 deal attributed
- Managing Partner
- Partner · 4 deals attributed
Contacts
1 firm phone, 3 professional url on record, each with its source. Values open with the complete profile.
Funds and LPs
7 vehicles, 0 LPs disclosed
Funds and vehicles
What these amounts meanGAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.Limited partners
Known LPs and allocators
What these amounts and dates areEach commitment is counted once across the pension tape and the allocator graph. A commitment date prints only when the source printed one; otherwise the row carries the report date. A foundation’s 990-PF line is a holding at fair value, never a commitment. Rows without a fund on the venture graph are commitments to this manager.Relationships across DFX
20 co-investors
Co-investors
- 2026-10-013 shared deals · recurring
- 2012-02-132 shared deals · recurring
- 2026-10-011 shared deal · one time
Evidence and history
11 dated events, 75 observations from 3 sources
Timeline
- seen on or beforeSep 15, 2026Boston Millennia Partners: INSTITUTIONAL_VC -> MICRO_VC (venture manager, reported GAV $27.1M across 7 vehicles)Classification changedClassificationInference
- Mar 1, 2023
- Feb 26, 2020
- Feb 8, 2017
- Mar 30, 2012
Identity and regulatory footprint
Address, phone, Form ADV filing and ownersForm ADV filed Feb 26, 2026 · 3 private fundsShowHide
- Headquarters
- Boston, MAadviserinfo.sec.gov
- Office address
- unknownadviserinfo.sec.gov
- Business phone
- unknownadviserinfo.sec.gov
- Website
- BMPVC.COM
- SEC adviser type
- Exempt reporting adviseradviserinfo.sec.gov
- SEC exemption claimed
- Venture capital fund adviseradviserinfo.sec.govItem 2.B(1): advises solely venture capital funds
- Latest Form ADV
- Feb 26, 2026
- Private funds reported
- 3 (3 venture capital funds)adviserinfo.sec.gov
- Private fund gross assets, adviser total
- $24.1Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
Classification history
Classification history
Every classification this record has carried3 on recordShowHide
- Sep 23, 2026Micro VC (confirmed, 95%)Venture manager, reported GAV $31.0M across 7 vehicles
- Sep 15, 2026Micro VC (confirmed, 95%)Venture manager, reported GAV $27.1M across 7 vehicles
- Sep 12, 2026Institutional venture firm (confirmed, 70%)Venture manager with no reported fund assets yet (scale unknown)
Evidence
Every observation behind this profile, with its source, date and class
| Fact | Value | Effective | Class | Source |
|---|---|---|---|---|
| Why admitted | VC exemption, VC funds reported | Feb 26, 2026 | Fact | Form ADV |
| SEC exemption claimed | Venture capital fund adviser | Feb 26, 2026 | Fact | Form ADV |
| SEC exemption claimed | Venture capital fund adviser | Mar 4, 2024 | Fact | Form ADV |
| SEC adviser type | Exempt reporting adviser | Feb 26, 2026 | Fact | Form ADV |
| SEC adviser type | Exempt reporting adviser | Feb 26, 2026 | Fact | Form ADV |
| SEC adviser type | Exempt reporting adviser | Mar 4, 2024 | Fact | Form ADV |
| First Form ADV filing | 2012-03-30 | Feb 26, 2026 | Fact | Form ADV |
| First Form ADV filing | 2012-03-30 | Mar 4, 2024 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-30 | Oct 1, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-29 | Sep 30, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-25 | Sep 26, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-23 | Sep 24, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-21 | Sep 23, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-22 | Sep 23, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1 | Sep 12, 2026 | Fact | Form ADV |
| Latest Form ADV filing | 2026-02-26 | Feb 26, 2026 | Fact | Form ADV |
| Latest Form ADV filing | 2026-02-26 | Feb 26, 2026 | Fact | Form ADV |
| Latest Form ADV filing | 2024-03-04 | Mar 4, 2024 | Fact | Form ADV |
| SEC status | ERA - Active | Feb 26, 2026 | Fact | Form ADV |
| SEC status effective | 2012-03-30 | Feb 26, 2026 | Fact | Form ADV |
| Venture share of reported funds | 1 | Feb 26, 2026 | Fact | Form ADV |
| Venture share of reported funds | 1 | Mar 4, 2024 | Fact | Form ADV |
| Business phone | Feb 26, 2026 | Fact | Form ADV | |
| Business phone | Mar 4, 2024 | Fact | Form ADV | |
| Contact page url | Oct 1, 2026 | Fact | ||
| Contact page url | Sep 16, 2026 | Fact | ||
| Description | Oct 1, 2026 | Fact | ||
| Description | Sep 16, 2026 | Fact | ||
| Description | Sep 13, 2026 | Fact | ||
| Headquarters | Feb 26, 2026 | Fact | Form ADV | |
| Headquarters | Mar 4, 2024 | Fact | Form ADV | |
| Office address | Feb 26, 2026 | Fact | Form ADV | |
| Office address | Mar 4, 2024 | Fact | Form ADV | |
| Legal form | Corporation | Feb 26, 2026 | Fact | Form ADV |
| Legal form | Corporation | Mar 4, 2024 | Fact | Form ADV |
| Portfolio page | Oct 1, 2026 | Fact | ||
| Portfolio page | Sep 16, 2026 | Fact | ||
| Portfolio page | Sep 13, 2026 | Fact | ||
| Private funds reported | 3 | Feb 26, 2026 | Fact | Form ADV |
| Private funds reported | 3 | Feb 26, 2026 | Fact | Form ADV |
| Private funds reported | 7 | Mar 4, 2024 | Fact | Form ADV |
| Private fund gross assets (reported) | $24.1M | Feb 26, 2026 | Fact | Form ADV |
| Private fund gross assets (reported) | $24.1M | Feb 26, 2026 | Fact | Form ADV |
| Private fund gross assets (reported) | $27.1M | Mar 4, 2024 | Fact | Form ADV |
| Schedule a diff | sadiff-1 | Feb 26, 2026 | Fact | Form ADV |
| Stated geography | boston “geography words on the home page” | Oct 1, 2026 | Fact | |
| Stated geography | boston “geography words on the home page” | Sep 16, 2026 | Fact | |
| Stated geography | boston “geography words on the home page” | Sep 13, 2026 | Fact | |
| Team page | Oct 1, 2026 | Fact | ||
| Team page | Sep 16, 2026 | Fact | ||
| Team page | Sep 13, 2026 | Fact | ||
| Venture funds reported | 3 | Feb 26, 2026 | Fact | Form ADV |
| Venture funds reported | 3 | Feb 26, 2026 | Fact | Form ADV |
| Venture funds reported | 7 | Mar 4, 2024 | Fact | Form ADV |
| Website | Feb 26, 2026 | Fact | Form ADV | |
| Website | Mar 4, 2024 | Fact | Form ADV | |
| Website resolved domain | bostonmillenniapartners.com | Oct 1, 2026 | Fact | |
| Website resolved domain | bostonmillenniapartners.com | Sep 16, 2026 | Fact | |
| Website resolved domain | bostonmillenniapartners.com | Sep 14, 2026 | Fact | |
| Site title | Oct 1, 2026 | Fact | ||
| Site title | Sep 16, 2026 | Fact | ||
| Site title | Sep 13, 2026 | Fact |
How this is scored
Scores, classification basis and filing advisersMicro VC, confirmedShowHide
Venture manager, reported GAV $31.0M across 7 vehicles
- importance
- gav: 0.12 · funds: 0.67 · people: 0.32 · investments: 0.63 · co investors: 0.53
- active deployment
- investments 12m: 0 · fund raising 18m: 0 · people joined 12m: 0 · vintage within 3y: 1 · latest investment at: not scored
- emerging manager
- fund count: 8 · reported gav: $24.1M · first adv filing: 2012-03-30 · years since first filing: 14.5
Fits, record history and connections
scored matches for this investor, every identity change, every edge
Record history
- Organization classification changed2026-09-15
- Adviser's first ADV filing2012-03-30source on record
The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.