Cala Systems, Inc. filed a Form D with the Securities and Exchange Commission on 2026-10-27.
Cala Systems, Inc. filed a Form D notice of an exempt securities offering with the SEC on October 27, 2026. Cala Systems, Inc. was formerly named Altus Thermal, Inc. The filing reports $2.55M sold. Its industry group is Other Technology. It names Michael Rigney (Executive Officer, Director), Michael Ting (Director), David Wilson (Director) (SEC Form D, October 27, 2026).
In its own words: “Cala is the intelligent heat pump water heater that customizes water heating for each home, each day — reliable hot water and lower energy costs.” (calasystems.com, checked November 1, 2026)
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New Form D on file · 2026-10-27 · the record
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Other Technology raises by companies based in Massachusetts, filed in October 2026, largest first.
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What the filing shows about Cala Systems, Inc.
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The filing gives Cala Systems, Inc.'s address as 444 Somerville Avenue, Somerville, MA 02143.
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Full funding history for Cala Systems, Inc. →
This is the company's own disclosure. A payment disclosed on a Form D is a disclosed use of proceeds, not a finding of wrongdoing.
Cala Systems, Inc. is a registered filer with the SEC (CIK 1836919) and has filed since 2022-10-19. 5 filings are on record, the latest on 2026-10-27.
A filing shows the company exists and what it reports about itself. It is not an audit or a rating.
Cala Systems, Inc.'s Form D of 2026-10-27 names Michael Rigney, Michael Ting, David Wilson and 1 more as its officers, directors or promoters.
Its new offerings report $15.11M sold across 5 offerings, as its own filings state.
A hollow marker is an amendment (Form D/A); a solid one is an original Form D. The larger marker is the filing this page is about.
Trailing twelve months. 3844 filings in Other Technology, totalled by week. The dot is this raise, $2.55M, on the same scale — one filing against the whole group's total, so it sits low by construction.
Michael Rigney is named as Executive Officer and Director on the Form D that Cala Systems, Inc. filed with the SEC on 27 October 2026, one of 4 people that filing names.
Michael Ting is named as Director on the Form D that Cala Systems, Inc. filed with the SEC on 27 October 2026, one of 4 people that filing names.
David Wilson is named as Director on the Form D that Cala Systems, Inc. filed with the SEC on 27 October 2026, one of 4 people that filing names.
Thomas Ferguson is named as Director on the Form D that Cala Systems, Inc. filed with the SEC on 27 October 2026, one of 4 people that filing names.
4 people named on the filing — 1 holding an executive role and 3 as directors only.
Named as of the 2026-10-27 filing. Titles and locations are exactly as the filing states — not independently confirmed elsewhere.
No investor is drawn from a Form D — the form states how many invested and never who.
What the filing shows about Cala Systems, Inc.
Only in the Full Report: Who Runs It, And How To Reach Them · Warning Bells · Who Pays Them, And Who They Are Up Against.
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
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On these lists: AI and software raises, week of 2026-10-26 · AI and software raises in Boston
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