Civic Intelligence

Southworth Development LLC

Plan context: Southworth Development LLC 401(K) Profit Sharing Plan & Trust

EIN 20-2759238 • Newton, MA • 13 filings • 3 plans

120 Wells AvenueNewton, MA 02459
Current Snapshot

Latest Year

2025

2025 Participants

238

2025 Assets

$12,342,432

2025 Contributions

$1,504,992

Historical Graphs

Total Assets Over Time

Aggregate end-of-year assets by filing year, excluding zero-asset years

$12,342,432$6,171,216$0200520202024YearValue
$12,342,432Latest year 2024

Participants Over Time

Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans

3491750200520202025YearValue
238Latest year 2025

Company Timeline

Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.

Year / FilingFilingsParticipantsAssetsContributionsContrib./Participant
20251238$0$0-
Southworth Development Health and Welfare Plan-238---
20242349$12,342,432$1,504,992$4,312iApproximate average salary by contribution assumption: employee only about $107,807 at 4% or $71,872 at 6%; with 50% employer match about $71,872 at 4% or $47,914 at 6%; with 100% employer match about $53,904 at 4% or $35,936 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-349$12,342,432$1,504,992$4,312iApproximate average salary by contribution assumption: employee only about $107,807 at 4% or $71,872 at 6%; with 50% employer match about $71,872 at 4% or $47,914 at 6%; with 100% employer match about $53,904 at 4% or $35,936 at 6%.
Southworth Development Health and Welfare Plan-221---
20231273$10,136,091$1,100,056$4,030iApproximate average salary by contribution assumption: employee only about $100,738 at 4% or $67,158 at 6%; with 50% employer match about $67,158 at 4% or $44,772 at 6%; with 100% employer match about $50,369 at 4% or $33,579 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-273$10,136,091$1,100,056$4,030iApproximate average salary by contribution assumption: employee only about $100,738 at 4% or $67,158 at 6%; with 50% employer match about $67,158 at 4% or $44,772 at 6%; with 100% employer match about $50,369 at 4% or $33,579 at 6%.
20221142$8,994,425$1,036,488$7,299iApproximate average salary by contribution assumption: employee only about $182,480 at 4% or $121,654 at 6%; with 50% employer match about $121,654 at 4% or $81,102 at 6%; with 100% employer match about $91,240 at 4% or $60,827 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-142$8,994,425$1,036,488$7,299iApproximate average salary by contribution assumption: employee only about $182,480 at 4% or $121,654 at 6%; with 50% employer match about $121,654 at 4% or $81,102 at 6%; with 100% employer match about $91,240 at 4% or $60,827 at 6%.
20211125$9,638,538$740,127$5,921iApproximate average salary by contribution assumption: employee only about $148,025 at 4% or $98,684 at 6%; with 50% employer match about $98,684 at 4% or $65,789 at 6%; with 100% employer match about $74,013 at 4% or $49,342 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-125$9,638,538$740,127$5,921iApproximate average salary by contribution assumption: employee only about $148,025 at 4% or $98,684 at 6%; with 50% employer match about $98,684 at 4% or $65,789 at 6%; with 100% employer match about $74,013 at 4% or $49,342 at 6%.
20201126$8,933,734$1,152,481$9,147iApproximate average salary by contribution assumption: employee only about $228,667 at 4% or $152,445 at 6%; with 50% employer match about $152,445 at 4% or $101,630 at 6%; with 100% employer match about $114,333 at 4% or $76,222 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-126$8,933,734$1,152,481$9,147iApproximate average salary by contribution assumption: employee only about $228,667 at 4% or $152,445 at 6%; with 50% employer match about $152,445 at 4% or $101,630 at 6%; with 100% employer match about $114,333 at 4% or $76,222 at 6%.
201010$0$0-
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-0$0$0-
2009112$640,867$117,158$9,763iApproximate average salary by contribution assumption: employee only about $244,079 at 4% or $162,719 at 6%; with 50% employer match about $162,719 at 4% or $108,480 at 6%; with 100% employer match about $122,040 at 4% or $81,360 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-12$640,867$117,158$9,763iApproximate average salary by contribution assumption: employee only about $244,079 at 4% or $162,719 at 6%; with 50% employer match about $162,719 at 4% or $108,480 at 6%; with 100% employer match about $122,040 at 4% or $81,360 at 6%.
2008113$408,280$114,718$8,824iApproximate average salary by contribution assumption: employee only about $220,612 at 4% or $147,074 at 6%; with 50% employer match about $147,074 at 4% or $98,050 at 6%; with 100% employer match about $110,306 at 4% or $73,537 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-13$408,280$114,718$8,824iApproximate average salary by contribution assumption: employee only about $220,612 at 4% or $147,074 at 6%; with 50% employer match about $147,074 at 4% or $98,050 at 6%; with 100% employer match about $110,306 at 4% or $73,537 at 6%.
200719$468,481$67,891$7,543iApproximate average salary by contribution assumption: employee only about $188,586 at 4% or $125,724 at 6%; with 50% employer match about $125,724 at 4% or $83,816 at 6%; with 100% employer match about $94,293 at 4% or $62,862 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-9$468,481$67,891$7,543iApproximate average salary by contribution assumption: employee only about $188,586 at 4% or $125,724 at 6%; with 50% employer match about $125,724 at 4% or $83,816 at 6%; with 100% employer match about $94,293 at 4% or $62,862 at 6%.
200617$408,608$35,424$5,061iApproximate average salary by contribution assumption: employee only about $126,514 at 4% or $84,343 at 6%; with 50% employer match about $84,343 at 4% or $56,229 at 6%; with 100% employer match about $63,257 at 4% or $42,171 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-7$408,608$35,424$5,061iApproximate average salary by contribution assumption: employee only about $126,514 at 4% or $84,343 at 6%; with 50% employer match about $84,343 at 4% or $56,229 at 6%; with 100% employer match about $63,257 at 4% or $42,171 at 6%.
200517$332,635$331,126$47,304iApproximate average salary by contribution assumption: employee only about $1,182,593 at 4% or $788,395 at 6%; with 50% employer match about $788,395 at 4% or $525,597 at 6%; with 100% employer match about $591,296 at 4% or $394,198 at 6%.
Southworth Development LLC 401(K) Profit Sharing Plan & Trust-7$332,635$331,126$47,304iApproximate average salary by contribution assumption: employee only about $1,182,593 at 4% or $788,395 at 6%; with 50% employer match about $788,395 at 4% or $525,597 at 6%; with 100% employer match about $591,296 at 4% or $394,198 at 6%.